Vapor Treated Before Mixing With Combustible Mixture (e.g., Cooling) Patents (Class 123/573)
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Patent number: 12129849Abstract: One embodiment of a method for operating an internal combustion engine under a pressure less than atmospheric pressure includes the steps of positioning a vacuum pump such that said vacuum pump is in fluid communication with a crankcase of said internal combustion engine, connecting a discharge of said vacuum pump to a separator, wherein a portion of said discharge of said vacuum pump condenses in said separator, connecting a vapor discharge of said separator to a filter, wherein said filter removes a portion of volatile organic compounds from said vapor discharge, and venting said filter to an ambient atmosphere.Type: GrantFiled: November 8, 2022Date of Patent: October 29, 2024Inventor: Laverne Schumann
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Patent number: 12129816Abstract: An emissions evacuator system that collects natural gas vented from various components of a natural gas compressor system and directs the vented gases to the intake system of a natural gas engine of the compressor system. The evacuator system utilizes vacuum from an intake system of the natural gas engine contained on compressor packages to “suck up” the gaseous emissions from various emission sources on the compressor package. These emissions are rendered inert when combusted in the natural gas engine.Type: GrantFiled: December 18, 2023Date of Patent: October 29, 2024Assignee: Estis Compression, LLCInventors: Will A. Nelle, Chris Lindsey
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Patent number: 12115478Abstract: The invention relates to an aerosol separator for separating aerosols in a blow-by gas, which comprises at least one feed opening for feeding a blow-by gas provided with aerosols, an outlet opening for discharging a blow-by gas cleaned of aerosols, at least one outflow opening for releasing aerosols removed from the blow-by gas, and which is arranged between a flow path of the at least one feed opening and the outlet opening, and a plurality of projections for configuring the flow path running from the at least one feed opening to the outflow opening in a meandering manner, in order to decelerate the blow-by gas which enters the feed opening and which is provided with aerosols, in terms of its flow rate. The separator is characterized in that the projections in their end region, around which blow-by gas flows, have a portion with increasing projection width.Type: GrantFiled: June 1, 2023Date of Patent: October 15, 2024Assignees: Liebherr Machines Bulle SA, Deere & CompanyInventors: Zhi Li, Domenico Palmisani, Kyle D. Redfern
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Patent number: 12071872Abstract: A compressor assembly includes a compressor housing having an inlet port configured to receive intake air and an outlet port configured to discharge pressurized air. A hollow section having an inner radial surface defines the inlet port of the compressor housing. A compressor wheel is disposed in the hollow section. A positive crankcase ventilation (PCV) passage is configured to allow airflow between a crankcase of an engine and the hollow section of the compressor housing. The PCV passage has an outlet opening that opens into the hollow section of the compressor housing and the inner radial surface includes an integrally formed raised boss surrounding the outlet opening and protruding into the hollow section.Type: GrantFiled: March 6, 2023Date of Patent: August 27, 2024Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Fengkun Wang, Carnell E. Williams, Chijou Wang, Maxwell Tyler Doiron
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Patent number: 12060817Abstract: A blow-by gas filtration assembly an axis and includes a support body including a filtration chamber, an inlet mouth of the blow-by gases to be filtered, and an outlet mouth of the filtered blow-by gases. The filtration assembly includes a hollow, cylindrical filter group having a central chamber traversable radially from the outside to the inside by blow-by gases, a control drive operatively connected to the filter group to control it in rotation and a shaft, for support and control, extending along the axis defining internally an air duct through which the filtered blow-by gases flow. The shaft includes a filter portion on which the filter group is mounted, a control portion operatively connected to the control drive and an outflow portion axially positioned between the filter portion and the control portion including at least one outflow window through which the filtered blow-by gases flow.Type: GrantFiled: July 28, 2020Date of Patent: August 13, 2024Assignee: UFI FILTERS S.P.A.Inventor: Giorgio Girondi
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Patent number: 11969683Abstract: A separation assembly comprises a housing and a plate. The housing comprises an inlet and an outlet. The plate is positioned within the housing between the inlet and the outlet. The plate comprises a wall, at least one aperture, and at least one chimney comprising an inner surface surrounding the at least one aperture and an outer surface. The chimney extends from an upstream side of the wall and encompasses only a portion of a flow path between the inlet and the upstream side of the wall such that fluid can flow radially beyond the outer surface of the at least one chimney in the housing between the inlet and the wall.Type: GrantFiled: June 3, 2021Date of Patent: April 30, 2024Assignee: CUMMINS FILTRATION IP, INC.Inventors: Ruchi Lutade, Avinash Ayarekar, Christopher E. Holm, Benjamin L. Scheckel, Sachin Ravasaheb Managave, Vijay Dinkar Kolhe
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Patent number: 11946397Abstract: An engine system optionally including: a crankcase of an engine having a blow-by gas passing therethrough; a liquid source containing a liquid; and an oil separating apparatus in fluid communication with the blow-by gas. The oil separating apparatus having a coalescing filter to separate oil from the blow-by gas. Separate from the blow-by gas and the coalescing filter, the oil separating apparatus is in fluid communication with the liquid source to receive the liquid. The liquid is passed through the oil separating apparatus in a heat exchange relationship with the blow-by gas to maintain a desired temperature range for the blow-by gas.Type: GrantFiled: May 1, 2023Date of Patent: April 2, 2024Assignee: Caterpillar Inc.Inventors: Rodney Allen Lawrence, Brandyn A. Stack, Joshua Amiel Lehe, Nicholas Edwin Wainscott, Eric John Forthofer
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Patent number: 11939895Abstract: The invention relates to an internal combustion engine, comprising an intake path, a crankcase, an exhaust gas path and a crankcase ventilation means, wherein the crankcase ventilation means is open, closed or separate. The internal combustion engine according to the invention comprises an intake path, a crankcase, an exhaust gas path and an open crankcase ventilation means, wherein the open crankcase ventilation means comprises a first line and a second line, wherein the first line is designed to connect the exhaust gas path to the crankcase in order to guide exhaust gas out of the exhaust gas path to the crankcase, and wherein the second line is designed to connect the crankcase to the exhaust gas path in order to discharge exhaust gas and leakage gases located in the crankcase from the crankcase and to feed them to the exhaust gas path.Type: GrantFiled: December 20, 2022Date of Patent: March 26, 2024Assignee: FEV Group GmbHInventors: Werner Bick, Ralf Bey, Markus Ehrly, Ralf Jans, Christoph Biwer
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Patent number: 11852057Abstract: This heat exchanger is provided with an inner tube 2, a first flow passage 3 formed inside the inner tube 2, an outer tube 4 disposed coaxially with the inner tube 2 on the radially outer side thereof, a second flow passage 5 formed between the inner tube 2 and the outer tube 4, annular separating walls P1 to P4 which divide the second flow passage 5 into a plurality of spaces S1 to S5 in the axial direction of the outer tube 4, and space outlets E formed in one location in the circumferential direction of each separating wall P1 to P4, wherein the spaces S1 to S5 are configured to cause a second fluid to swirl about second axes Y perpendicular to a first axis X positioned at the center of the outer tube 4.Type: GrantFiled: September 17, 2020Date of Patent: December 26, 2023Assignee: ISUZU MOTORS LIMITEDInventors: Yuki Himuro, Kotaro Kimura, Hiroyuki Watanabe
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Patent number: 11808224Abstract: A vehicle controller is provided. A first passage of a supply passage of a blow-by gas processing device is connected to a portion of an intake passage located downstream of a compressor of a forced-induction device. The first passage includes a connection portion connected to the intake passage. A portion of the first passage between the connection portion and a PCV valve is a passage downstream portion. A supercooling determination process determines whether the supply passage is supercooled by relative wind of a vehicle based on a travel speed of the vehicle. An operating state changing process sets operation of the internal combustion engine to non-boosting operation when an ambient temperature of the vehicle is less than or equal to a determination temperature, the PCV valve is determined as being closed, and the supply passage is determined as being supercooled.Type: GrantFiled: March 30, 2023Date of Patent: November 7, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kentaro Sakagami, Shinichi Taniguchi
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Patent number: 11739669Abstract: The blow-by gas treating device 100 has a main structure portion 101 which separates oil OL from the blow-by gas BG and an outlet portion 40 which supplies gas G having been separated from the blow-by gas BG to an intake system. The main structure portion 101 has a first blow-by gas taking-in portion 111, a second blow-by gas taking-in portion 112, a separating portion 330 which separates the blow-by gas BG into oil OL and gas G, a first oil guiding portion 151 which guides the oil OL to a front side, a second oil guiding portion 152 which guides the oil OL to a rear side, a first oil drain 161 which discharges the oil OL into the engine, and a second oil drain 162 which discharges the oil OL into the engine.Type: GrantFiled: March 9, 2021Date of Patent: August 29, 2023Assignee: KUBOTA CORPORATIONInventors: Masayasu Takami, Katsunori Ikemachi, Yuki Yoshita, Masayuki Tochimoto, Kazuya Ishida, Tomohiro Suzuki, Yu Suzuki, Toru Suzuki, Kentaro Kita
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Patent number: 11719140Abstract: A crankcase ventilation system is disclosed that includes a PCV valve, a spigot and a tube connector. The PCV valve is enclosed in a module housing that encloses a plunger, and a spring. The module housing defines an inlet opening, and an outlet opening and is assembled inside an engine component. The spigot is attached to an outer surface of the engine and is in fluid communication with the PCV valve through the outlet opening. The tube connector is in fluid communication with the tube connector and the PCV valve. An intake manifold of the engine provides vacuum to the PCV valve, through the tube, the tube connector and the spigot. If one of the tube, tube connector, or spigot is detached from the engine, the PCV valve is retained in the engine and is held closed by the spring biasing the plunger against the inlet opening.Type: GrantFiled: September 1, 2022Date of Patent: August 8, 2023Assignee: FORD GLOBAL TECHNOLOGIES, LLCInventors: Christopher Palazzolo, Erzabeth J. Holcombe, Kristofor Robert Norman
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Patent number: 11717779Abstract: The invention relates to an aerosol separator for separating aerosols in a blow-by gas, which comprises at least one feed opening for feeding a blow-by gas provided with aerosols, an outlet opening for discharging a blow-by gas cleaned of aerosols, at least one outflow opening for releasing aerosols removed from the blow-by gas, and which is arranged between a flow path of the at least one feed opening and the outlet opening, and a plurality of projections for configuring the flow path running from the at least one feed opening to the outflow opening in a meandering manner, in order to decelerate the blow-by gas which enters the feed opening and which is provided with aerosols, in terms of its flow rate. The separator is characterized in that the projections in their end region, around which blow-by gas flows, have a portion with increasing projection width.Type: GrantFiled: July 14, 2021Date of Patent: August 8, 2023Assignees: Liebherr Machines Bulle SA, Deere & CompanyInventors: Zhi Li, Domenico Palmisani, Kyle D. Redfern
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Patent number: 11698156Abstract: A connector assembly is provided. The connector assembly includes a connector body, a movable component selectively movable between an uninstalled state and an installed state, a digital tag, and a digital blocker. When the movable component is moved from the uninstalled state to the installed state, the digital blocker is moved relative to the digital tag from a position where the digital tag is blocked by the digital blocker to a position where the digital tag is unblocked by the digital blocker, thereby providing a digital indication of a successful connection between the connector body and the movable component.Type: GrantFiled: December 20, 2018Date of Patent: July 11, 2023Assignee: ILLINOIS TOOL WORKS INC.Inventors: Joseph C. Kuhn, Dennis M. Mark
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Patent number: 11692461Abstract: A drainage structure includes: a main body including an intake flow path; a compressor impeller disposed in the intake flow path; an accommodation chamber formed in the main body at a position upstream of the compressor impeller in a flow of an intake air; a movable member disposed in the accommodation chamber; and a connecting passage connected to the accommodation chamber.Type: GrantFiled: January 4, 2022Date of Patent: July 4, 2023Assignee: IHI CorporationInventor: Ryota Sakisaka
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Patent number: 11635049Abstract: An air induction system includes an air duct and an air permeable membrane. The air duct is configured to deliver intake air to an engine. The air duct includes a cylindrical wall defining a bore and an enclosure projecting from an outer radial surface of the cylindrical wall and defining a cavity therein. The cylindrical wall has an opening extending therethrough that enables airflow from the bore to the cavity in the enclosure. The air permeable membrane is configured to cover the opening in the cylindrical wall.Type: GrantFiled: December 20, 2021Date of Patent: April 25, 2023Assignee: MANN+HUMMEL GmbHInventors: Stephen J Hamby, Robert VanHulle
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Patent number: 11598295Abstract: Engines and engine systems for managing blow-by gas and/or moisture therein, and methods of operating the same are disclosed. The engine systems may include an air intake system including a compressor such as a turbocharge and a charge air cooler. The engine system may also include an engine such as combustion engine have a crankcase. During combustion blow-by gas may be captured in the crankcase and recirculated back to the air intake system. The blow-by gas may be diluted by additional air such as fresh air prior to being recirculated. The system may also include a pump to facilitate recirculation.Type: GrantFiled: December 27, 2021Date of Patent: March 7, 2023Assignee: Ford Global Technologies, LLCInventors: Shuya Shark Yamada, Shawn Spannbauer
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Patent number: 11598232Abstract: A PCV valve coupling structure that couples a PCV valve to an internal combustion engine is employed in the PCV valve used to adjust a gas flow area of a blow-by gas passage. Blow-by gas in the internal combustion engine flows to an intake system of the internal combustion engine. In the PCV valve coupling structure, the PCV valve is coupled to the internal combustion engine in a non-removable manner.Type: GrantFiled: April 11, 2019Date of Patent: March 7, 2023Assignees: TOYOTA BOSHOKU KABUSHIKI KAISHA, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Naritsune Miyanaga, Yoji Horiuchi, Hideto Morishita, Masami Ishikawa
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Patent number: 11572814Abstract: An oil and air separator including a catch can with an inlet and an outlet thereto, the catch can adapted to remove oil from vapors entering the catch can via the inlet, and including an internal reservoir within which oil from the vapors entering the catch can may collect; and a check valve including a first end disposed within the internal reservoir, a second end, and a first fluid pathway therebetween in fluid communication with the internal reservoir, wherein vapors within the internal reservoir may exit the catch can through the first fluid pathway or a second fluid pathway including the outlet.Type: GrantFiled: August 20, 2020Date of Patent: February 7, 2023Inventor: Joe Mainiero
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Patent number: 11524255Abstract: Various example embodiments relate to a filtration system. The filtration system includes a filter housing having a first housing end and a second housing end. The filter housing includes a housing cover defining an outlet. The housing cover includes a first guidance element extending from an internal portion of the housing cover axially away from the outlet. A second guidance element extends from the internal portion of the housing cover axially away from the outlet. A filter element has a first filter end and a second filter end. The filter element includes an end cap adjacent the first filter end and defining an end cap opening therethrough. The end cap includes a channel around the end cap opening. Filter media has a first media end and a second media end. The filter media extends axially from the first media end toward the second media end.Type: GrantFiled: November 5, 2019Date of Patent: December 13, 2022Assignee: Cummins Filtration Inc.Inventors: Narendra Kumar Tripathi, Ruchi Lutade, Devendra Kalaskar, Santosh Bhagwat
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Patent number: 11480118Abstract: The invention provides a system for ventilation of a crankcase (217) of an internal combustion engine, the system comprising—an air inlet guide (203, 212) adapted to guide air to at least one cylinder (220) of the engine,—a closed circuit conduit (209) for guiding crankcase gas from the crankcase (217) to the air inlet guide (203, 212),—wherein the system comprises gas detection means (2181, 2182, 2183) positioned in the air inlet guide (203, 212), for detecting crankcase gas in the air inlet guide.Type: GrantFiled: May 16, 2017Date of Patent: October 25, 2022Assignee: VOLVO TRUCK CORPORATIONInventor: Sergi Yudanov
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Patent number: 11459920Abstract: This blow-by gas discharge device is provided with: blow-by gas piping 23 which is extended from the height position of the upper end of an internal combustion engine 1 to the height position of the lower end, is exposed to the outside air, and has an outlet 33 open to the atmosphere; and a heating chamber 24 which is provided between the ends of the blow-by gas piping, is formed in the flywheel housing 10 of the internal combustion engine, and heats blow-by gas.Type: GrantFiled: September 24, 2019Date of Patent: October 4, 2022Assignee: ISUZU MOTORS LIMITEDInventors: Tadashi Morooka, Yuuki Himuro
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Patent number: 11434981Abstract: A work vehicle includes an engine and a belt-type continuously variable transmission device provided on a lateral side of the engine and configured to (i) receive power from the engine and (ii) output the power to a traveling device while varying the power in terms of speed. The belt-type continuously variable transmission device has (i) an intake port which is present in the transmission device case and through which cooling air is sucked from outside the transmission device case into the transmission device case as a result of rotation of the rotary fan and (ii) a first exhaust port which is present in the transmission device case and through which the cooling air is discharged from inside the transmission device case as a result of the rotation of the rotary fan. The first exhaust port is present on a side of the exhaust pipe on which side the engine is present, and faces the engine.Type: GrantFiled: June 9, 2020Date of Patent: September 6, 2022Assignee: Kubota CorporationInventors: Yoshinori Oyama, Yusuke Morita, Toshiki Ono
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Patent number: 11401844Abstract: A blow-by gas leak diagnostic device includes a first PCV flow path, a second PCV flow path, a fresh air inlet, a pressure measurement unit, a first valve that opens and closes the first PCV flow path, a second valve that opens and closes the second PCV flow path, a third valve that opens and closes the fresh air inlet, a valve control unit, and a leak diagnosis unit. The valve control unit controls an opening degree of the third valve when a downstream side of an intake manifold with respect to a throttle valve has a negative pressure, and the second valve is in a closed state. The leak diagnosis unit diagnoses presence or absence of a leak in the first PCV flow path on the basis of an inner pressure of the first PCV flow path measured by the pressure measurement unit.Type: GrantFiled: December 23, 2021Date of Patent: August 2, 2022Assignee: NIDEC TOSOK CORPORATIONInventors: Chikao Komaki, Ryota Ito
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Patent number: 11401846Abstract: An oil mist separator for an internal combustion engine includes a cylinder head cover, a baffle plate, and a cam spray plate. The baffle plate is fixed to an inner surface of the cylinder head cover. A section between the cylinder head cover and the baffle plate defines an oil separation chamber. The cam spray plate is fixed to a surface of the baffle plate opposite to the cylinder head cover. The cam spray plate defines an oil passage. The baffle plate includes a discharge hole through which oil separated from blow-by gas by the oil separation chamber is discharged. The cam spray plate includes a passage defining portion and a baffle plate portion. The passage defining portion defines the oil passage. The baffle plate portion is integrated with the passage defining portion and overlapped with the discharge hole.Type: GrantFiled: April 20, 2021Date of Patent: August 2, 2022Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHAInventor: Tatsuya Hori
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Patent number: 11326489Abstract: The present invention comprises an apparatus and method for replacing an original equipment manufacturer air-oil separator apparatus having an integral pressure control valve (“OEM-AOS” system) in a vehicle. The OEM-AOS system is disconnected from the engine air intake. The integral pressure control valve is disabled. An accumulator for collecting oil from by-pass combustion gas is connected to the OEM-AOS system. A discrete pressure control valve (“discrete-PCV”) is connected to the accumulator and to the engine air intake. The discrete-PCV is located within the vehicle at an easily accessible location so that it can be quickly accessed and replaced when necessary. The accumulator includes a sensor that is operable to send a warning signal to a vehicle operator when the vehicle needs to be serviced to remove condensed oil from the accumulator.Type: GrantFiled: December 29, 2020Date of Patent: May 10, 2022Inventor: Charles G. Brazeel
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Patent number: 11293315Abstract: A drain valve of an air-oil separator configured to separate oil aerosol from blow-by gas of an internal combustion engine is provided. The drain valve includes a floating plate adapted to close or open depending on oil flow and pressure relative to a drainpipe, and a plug that maintains the floating plate in the drainpipe and provides a flow path for oil in the drainpipe. The plug can serve a secondary function and form part of a seal recess that receives an annular seal member, such as an o-ring, to form a liquid tight seal around the drainpipe when coupled to another engine component to allow transfer of oil through the drainpipe. A related method of use is provided.Type: GrantFiled: April 14, 2021Date of Patent: April 5, 2022Assignee: Sogefi Air & Cooling USA, Inc.Inventors: Anderson Costa, Adilson Lima, Steven Dara
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Patent number: 11198493Abstract: A marine outboard motor is provided with an internal combustion engine comprising an engine block defining at least one cylinder, an air intake configured to deliver a flow of air to the at least one cylinder, a crankcase in which a crankshaft is mounted for rotation about a crankshaft axis which is substantially vertical when the marine outboard is vertical, and a crankcase ventilation system configured to vent blow-by gases from the crankcase and to supply vented blow-by gases to the air intake. The crankcase ventilation system comprises a lubricant separation chamber for separating lubricant from the blow-by gases. The lubricant separation chamber is defined by the crankcase and extends along the length of the crankcase substantially parallel to the crankshaft axis.Type: GrantFiled: February 20, 2020Date of Patent: December 14, 2021Assignee: COX POWERTRAIN LIMITEDInventor: Nile Fulker
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Patent number: 11156137Abstract: Various example embodiments relate to rotating coalescers. One embodiment includes a housing comprising a first housing section having a blowby gas inlet structured to receive crankcase blowby gases from a crankcase. The housing further comprises an oil outlet. The rotating coalescer includes an endcap and filter media. The filter media is arranged in a cylindrical shape and is coupled to and positioned between the first housing section and endcap. The filter media is structured to filter the crankcase blowby gases passing through the filter media by coalescing and separating oils and aerosols contained in the crankcase blowby gases. The rotating coalescer includes a hollow shaft extending through the housing and positioned radially inside of the filter media. The hollow shaft forms a blowby gas outlet structured to route filtered crankcase blowby gases out of the housing. The rotating coalescer further includes a drive mechanism operatively coupled to the hollow shaft.Type: GrantFiled: February 1, 2021Date of Patent: October 26, 2021Assignee: CUMMINS FILTRATION IP, INC.Inventors: Anthony Barreteau, Christopher E. Holm, Benjamin L. Scheckel, Alain Olier
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Patent number: 11136909Abstract: A head cover structure (45) for an internal combustion engine (1) comprises a head cover (4) connected to a cylinder head (3), and an auxiliary cover (44) connected to the head cover and defining a gas-liquid separation passage (74) jointly with the head cover, the gas-liquid separation passage being communicated with a crankcase chamber (11) of the internal combustion engine, and configured to separate lubricating oil from a crankcase gas drawn from the crankcase chamber, wherein the auxiliary cover is integrally formed with an intake pipe (49) internally defining a part of an intake passage (20) of the internal combustion engine, and the auxiliary cover internally defines a crankcase gas introduction passage (63) communicating the gas-liquid separation passage with an interior of the intake pipe.Type: GrantFiled: December 2, 2020Date of Patent: October 5, 2021Assignee: HONDA MOTOR CO., LTD.Inventors: Masayuki Taguchi, Kosuke Horisaki, Yoshitaka Hara, Hiroyuki Kojima
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Patent number: 11105232Abstract: A fluid conduit allowing a fluid to flow therethrough is provided, which can increase airtightness by a partition wall without reducing the accuracy of a size or a shape of an orifice provided in the partition wall. A partition wall 10 of a fluid conduit 1 is formed by joining an upper-side partition wall portion 11 and a lower-side partition wall portion 12 by welding. The lower-side partition wall portion 12 includes a joint-side portion 13 and an orifice-side portion (a wall portion 31), and while providing a joint portion 19 to the upper-side partition wall portion 11 in the joint-side portion 13, the orifice 32 is provided in the orifice-side portion, so that the joint portion 19 and the orifice 32 are disposed in a position shifted from each other when viewed from a joint direction.Type: GrantFiled: July 24, 2018Date of Patent: August 31, 2021Assignee: NIFCO INC.Inventor: Hiroyuki Nakaya
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Patent number: 11059053Abstract: A centrifugal separator structure is configured for cleaning of crankcase gases from an internal combustion engine. The centrifugal separator structure includes a separator rotor configured for rotation about a centre axis arranged inside a stationary housing. The separator rotor includes an axle member configured for connection to a shaft of a driving device. A stack of separation discs is supported on the axle member. The axle member is un-journaled inside the stationary housing when the centrifugal separator structure is separate from the driving device. Further, an assembly includes the centrifugal separator structure and a driving device.Type: GrantFiled: May 30, 2016Date of Patent: July 13, 2021Assignee: ALFDEX ABInventors: Thomas Eliasson, Peter Franzén, Torgny Lagerstedt
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Patent number: 11047274Abstract: An engine assembly includes an engine, an intake assembly, and an air-oil separator. The engine defines a combustion chamber and a crankcase. The intake assembly includes an intake manifold wherein the intake manifold is in fluid communication with the combustion chamber. The air-oil separator defines an internal passageway having a separator volume and further defining an inlet and outlet in fluid communication with the separator volume. The inlet of the air-oil separator may be in fluid communication with the crankcase while the outlet of the air-oil separator may be in fluid communication with the intake manifold. The air-oil separator further includes a fine separator disposed across the internal passageway proximate to the inlet wherein the fine separator includes a curved backplate and a front plate.Type: GrantFiled: November 14, 2018Date of Patent: June 29, 2021Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Selvaganesh P, Omesh Reshi, Jonathan C. Laursen
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Patent number: 10954833Abstract: An air cleaner includes: an air cleaner box defining a clean chamber that is placed rearward of a dirty chamber, the clean chamber receiving air which has been introduced from front into the dirty chamber and then filtered through an air cleaner element; and funnels that are to be connected to an intake port of an internal combustion engine, the funnels protruding upward into a space within the air cleaner box from a bottom wall of the air cleaner box. The air cleaner further includes a breather chamber into which blow-by gas is introduced from the internal combustion engine, the breather chamber being placed rearward of the funnels and between the funnels and a rear wall of the air cleaner box. Accordingly, the air cleaner can further promote the air-liquid separation of blow-by gas without incurring an increase in weight of the internal combustion engine.Type: GrantFiled: July 19, 2019Date of Patent: March 23, 2021Assignee: HONDA MOTOR CO., LTD.Inventors: Masahiro Kontani, Takeji Kawazumi, Toshiaki Deguchi, Shinichi Kurita, Kensuke Mori
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Patent number: 10946320Abstract: An oil separating device for separating an oil mist from a blow-by gas is arranged on a flow passage of the blow-by gas. The oil separating device includes an oil separator having an inlet formed at one end thereof and an outlet formed at another end thereof opposite to the one end; a collision wall arranged at a downstream side of the oil separator, and including an uneven portion formed on a surface thereof to face the outlet of the oil separator; and a filter arranged between the oil separator and collision wall. The oil separator is formed such that the oil mist in the blow-by gas coalesces together to form a coalesced oil mist, the filter removes the coalesced oil mist from the blow-by gas, and the collision wall separates a remained oil mist remained in the blow-by gas through the filter.Type: GrantFiled: August 10, 2017Date of Patent: March 16, 2021Assignee: NIFCO INC.Inventors: Stephen Garrett, Alex Inglis
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Patent number: 10927730Abstract: Various example embodiments relate to rotating coalescers. One embodiment includes a housing comprising a first housing section having a blowby gas inlet structured to receive crankcase blowby gases from a crankcase. The housing further comprises an oil outlet. The rotating coalescer includes an endcap and filter media. The filter media is arranged in a cylindrical shape and is coupled to and positioned between the crankcase blowby gases passing through the filter media by coalescing and separating oils and aerosols contained in the crankcase blowby gases. The rotating coalescer includes a hollow shaft extending through the housing and positioned radially inside of the filter media. The hollow shaft forms a blowby gas outlet structured to route filtered crankcase blowby gases out of the housing. The rotating coalescer further includes a drive mechanism operatively coupled to the hollow shaft.Type: GrantFiled: June 16, 2020Date of Patent: February 23, 2021Assignee: CUMMINS FILTRATION IP, INC.Inventors: Anthony Barreteau, Christopher E. Holm, Benjamin L. Scheckel, Alain Olier
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Patent number: 10851691Abstract: A case for an oil mist separator comprises an inlet and an outlet through which blow-by gas flows, a separation section for separating oil mist contained in the blow-by gas, and an oil discharge section disposed at a bottom portion of the case. The oil discharge section includes a first discharge part having a first discharge hole for discharging the separated oil, and a second discharge part surrounding the first discharge hole. The second discharge part includes a reservoir for storing the oil discharged from the first discharge hole, and a second discharge hole provided at a bottom portion of the reservoir. The second discharge part further includes a passage providing fluid communication between the inside and the outside of the second discharge part.Type: GrantFiled: February 4, 2019Date of Patent: December 1, 2020Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHAInventors: Naritsune Miyanaga, Yoji Horiuchi, Hideto Morishita
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Patent number: 10718242Abstract: The combination of a gas-pressure-driven pump jet nozzle or alternatively Coanda effect nozzle with an impactor nozzle(s) in an air-oil separator for separating oil from blow-by gasses from a crankcase of an internal combustion engine, or for separating liquid aerosol from gas, in general. Such combination enhances impaction efficiency and enables operation at higher pressure differentials (or pressure drop) (“dP”) without causing excessive backpressure in the air-oil separator.Type: GrantFiled: January 25, 2018Date of Patent: July 21, 2020Assignee: CUMMINS FILTRATION IP, INC.Inventors: Peter K. Herman, Christopher E. Holm, Arun Janakiraman
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Patent number: 10711669Abstract: Various example embodiments relate to rotating coalescers. One embodiment includes a housing comprising a first housing section having a blowby gas inlet structured to receive crankcase blowby gases from a crankcase. The housing further comprises an oil outlet. The rotating coalescer includes an endcap and filter media. The filter media is arranged in a cylindrical shape and is coupled to and positioned between the first housing section and endcap. The filter media is structured to filter the crankcase blowby gases passing through the filter media by coalescing and separating oils and aerosols contained in the crankcase blowby gases. The rotating coalescer includes a hollow shaft extending through the housing and positioned radially inside of the filter media. The hollow shaft forms a blowby gas outlet structured to route filtered crankcase blowby gases out of the housing. The rotating coalescer further includes a drive mechanism operatively coupled to the hollow shaft.Type: GrantFiled: April 25, 2017Date of Patent: July 14, 2020Assignee: CUMMINS FILTRATION IP, INC.Inventors: Anthony Barreteau, Christopher E. Holm, Benjamin L. Scheckel, Alain Olier
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Patent number: 10677121Abstract: An oil and air separator includes a first housing including a central chamber therein, the central chamber divided into a first outer portion and a second inner portion by a barrier; a filter material disposed between the first outer portion and the second inner portion; a cap directly coupled to the first housing, the cap including a first lumen therethrough, the first lumen including a first end disposed at the second inner portion; an extension portion including a second lumen therethrough; and a coupler removably coupling the cap and the extension portion.Type: GrantFiled: August 6, 2019Date of Patent: June 9, 2020Inventor: Joe Mainiero
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Patent number: 10641216Abstract: The present disclosure relates to a structure for preventing freezing of moisture contents within a blow-by gas in an intake manifold, capable of preventing the blow-by gas introduced into the manifold from freezing even under a low temperature environment. The structure includes a positive crankcase ventilation (PCV) channel into which the blow-by gas is introduced, an insulating member having a first side and a second side that communicate with each other and inserted into the PCV channel, and a PCV nipple having a first end and a second end that communicate with each other and inserted into the insulating member to guide the blow-by gas. The insulating member includes an outer peripheral surface in contact with an inner peripheral surface of the PCV channel and an inner peripheral surface in contact with an outer peripheral surface of the PCV nipple to surround the peripheral surface of the PCV nipple.Type: GrantFiled: December 27, 2018Date of Patent: May 5, 2020Assignee: HYUNDAI KEFICO CORPORATIONInventors: Min Ki Kim, Chan Karam Na, Hyung Wook Kim
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Patent number: 10544719Abstract: An internal combustion engine includes: a cylinder having a combustion chamber formed at an upper side thereof and accommodating a piston to be reciprocally movable; a crankcase provided below the cylinder and accommodates a crankshaft; and a blow-by gas passageway recirculating blow-by gas, which leaks into the crankcase from the combustion chamber, to the combustion chamber through an intake system, in which an inner surface portion of the crankcase is provided with a blow-by gas intake part, and the blow-by gas intake part includes a protruding portion protruding in a direction in which the crankshaft extends, and the intake port opened in the protruding direction is formed at a tip end portion of the protruding portion.Type: GrantFiled: February 1, 2018Date of Patent: January 28, 2020Assignee: AISIN SEIKI KABUSHIKI KAISHAInventors: Yoshiyuki Kawai, Yoichi Oyamada, Yoshiyuki Suzuki, Akihiro Yamashita
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Patent number: 10543436Abstract: A filter assembly includes a canister housing closable by a lid and containing a removable and replaceable filter element cartridge. The lid is part of the filter element cartridge and a single unitary component therewith, such that removal of the filter element cartridge also removes the lid, and replacement of the filter element cartridge also replaces the lid.Type: GrantFiled: June 13, 2017Date of Patent: January 28, 2020Assignee: Cummins Filtration IP, Inc.Inventors: Gérard Malgorn, Arnaud Le Ven
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Patent number: 10533471Abstract: In an internal combustion engine, the cylinder block includes a first blowby gas passage and a first oil return passage. The cylinder head includes a second blowby gas passage connecting the first blowby gas passage with a connection passage connected with a gas-liquid separator, an oil return chamber separated from a valve operating chamber and the second blowby gas passage by first and second partition walls, respectively, and provided with a first oil return hole connected with the gas-liquid separator, and a second oil return passage connecting the valve operating chamber with the first oil return passage. The first partition wall is formed with a second oil return hole connecting the oil return chamber with the valve operating chamber. The second partition wall is formed with a ventilation hole connecting the oil return chamber with the second blowby gas passage at a higher position than the second oil return hole.Type: GrantFiled: June 2, 2017Date of Patent: January 14, 2020Assignee: HONDA MOTOR CO., LTD.Inventors: Yukio Konishi, Kazushi Tada
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Patent number: 10526941Abstract: A positive crankcase ventilation gas diversion and reclamation system comprises a positive crankcase ventilation gas diversion line to divert oil laden positive crankcase ventilation gases from the air intake manifold of an internal combustion engine. A positive crankcase ventilation gas diversion line directs oil laden positive crankcase ventilation gases into a vapor headspace of a fuel tank. A pressure sensor measures a vapor pressure in a vapor headspace of a fuel tank, and a fuel tank vent valve is operative with a fuel tank vent line. A controller actuates the fuel tank vent valve into an open position and discharges fuel enriched vapor to the air intake manifold of the internal combustion engine. A method permits diverting positive crankcase ventilation gasses from the air intake manifold of an engine, and reclaiming oil laden fuel components and/or particulates from positive crankcase ventilation gasses.Type: GrantFiled: June 25, 2018Date of Patent: January 7, 2020Inventor: Gilberto Mesa
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Patent number: 10408100Abstract: An oil and air separator includes a first housing including a central chamber therein, the central chamber divided into a first outer portion and a second inner portion by a barrier; a filter material disposed between the first outer portion and the second inner portion; a cap directly coupled to the first housing, the cap including a first lumen therethrough, the first lumen including a first end disposed at the second inner portion; an extension portion including a second lumen therethrough; and a coupler removably coupling the cap and the extension portion.Type: GrantFiled: February 20, 2019Date of Patent: September 10, 2019Inventor: Joe Mainiero
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Patent number: 10371026Abstract: An improved blow-by gas return structure minimizes the occurrence of a drawback caused by freezing at a low temperature by bringing a state where freezing minimally occurs in a blow-bay gas passage such as a pipe disposed outside an engine. The blow-by gas return structure is configured such that a blow-by gas is introduced into an intake manifold through an inner passage formed in a head cover. The blow-by gas return structure includes an outer pipe which connects a blow-by gas outlet of the head cover and a blow-by gas inlet of a main pipe of the intake manifold in a communicable manner, and a temperature elevating mechanism configured to elevate a temperature of the blow-by gas inlet. The temperature elevating mechanism is configured such that a cooling water transfer passage is formed in a portion of the blow-by gas inlet of the main pipe.Type: GrantFiled: June 9, 2017Date of Patent: August 6, 2019Assignee: KUBOTA CorporationInventors: Takahiro Tokunaga, Yusuke Tanimoto, Kazuya Hamada, Shinji Kishi, Yuzo Umeda
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Patent number: 10337368Abstract: To provide an engine device with high reliability and high safety in which a pipe conduit in a portion where a blow-by gas having leaked from a combustion chamber is merged with intake air (outdoor air) is not blocked with ice coating even in use in a cold region, especially an arctic region at ?20° C. or less, a blow-by gas mixed joint configured to introduce a blow-by gas flowing in a returning hose to an intake pipe includes a blow-by gas guide plate that defines introduction space expanding upstream and downstream of a blow-by gas inlet in an intake direction of an intake passage. The blow-by gas guide plate closes an upstream end of a part of the introduction space expanding upstream of a blow-by gas inlet and opens a downstream end of a part of the introduction space expanding downward of the blow-by gas inlet in the intake passage.Type: GrantFiled: April 14, 2016Date of Patent: July 2, 2019Assignee: Yanmar Co., Ltd.Inventors: Yu Matsui, Kunihiko Habuchi, Takeshi Bandoh
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Patent number: 10316714Abstract: A blow-by gas reduction device includes: a gas return pipe, one end of which is connected to an engine and the other end of which is connected to an intake pipe, to return a blow-by gas in the engine to an intake side; an oil separator that is connected to the gas return pipe; an oil return pipe that is connected to the oil separator and is disposed with an inclination so as to return the oil to an inside of the engine; and a check valve that is provided in the oil return pipe, wherein the oil return pipe between the oil separator and the check valve is formed such that that the oil return pipe located at the check valve side is located at a lower side everywhere as compared with the oil return pipe located at the oil separator side.Type: GrantFiled: April 19, 2018Date of Patent: June 11, 2019Assignee: ISUZU MOTORS LIMITEDInventors: Hideki Osada, Eiji Matsushima
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Patent number: 10253663Abstract: To provide an engine device with high reliability and high safety in which a pipe conduit in a portion where a blow-by gas having leaked from a combustion chamber is merged with intake air (outdoor air) is not blocked with ice coating even in use in a cold region, especially an arctic region at ?20° C. or less, a blow-by gas mixed joint configured to introduce a blow-by gas flowing in a returning hose to an intake pipe includes a blow-by gas guide plate that defines introduction space expanding upstream and downstream of a blow-by gas inlet in an intake direction of an intake passage. The blow-by gas guide plate closes an upstream end of a part of the introduction space expanding upstream of a blow-by gas inlet and opens a downstream end of a part of the introduction space expanding downward of the blow-by gas inlet in the intake passage.Type: GrantFiled: April 14, 2016Date of Patent: April 9, 2019Assignee: Yanmar Co., Ltd.Inventors: Yu Matsui, Kunihiko Habuchi, Takeshi Bandoh