Vapor Treated Before Mixing With Combustible Mixture (e.g., Cooling) Patents (Class 123/573)
  • Patent number: 11326489
    Abstract: 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: Grant
    Filed: December 29, 2020
    Date of Patent: May 10, 2022
    Inventor: Charles G. Brazeel
  • Patent number: 11293315
    Abstract: 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: Grant
    Filed: April 14, 2021
    Date of Patent: April 5, 2022
    Assignee: Sogefi Air & Cooling USA, Inc.
    Inventors: Anderson Costa, Adilson Lima, Steven Dara
  • Patent number: 11198493
    Abstract: 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: Grant
    Filed: February 20, 2020
    Date of Patent: December 14, 2021
    Assignee: COX POWERTRAIN LIMITED
    Inventor: Nile Fulker
  • Patent number: 11156137
    Abstract: 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: Grant
    Filed: February 1, 2021
    Date of Patent: October 26, 2021
    Assignee: CUMMINS FILTRATION IP, INC.
    Inventors: Anthony Barreteau, Christopher E. Holm, Benjamin L. Scheckel, Alain Olier
  • Patent number: 11136909
    Abstract: 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: Grant
    Filed: December 2, 2020
    Date of Patent: October 5, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Masayuki Taguchi, Kosuke Horisaki, Yoshitaka Hara, Hiroyuki Kojima
  • Patent number: 11105232
    Abstract: 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: Grant
    Filed: July 24, 2018
    Date of Patent: August 31, 2021
    Assignee: NIFCO INC.
    Inventor: Hiroyuki Nakaya
  • Patent number: 11059053
    Abstract: 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: Grant
    Filed: May 30, 2016
    Date of Patent: July 13, 2021
    Assignee: ALFDEX AB
    Inventors: Thomas Eliasson, Peter Franzén, Torgny Lagerstedt
  • Patent number: 11047274
    Abstract: 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: Grant
    Filed: November 14, 2018
    Date of Patent: June 29, 2021
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Selvaganesh P, Omesh Reshi, Jonathan C. Laursen
  • Patent number: 10954833
    Abstract: 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: Grant
    Filed: July 19, 2019
    Date of Patent: March 23, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Masahiro Kontani, Takeji Kawazumi, Toshiaki Deguchi, Shinichi Kurita, Kensuke Mori
  • Patent number: 10946320
    Abstract: 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: Grant
    Filed: August 10, 2017
    Date of Patent: March 16, 2021
    Assignee: NIFCO INC.
    Inventors: Stephen Garrett, Alex Inglis
  • Patent number: 10927730
    Abstract: 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: Grant
    Filed: June 16, 2020
    Date of Patent: February 23, 2021
    Assignee: CUMMINS FILTRATION IP, INC.
    Inventors: Anthony Barreteau, Christopher E. Holm, Benjamin L. Scheckel, Alain Olier
  • Patent number: 10851691
    Abstract: 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: Grant
    Filed: February 4, 2019
    Date of Patent: December 1, 2020
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Naritsune Miyanaga, Yoji Horiuchi, Hideto Morishita
  • Patent number: 10718242
    Abstract: 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: Grant
    Filed: January 25, 2018
    Date of Patent: July 21, 2020
    Assignee: CUMMINS FILTRATION IP, INC.
    Inventors: Peter K. Herman, Christopher E. Holm, Arun Janakiraman
  • Patent number: 10711669
    Abstract: 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: Grant
    Filed: April 25, 2017
    Date of Patent: July 14, 2020
    Assignee: CUMMINS FILTRATION IP, INC.
    Inventors: Anthony Barreteau, Christopher E. Holm, Benjamin L. Scheckel, Alain Olier
  • Patent number: 10677121
    Abstract: 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: Grant
    Filed: August 6, 2019
    Date of Patent: June 9, 2020
    Inventor: Joe Mainiero
  • Patent number: 10641216
    Abstract: 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: Grant
    Filed: December 27, 2018
    Date of Patent: May 5, 2020
    Assignee: HYUNDAI KEFICO CORPORATION
    Inventors: Min Ki Kim, Chan Karam Na, Hyung Wook Kim
  • Patent number: 10543436
    Abstract: 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: Grant
    Filed: June 13, 2017
    Date of Patent: January 28, 2020
    Assignee: Cummins Filtration IP, Inc.
    Inventors: Gérard Malgorn, Arnaud Le Ven
  • Patent number: 10544719
    Abstract: 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: Grant
    Filed: February 1, 2018
    Date of Patent: January 28, 2020
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Yoshiyuki Kawai, Yoichi Oyamada, Yoshiyuki Suzuki, Akihiro Yamashita
  • Patent number: 10533471
    Abstract: 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: Grant
    Filed: June 2, 2017
    Date of Patent: January 14, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yukio Konishi, Kazushi Tada
  • Patent number: 10526941
    Abstract: 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: Grant
    Filed: June 25, 2018
    Date of Patent: January 7, 2020
    Inventor: Gilberto Mesa
  • Patent number: 10408100
    Abstract: 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: Grant
    Filed: February 20, 2019
    Date of Patent: September 10, 2019
    Inventor: Joe Mainiero
  • Patent number: 10371026
    Abstract: 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: Grant
    Filed: June 9, 2017
    Date of Patent: August 6, 2019
    Assignee: KUBOTA Corporation
    Inventors: Takahiro Tokunaga, Yusuke Tanimoto, Kazuya Hamada, Shinji Kishi, Yuzo Umeda
  • Patent number: 10337368
    Abstract: 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: Grant
    Filed: April 14, 2016
    Date of Patent: July 2, 2019
    Assignee: Yanmar Co., Ltd.
    Inventors: Yu Matsui, Kunihiko Habuchi, Takeshi Bandoh
  • Patent number: 10316714
    Abstract: 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: Grant
    Filed: April 19, 2018
    Date of Patent: June 11, 2019
    Assignee: ISUZU MOTORS LIMITED
    Inventors: Hideki Osada, Eiji Matsushima
  • Patent number: 10253663
    Abstract: 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: Grant
    Filed: April 14, 2016
    Date of Patent: April 9, 2019
    Assignee: Yanmar Co., Ltd.
    Inventors: Yu Matsui, Kunihiko Habuchi, Takeshi Bandoh
  • Patent number: 10196946
    Abstract: A check valve is described for a gas-carrying line in a motor vehicle, in particular for the venting of a crankcase, having a valve housing which has a valve seat, a valve disk which abuts against the valve seat in a closed position and an electric heating device for heating the valve housing, wherein the valve disk is integrally configured with a spring and fastening section that is fixed to the valve housing and generates a closing force that presses the valve disk against the valve seat, and wherein the valve housing has a metal body, which forms the valve seat and on its outside forms a thermal coupling surface, on which the electric heating device sits and which extends together with the electric heating device beyond the valve seat both in the flow direction and in the opposite direction.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: February 5, 2019
    Assignee: EICHENAUER HEIZELEMENTE GMBH & CO. KG
    Inventor: Andreas Maas
  • Patent number: 10184370
    Abstract: An oil separation device of an internal combustion engine includes a gas liquid separation chamber defined by a head cover of the engine, a gas introduction passage connected to a first end of the gas liquid separation chamber at an angle to the first direction, a gas inlet formed in an end of the gas introduction passage remote from the gas liquid separation chamber, and a gas outlet formed in a second end of the gas liquid separation chamber. Oil splashed from a valve actuating chamber of the engine is prevented from entering the oil separation device, and oil mist can be effectively separated from blow by gas.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: January 22, 2019
    Inventors: Mayuka Odo, Masahiro Nakajima, Kazuhiro Aoki
  • Patent number: 10151225
    Abstract: An internal combustion engine includes an engine block defining a plurality of cylinders each receiving a piston. A crankcase extends from the engine block and supports a crankshaft drivingly connected to the pistons and including a chamber enclosed by a wall portion that defines a first blow-by flow passage and first and second drain passages therethrough. An oil sump mounted to the crankcase. A first oil separator is mounted to the wall of the crankcase in communication with the first blow-by flow passage and the first drain passage and defining a second blow-by flow passage therethrough and a third drain passage extending therethrough in communication with the second drain passage. A second oil separator mounted to the first oil separator in communication with the third drain passage and defining a third blow-by flow passage in communication with the second blow-by flow passage.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: December 11, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Ko-Jen Wu, Jason C. Melecosky
  • Patent number: 10100791
    Abstract: A method and a system to eliminate the flow of accumulated liquid water from the intake manifold into the cylinders of an internal combustion engine are disclosed. Particularly, the disclosed inventive concept provides a negative draft to the top of a water containment feature in the form of opposed baffles. The baffles increase the minimum angle the water has to reach to overflow out of the intake manifold and into the cylinders. The angle required to overflow is a composition of gravity and the acceleration of the vehicle. If the maximum acceleration (and thus maximum water angle) is less than the designed negative draft overflow protection, there will not be expected overflow. The water containment reservoir includes two opposed side walls, a front wall, a back wall, and a base. Each side wall has an upper end. The baffle extends from the upper end of at least one side wall.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: October 16, 2018
    Assignee: Ford Global Technologies, LLC
    Inventor: Gary Nola
  • Patent number: 10066523
    Abstract: A blow-by heater includes a tube member allowing a blow-by gas to flow through, and opening in a downstream side, and the tube member is formed such that a thickness of the downstream side decreases toward an opening end.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: September 4, 2018
    Assignee: NIFCO INC.
    Inventor: Tsuyoshi Okazaki
  • Patent number: 10036290
    Abstract: A positive crankcase ventilation valve for an engine is provided with a valve body defining apertures fluidly coupling a crankcase and an intake manifold of the engine, with each aperture sized to prevent an entrained oil droplet from flowing therethrough. The valve has a valve element supported by the body to selectively cover at least one of the apertures in response to a pressure difference between the manifold and the crankcase to provide variable air flow from the crankcase to the intake manifold. A method includes, in response to an increasing absolute pressure difference between the manifold and the crankcase, passively moving a valve element to selectively cover apertures fluidly coupling the crankcase and the manifold to control an air flow from the crankcase to the intake manifold to a predetermined variable flow profile, and separating oil droplets from the air flow via the apertures.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: July 31, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Rishi Dwivedi, Katherine Jane Brewer
  • Patent number: 10012119
    Abstract: 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: Grant
    Filed: October 25, 2016
    Date of Patent: July 3, 2018
    Inventor: Gilberto Mesa
  • Patent number: 10006385
    Abstract: A positive crankcase ventilation gas diversion 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 interconnect directs oil laden positive crankcase ventilation gases into an oil-vapor diffuser which at least partially separates crankcase oils from the oil laden positive crankcase ventilation gases. A pressure sensor measures a vapor pressure in a 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, thereby maintaining the vapor pressure in the headspace of the fuel tank within a predetermined pressure range.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: June 26, 2018
    Inventor: Gilberto Mesa
  • Patent number: 10006325
    Abstract: Provide is a PCV valve which can be quickly defreezed and provides a favorable sealing to the heater against the blow-by gas. The PCV valve (2) comprises a housing (6) defining a flow passage (4) for blow-by gas, a valve member (30) positioned in the flow passage to cooperate with a valve seat (18) formed in the housing, a spring (38) biasing the valve member toward the valve seat, a heat transmission member (40) including a heat dissipating part (42) surrounding the valve member, and a heating unit (52) including a heating element (66) for heating the heat transmission member, the heating element being separated from the flow passage in an air tight manner.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: June 26, 2018
    Assignee: Nifco Inc.
    Inventors: Tsuyoshi Okazaki, Motoharu Takai
  • Patent number: 9901933
    Abstract: This separator device includes a separation chamber having an inlet and an outlet, an oil recovery chamber coupled to the separation chamber, an emitter electrode, a collector electrode, and an electronic unit connected to the emitter and collector electrodes, for during a charging phase, bringing the emitter electrode to a negative potential, so as to negatively charge oil drops, and bringing said at least one collector electrode to a zero or positive potential, so as to collect negatively charged oil drops. The separator device further includes a pressure-drop generating member in the separation chamber. The oil recovery chamber is coupled to the downstream portion of the separation chamber via a vacuuming port, so that the oil recovery chamber is depressed.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: February 27, 2018
    Assignee: MGI COUTIER
    Inventors: Pascal Guerry, Ludovic Serrurier, Adrien Eustache
  • Patent number: 9765721
    Abstract: Disclosed is a method for detecting disconnection of a closed breather 18 separating and recovering oil mist from blow-by gas 17 extracted from an engine 1 to return the blow-by gas through a gas return pipe 19 to an intake pipe 5. Under condition of no exhaust gas 9 recirculation being conducted, a mass flow rate of in-cylinder working gas is calculated based on a boost pressure, an intake temperature of an intake manifold 7 and a rotational frequency of the engine, and whether the calculated mass flow rate is divergent from a value detected by an air flow sensor 24 is determined. When determined to be divergent, the divergence in a last determination is compared with a current divergence; if difference between the divergences is beyond a predetermined range, the gas return pipe 19 is determined to be in disconnection from the intake pipe 5.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: September 19, 2017
    Assignee: HINO MOTORS, LTD.
    Inventor: Hitoshi Nakano
  • Patent number: 9546580
    Abstract: An engine includes a crankcase; an oil sump; at least one balancing shaft mounted in a balancing tunnel of the crankcase, which includes first and second end portions and a central portion extending between the end portions; and a blow-by gas recirculation system having an inlet channel communicating with the oil sump, an outlet channel communicating with an intake manifold, a centrifugal separator arranged between said inlet and outlet channels, and a drainage channel opening into the oil sump for discharging separated liquid. The inlet channel communicates with said first end portion, and said centrifugal separator is housed in said second end portion and is driven in rotation by said balancing shaft. The outlet channel communicates with a gas outlet of said centrifugal separator, whereby, during operation, blow-by gas flows successively through the central portion and the centrifugal separator in a path from the inlet to the outlet channel.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: January 17, 2017
    Assignee: Fiat Group Automobiles S.p.A.
    Inventor: Giampaolo Galeazzi
  • Patent number: 9540975
    Abstract: An oil mist separator includes at least one filter device for separating off liquid suspended particles from a carrier gas. The filter device includes a housing having at least one inlet opening for introducing the carrier gas and at least one outlet opening for discharging the filtered carrier gas. Arranged in the housing is at least one filter insert through which the carrier gas can flow along a flow direction. There is also provided at least one guide device by which the flow path can be deflected. The at least one filter device can be arranged releasably in the oil mist separator, and a seal is provided preferably between a first fixing surface of the oil mist separator and a second fixing surface, to be fixed thereto, of the filter device.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: January 10, 2017
    Assignee: GE JENBACHER GMBH & CO OG
    Inventors: Guenther Wall, Johannes Laubach, Wolfgang Madl, Thomas Trenkwalder
  • Patent number: 9528427
    Abstract: An intake system for an engine is provided. The system includes a chamber room formed in an intermediate section of an intake passage, an intercooler disposed inside the chamber room, an intake air inlet chamber formed in a part of the chamber room upstream of the intercooler, an introducing portion for introducing intake air into the intake air inlet chamber, and a baffle plate dividing the intake air inlet chamber into an upstream space communicating with the introducing portion and a downstream space communicating to the introducing portion via the upstream space. When the engine is in a low engine load operation, the intake air mainly flows through the upstream space to an intercooler side via the baffle plate, and when the engine is in a high engine load operation, the intake air flows through the upstream and downstream spaces to the intercooler side via the baffle plate.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: December 27, 2016
    Assignee: Mazda Motor Corporation
    Inventors: Tatsuro Nakasugi, Fusatoshi Tanaka, Takao Kadoishi, Nozomu Hachiya
  • Patent number: 9422842
    Abstract: A crankcase ventilation system for an engine that may include a control valve and a disconnect fitting disposed in a conduit between the crankcase and an intake system. The disconnect fitting may include a tube wall, where the inside of the tube wall may have a support. The support may include at least one flow gap, and a plunger opening. The inside of the tube wall may have a plunger seat spaced apart from the support. A plunger may include a stem positioned in the plunger opening, that may be configured to translate in the opening. The plunger may include a head configured to engage the plunger seat to close flow. The conduit may include a segment configured for insertion into the disconnect to engage and unseat the plunger from the plunger seat to open flow.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: August 23, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: John Mark Lorentz, Marie-Christine G. Jones
  • Patent number: 9308481
    Abstract: An engine crankcase breather includes a housing having a lower end including an inlet opening and an upper end including an outlet opening. The inlet opening lies in a horizontal plane and the outlet opening lies in a vertical plane. A mesh filter is positioned within the housing and includes opposing inlet and outlet faces defining a mesh filter thickness. The inlet and outlet faces are parallel to the inlet opening and are positioned below a central axis through the outlet opening. A bottom wall of the housing defines a portion of the lower end and includes a downward slope toward a lip defining the inlet opening. The mesh filter is spaced above the bottom wall. The engine crankcase breather also includes a plurality of oil return openings through the lip.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: April 12, 2016
    Assignee: Caterpillar Inc.
    Inventors: Seth Slaughter, Shailendra Kardile, Kathleen Nackers, Andreia Balan, Jason Rex Dare, Eric Nathan Lucas, Christopher David Moore
  • Patent number: 9243529
    Abstract: An object of the invention is to improve space efficiency, while ensuring a desired blow-by gas processing performance. As gas routes that connect a crankcase and each of intake passages, a first gas route and a second gas route connected to respective throttle upstream parts of the intake passages on the upstream side of each throttle valve for each bank, and a third gas route connected to a throttle downstream part of the intake passage for one of the banks are provided. Separators are disposed in the respective gas routes, for separating oil mist from blow-by gas. Only the first separator having a comparatively large capacity is disposed in the first bank on the side where a crankshaft rotates upward from the bottom. The second and third separators are both juxtaposed to each other in the second bank on the side where the crankshaft rotates downward from the top.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: January 26, 2016
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Shunsuke Nakama, Nobuhito Arai, Takahiro Ohnishi
  • Patent number: 9221001
    Abstract: An oil mist separator includes: a separator body having a gas flow path; a gas introduction part introducing the blow-by gas into the separator body; a gas discharge part discharging the blow-by gas from the separator body; a separation unit separating oil from the blow-by gas; dams provided on the bottom wall of the separator body downstream of the separation unit in the gas flow path and configured to block the oil separated from flowing to the downstream side; and an oil discharge part provided upstream of the dams in the gas flow path and configured to discharge the oil separated from the separator body, wherein the dams are formed along the gas flow path so as to alternately extend from the pair of side walls, and the dams extend such that tip ends of the dams are located beyond a center of the gas flow path.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: December 29, 2015
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventor: Yoji Horiuchi
  • Patent number: 9181853
    Abstract: Methods and systems are provided for removing condensate from a charge air cooler. Condensate may be drained from the charge air cooler and introduced into a positive crankcase ventilation flow or an engine oil sump. Introducing condensate into the engine oil sump may be controlled based on conditions of the engine oil sump and stored condensate.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: November 10, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Thomas G. Leone, Michael Damian Czekala
  • Patent number: 9162174
    Abstract: According to the present disclosure, air cleaner assemblies, components, features and methods are described. A filter cartridge is characterized, that can be conveniently used as part of the system ensuring that a proper cartridge is installed in the housing, in a proper radial orientation and in a manner such that cartridge rotation is inhibited, in spite of the use of a radial seal. The cartridge can be configured to also be used with a housing that includes a utility conduit in an exterior surface thereof. Advantageous features and methods of assembly and use are described.
    Type: Grant
    Filed: May 17, 2011
    Date of Patent: October 20, 2015
    Assignee: Donaldson Company, Inc.
    Inventor: Michel Baseotto
  • Patent number: 9151195
    Abstract: A crankcase for an internal combustion engine, having a suction arrangement which is assigned to the crankcase and is configured for ventilating the crankcase of blow-by gas, in particular a gas/oil mixture, to produce a limited vacuum in the crankcase is disclosed. The crankcase has at least one dividing wall which is configured to feed blow-by gas and to separate oil. A ventilating housing part and a carrier housing part which is arranged above the ventilating housing part in included in the crankcase. The dividing wall is formed between the ventilating housing part and the carrier housing part and a suction arrangement is formed in the form of a suction jet pump which is configured for extracting oil from the dividing wall.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: October 6, 2015
    Assignee: MTU Friedrichshafen GmbH
    Inventors: Mathias Stätter, Josef Walter Hausknecht, Robby Gerbeth
  • Patent number: 9080478
    Abstract: Embodiments may provide an oil separator that may include a reservoir attached to a bottom of the oil separator to collect oil that passes from the oil separator. An outlet may be located on the reservoir and may be positioned to allow oil at or above the outlet to overflow from the reservoir and to flow, or drip, toward an engine cylinder head. The oil separator may also include a tube located at least partially inside the reservoir formed within the bottom to pass the oil into the reservoir.
    Type: Grant
    Filed: January 21, 2013
    Date of Patent: July 14, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Tom Elsner, David Alan Beaton
  • Patent number: 9027536
    Abstract: Methods and systems are provided for generating vacuum from crankcase ventilation flow. During both directions of gas flow between an engine intake manifold and a crankcase, gases are directed through one or more aspirators to produce vacuum. The drawn vacuum may then be used to operate various engine vacuum actuators.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: May 12, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Ross Dykstra Pursifull, Nicholas Dashwood Crisp, Joseph Norman Ulrey
  • Publication number: 20150114368
    Abstract: An internal combustion engine includes a cylinder block, an auxiliary machinery attachment member arranged at a side wall of the cylinder block, the auxiliary machinery attachment member to which an auxiliary machine is attached, and a separator portion disposed in a void between the cylinder block and the auxiliary machinery attachment member, the separator portion being provided as a separate member from the cylinder block and the auxiliary machinery attachment member to perform gas-liquid separation on blow-by gas.
    Type: Application
    Filed: October 20, 2014
    Publication date: April 30, 2015
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Hirotaka KURITA, Yoshiyuki KAWAI, Seiichi SHIIGI, Naoki EMORI
  • Patent number: 9010285
    Abstract: An assembly for use in a crankcase ventilation system of an internal combustion engine includes a shutter arrangement that is constructed and arranged for preventing that residual gases and/or vapors out of a crankcase flow into an air intake system during a period of time that starts at shut down of the engine and ends after it has been re-started. The assembly also includes an outlet that is constructed and arranged for removing at least a substantial part of the residual gases and/or vapors from the engine as long as it is shut down.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: April 21, 2015
    Assignee: Vialle Alternative Fuel Systems B.V.
    Inventor: Servatius Alfons Maria Jaasma