Patents Examined by Dapinder Singh
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Patent number: 11384683Abstract: A turbocharger according to an embodiment is a turbocharger including a turbine housing for housing a turbine wheel rotary driven by an exhaust gas, a bearing housing for housing a rotational shaft on which the turbine wheel is mounted, the bearing housing being adjacent to the turbine housing, and a wastegate portion including a bypass passage and a valve body, the bypass passage allowing the exhaust gas to bypass the turbine wheel, the valve body being able to adjust a flow rate of the exhaust gas flowing through the bypass passage. In the turbine housing, a scroll passage for supplying the exhaust gas to the turbine wheel is formed by casting, at least on a radially outer side of the turbine wheel. A fastening portion for fastening the turbine housing and the bearing housing is disposed on a radially outer side of the scroll passage.Type: GrantFiled: March 5, 2018Date of Patent: July 12, 2022Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.Inventors: Tsuyoshi Kitamura, Takao Yokoyama, Kunihiro Tomikawa, Makoto Ozaki
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Patent number: 11371508Abstract: An exhaust assembly and a compressor including the exhaust assembly. The exhaust assembly includes an exhaust bearing seat; an intake cavity is provided at an intake end of the exhaust bearing seat; an exhaust cavity is provided at an exhaust end of the exhaust bearing seat; the intake cavity and the exhaust cavity are staggered with each other in the axial direction of the exhaust bearing seat; the exhaust bearing seat is provided with a flow passage for connecting the intake cavity with the exhaust cavity; and an oil separation structure is provided in the exhaust cavity.Type: GrantFiled: August 30, 2018Date of Patent: June 28, 2022Assignees: GREE ELECTRIC APPLIANCES (WUHAN) CO., LTD, GREE ELECTRIC APPLIANCES, INC. OF ZHUHAIInventors: Cong Cao, Tianyi Zhang, Yushi Bi
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Patent number: 11371507Abstract: An oil-injected multistage compressor device that comprises at least one low-pressure stage compressor element (2) with an inlet (4a) and an outlet (5a) and a high-pressure stage compressor element (3) with an inlet (4b) and an outlet (5b), whereby the outlet (5a) of the low-pressure stage compressor element (2) is connected to the inlet (4b) of the high-pressure stage compressor element (3) via a conduit (6), characterized in that an intercooler (9) is provided between the low-pressure stage compressor element (2) and the high-pressure stage compressor element (3) in the aforementioned conduit (6) and that the compressor device (1) is also equipped with a restriction (10) for limiting the amount of oil injected in the low-pressure stage compressor element (2).Type: GrantFiled: September 24, 2019Date of Patent: June 28, 2022Assignee: ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAPInventors: Stijn Broucke, Pieter De Schamphelaere
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Patent number: 11359565Abstract: When it is determined that control of warm-up of a catalyst is necessary at the time of start of an engine, an ECU starts warm-up control. Initially, the ECU performs first processing for a first set time period. In the first processing, the ECU sets the engine to an idle state and fully opens a waste gate valve. When the first set time period has elapsed since the first processing was started, the ECU performs second processing. In the second processing, the ECU sets the engine to a prescribed rotation speed and fully closes the waste gate valve. When a second set time period has elapsed since the second processing was started, the ECU quits the second processing and quits warm-up control.Type: GrantFiled: April 7, 2020Date of Patent: June 14, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Koichi Yonezawa, Satoshi Yoshizaki, Osamu Maeda, Daigo Ando, Yoshikazu Asami, Kenji Itagaki, Shunsuke Oyama, Koichiro Muta
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Patent number: 11359630Abstract: A screw compressor for a utility vehicle includes at least one housing, at least one housing cover and at least one rotor housing. At least one seal is provided, wherein, when assembled, there is an oil sump in the housing, and the seal is arranged between the housing cover and the rotor housing and projects out of the oil sump with respect to the assembled state. The seal is formed as a sealing plate and has multiple passage openings.Type: GrantFiled: September 19, 2017Date of Patent: June 14, 2022Assignee: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbHInventors: Gilles Hebrard, Jean-Baptiste Marescot, Joerg Mellar, Thomas Weinhold
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Patent number: 11359629Abstract: A motor operated compressor according to the present embodiment may include a main housing; an electric motor unit; a rotation shaft; a fixed scroll coupled to an inner space of the main housing; an orbiting scroll provided that performs an orbiting movement with respect to the fixed scroll; a rear housing provided on an opposite side to the fixed scroll with the orbiting scroll therebetween and coupled to the main housing, and disposed with a first space to communicate with a discharge side of the compression chamber; and a first sealing portion provided to surround the first space to form a second space on an outer edge of the first space, wherein the second space includes a first region and a second region in fluid communication with each other. Accordingly, a horizontal motor operated compressor in which a frame and a fixed scroll are integrated may be provided.Type: GrantFiled: September 4, 2020Date of Patent: June 14, 2022Assignee: LG ELECTRONICS INC.Inventors: Honghee Park, Junghoon Park, Kyoungjun Park, Byeongchul Lee
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Patent number: 11346256Abstract: A method of generating electric power includes expanding a flow of exhaust gas from a combustion process as the exhaust gas passes through a turbo-expander disposed on a turbo-crankshaft. The flow of exhaust gas from the turbo-expander is routed through an absorber section of an open cycle absorption chiller system. Water from the exhaust gas is absorbed via a first refrigerant solution disposed in the absorber section as the exhaust gas passes through the first refrigerant solution and out of the absorber section. The flow of exhaust gas from the absorber section is compressed as the exhaust gas passes through a turbo-compressor disposed on the turbo-crankshaft. Electrical power is generated from a bottoming cycle generator disposed on the turbo-crankshaft.Type: GrantFiled: September 27, 2021Date of Patent: May 31, 2022Assignee: SCUDERI GROUP, INC.Inventor: Salvatore C. Scuderi
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Patent number: 11339711Abstract: The invention relates to a method for operating an internal combustion engine (100) having an exhaust-gas turbocharger (5, 10, 15) for compressing the air fed to the internal combustion engine (100), wherein a drive power of a turbine (10) of the exhaust-gas turbocharger (5, 10, 15) in an exhaust tract (20) of the internal combustion engine (100) is changed through variation of a turbine geometry of the turbine (10), wherein, in a first control algorithm (I), a setpoint charge pressure (pLSoll) at the outlet of the compressor (5) of the exhaust-gas turbocharger (5, 10, 15) in the air feed tract (50) upstream of the combustion motor (55) is controlled in a manner dependent on a setpoint exhaust-gas back pressure (pT1Soll) to be set in an exhaust tract (20) downstream of the combustion motor (55) upstream of the turbine (10) of the internal combustion engine (100), wherein the setpoint charge pressure (pLSoll) is assigned an opening cross-sectional area of the turbine (10), which is controlled, by means of an aType: GrantFiled: April 5, 2018Date of Patent: May 24, 2022Assignee: VOLKSWAGEN AKTIENGESELLSCHAFTInventors: Sebastian Heinken, Matthias Kreft
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Patent number: 11339712Abstract: A bottoming cycle power system includes a turbine generator and an open cycle absorption system. The turbine-generator includes a turbo-expander and turbo-compressor disposed on a turbo-crankshaft. The turbo-expander is operable to rotate the turbo-crankshaft as a flow of exhaust gas from a combustion process passes through the turbo-expander. The turbo-compressor is operable to compress the flow of exhaust gas after the exhaust gas passes through the turbo-expander. The open cycle absorption chiller system includes an absorber section that is operable to receive the flow of exhaust gas from the turbo-expander. The absorber section includes a first refrigerant solution that is operable to absorb water from the exhaust gas as the exhaust gas passes through the first refrigerant solution. The absorber section is also operable to route the flow of exhaust gas to the turbo-compressor after the flow of exhaust gas has passed through the first refrigerant solution.Type: GrantFiled: June 25, 2021Date of Patent: May 24, 2022Assignee: SCUDERI GROUP, INC.Inventor: Salvatore C. Scuderi
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Patent number: 11339783Abstract: A pump housing structure of a three-axis multi-stage Roots pump is provided, comprising a first-stage pump housing, a second-stage pump housing and a third-stage pump housing, wherein the first-stage pump housing is provided with a first center axial hole, a first left axial hole and a first right axial hole; a fixed bearing end cover is mounted on the side of the first-stage pump housing, three fixed bearing chambers are provided on the surface of the fixed bearing end cover; the second-stage pump housing is provided with a second center axial hole, a second left axial hole and a second right axial hole, the third-stage pump housing is provided with a third center axial hole, a third left axial hole and a third right axial hole, and the end surface at the outer side of the third-stage pump housing is fixedly mounted with a non-driving end bearing end cover. The present invention can accommodate and fix three axes through three fixed bearing chambers, respectively.Type: GrantFiled: December 7, 2019Date of Patent: May 24, 2022Assignee: OVG VACUUM TECHNOLOGY (SHANGHAI) CO., LTD.Inventors: Yi Rong, Yue Li, Miaole Shen
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Patent number: 11333106Abstract: The invention relates to an internal combustion engine with an air intake system and an exhaust system is embodied as an internal combustion engine, in particular a gasoline engine, that is charged by means of an exhaust gas turbocharger. At least one three-way catalytic converter is arranged in the exhaust system of the internal combustion engine. Furthermore, a low-pressure exhaust gas recirculation system is provided that connects the exhaust system downstream from a turbine of the exhaust gas turbocharger and upstream from the at least one three-way catalytic converter to the air intake system upstream from a compressor of the exhaust gas turbocharger. The invention further relates to a method for exhaust aftertreatment of such an internal combustion engine.Type: GrantFiled: December 10, 2019Date of Patent: May 17, 2022Assignee: VOLKSWAGEN AKIIHNGESELLSCHAFTInventors: Falk-Christian Baron Von Ceumern-Lindenstjerna, Christoph Nee, Sebastian Gehrke, Mathias Hauptvogel
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Patent number: 11333148Abstract: A screw compressor according to an embodiment includes a rotor casing, a pair of screw rotors disposed in the rotor casing and engaging with each other, and a movable portion disposed so as to be movable in a rotor shaft direction of the pair of screw rotors. The movable portion includes liquefied liquid supply ports capable of supplying a liquefied liquid of a compressed gas toward tooth groove spaces formed by the pair of screw rotors.Type: GrantFiled: October 9, 2018Date of Patent: May 17, 2022Assignee: MAYEKAWA MFG. CO., LTD.Inventors: Yoshifusa Kubota, Takayuki Kishi, Keiji Kitahara
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Patent number: 11333087Abstract: A method for controlling a turbocharger system fluidly connected to an exhaust manifold of a combustion engine and an exhaust after treatment system. The turbocharger system comprises a turbocharger turbine operable by exhaust gases from the exhaust manifold, and a tank with pressurized gas, the tank being fluidly connectable to the turbocharger turbine. The method comprises the steps of: determining a NOx parameter being indicative of, or correlated to, NOx emissions from the exhaust after treatment system; and injecting pressurized gas from the tank to drive the turbocharger turbine based on the determined NOx parameter, wherein a determined NOx parameter above a pre-defined first threshold determines that pressurized gas from the tank is injected.Type: GrantFiled: November 24, 2017Date of Patent: May 17, 2022Assignee: VOLVO TRUCK CORPORATIONInventors: Marcus Olsén, Johan Larsson
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Patent number: 11326493Abstract: The present disclosure describes methods for evaluating ammonia storage capacity of a close-coupled SCR unit while remaining compliant with prescribed emissions limits, methods of controlling an emission aftertreatment system including multiple SCR units and emission management systems for a vehicle including an internal combustion engine and an emission aftertreatment system that includes two or more SCR units.Type: GrantFiled: August 25, 2020Date of Patent: May 10, 2022Assignee: PACCAR INCInventors: Charles Wayne Reinhardt Swart, Cynthia Chaffin Webb, Maarten Meijer, Varun Ramesh
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Patent number: 11326604Abstract: A multi-stage positive displacement vacuum pump and a method of differentially pumping multiple vacuum chambers using such a pump is disclosed. The pump comprises a housing for housing at least one rotor mounted for rotation on a corresponding at least one shaft and for pumping gas through the multiple stages for output through an exhaust. The housing comprises a first inlet configured to admit gas to an inlet stage of said vacuum pump, and a further inlet configured to admit gas to an intermediate stage of said vacuum pump. The pump is configured such that gas admitted through each of the first and further inlets is pumped together as a combined gas flow by at least one stage of said vacuum pump downstream of said intermediate stage.Type: GrantFiled: April 4, 2019Date of Patent: May 10, 2022Assignee: Edwards LimitedInventors: Phillip North, Ian Olsen
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Patent number: 11326601Abstract: In a scroll compressor (1) provided with a fixed scroll (3) and an orbiting scroll (5), an inclined portion is provided in which the inter-facing surface distance (L) between an end plate (3a) and an end plate (5a) that face each other decreases continuously from the outer peripheral side towards the inner peripheral side. The inclined portion is configured from wall inclined portions (3b1, 5b1) in which the height of a wall (3b, 5b) decreases continuously from the outer peripheral side towards the inner peripheral side, and end plate inclined portions (3a1, 5a1) in which a tooth bottom surface is inclined in accordance with the incline of the wall inclined portions (3b1, 5b1). The inclined portion is provided across a range of no less than 180° around the center of the spiral.Type: GrantFiled: January 15, 2019Date of Patent: May 10, 2022Assignee: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.Inventors: Hajime Sato, Yoshiyuki Kimata, Takahide Ito
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Patent number: 11326598Abstract: A compressor includes: a fixed scroll; at least one discharge port; a reed valve; a valve stop; and a ventilation hole. The at least one discharge port is disposed in the fixed scroll. The reed valve is disposed in the fixed scroll so as to block the at least one discharge port. The valve stop is disposed in the fixed scroll, and restricts the lift amount of the reed valve. The ventilation hole is disposed in the valve stop. In the present aspect, the flow of refrigerant gas is smoothed to suppress the compression loss, and the force applied to the reed valve can be suppressed. As a result, the efficiency and reliability can be improved.Type: GrantFiled: October 1, 2018Date of Patent: May 10, 2022Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Hideto Oka, Daisuke Funakoshi, Akinori Fukuda, Kenji Watanabe
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Patent number: 11319870Abstract: A turbocharger control valve having an extended feedback cap for altering the performance of a variable geometry turbocharger delivering boost pressure to an engine, the extended feedback cap has an increased cap length which displaces a spool within the turbocharger control valve to alter hydraulic fluid flow through the turbocharger control valve, causing the turbocharger to delay opening a variable inlet to release exhaust pressure, also causing the turbocharger to preemptively close the variable inlet to mitigate loss of exhaust back pressure and boost pressure without a command from a turbocharger control module.Type: GrantFiled: April 13, 2021Date of Patent: May 3, 2022Inventor: Eyal Ezra
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Patent number: 11319956Abstract: The scroll compressor includes a fixed scroll; an orbiting scroll (8); a drive shaft (16); a support arrangement (5) on which is slidably mounted the orbiting scroll (8); a rotation preventing device configured to prevent rotation of the orbiting scroll (8) with respect to the fixed scroll, the rotation preventing device including orbital discs (28) respectively arranged in circular receiving holes (29) provided on the support arrangement (5), each orbital disc (28) being provided with an outer circumferential bearing surface (31) configured to cooperate with an inner circumferential bearing surface (32) provided on the respective circular receiving hole (29); and a lubrication system configured to lubricate the inner and outer circumferential bearing surfaces (32, 31) with oil supplied from an oil sump, the lubrication system including an oil reservoir (38) in which part of the oil supplied to the lubrication system is collected during operation of the scroll compressor, and a plurality of lubrication passagType: GrantFiled: June 25, 2020Date of Patent: May 3, 2022Assignee: Danfoss Commercial CompressorsInventors: Mickael Bron, Rémi Bou Dargham, Yusong Sun
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Patent number: 11319946Abstract: A system for supplementing the electric power needed by a pump jack electric motor, thereby reducing the electric power purchased from the local utility or power supplier. The system comprises a solar photovoltaic system, or other forms of renewable energy, and regenerated power from the electric motor or drive. The system can be both “on-grid” and “off-grid.” Battery banks and capacitor banks may be used to store energy.Type: GrantFiled: January 8, 2019Date of Patent: May 3, 2022Assignee: Raptor Lift Solutions, LLCInventor: Kavan Graybill