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1.发明授权公开(公告)号：US11933424B2
公开(公告)日：2024-03-19
申请号：US17379630
申请日：2021-07-19
申请人： Caterpillar Inc.
发明人： Jakub M. Walczak , Prabhu Nagaraj , Kevin D. Yoder
IPC分类号： F16K41/04 , F01M9/10 , F02M35/10 , F16K31/524 , F16N7/00
CPC分类号： F16K41/04 , F01M9/10 , F02M35/10209 , F02M35/10242 , F16N7/00 , F16K31/52408 , F16N2210/00
摘要： Gas admission valve assembly includes a housing, an elongated valve guide disposed within a central bore of the housing, a valve including a valve stem slidably disposed within the valve guide and a valve head selectively engagable with a valve seat of the housing to control flow between gas entry and exit openings into a housing entry chamber. First and second stem seals are disposed at opposite ends of the valve guide in sealing engagement with the valve stem between the valve stem and the central bore of the housing distally and the valve guide proximally.
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公开(公告)号：US11781453B2
公开(公告)日：2023-10-10
申请号：US17426784
申请日：2019-02-01
发明人： Masayuki Otani , Nobuhiko Satou
摘要： Provided is an internal combustion engine having an oil circulating structure wherein oil used to lubricate valve operating members in the cylinder head drops onto an oil pan, and the oil accumulated therein is drawn up to the cylinder head again. Each on corners of the squire bottom face inside the cylinder head of the internal combustion engine, an oil dropping hole is provided to allow the oil used to lubricate valve operating members to flow thereinto. Also provided is an oil channel communicating with one or more of the oil dropping hole at the bottom thereof to guide the oil toward the driving gear transmitting the driving force of the engine.
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公开(公告)号：US11603778B2
公开(公告)日：2023-03-14
申请号：US17272834
申请日：2018-09-04
发明人： Roger Bodén
IPC分类号： F01M1/02 , F01M1/12 , F01M1/16 , F01M1/18 , F01M9/10 , F02C6/12 , F02C7/06 , F02C7/28 , F02N11/08
摘要： The present disclosure relates to an engine system (1) for a vehicle (100), comprising, an internal combustion engine (10), a lubrication system (20) arranged to lubricate the internal combustion engine (10) and a first lubrication pump (21) arranged to supply lubricant to the lubrication system (20). The first lubrication pump (21) is configured to be powered by an auxiliary power source (40), wherein the lubrication system (20) is further arranged to supply lubricant to at least one auxiliary component (30, 31) of the engine system (1) which requires to be lubricated when in use, and wherein the lubrication system (20) comprises at least one valve (23, 25) for selectively shutting off lubricant supply to the at least one auxiliary component (30, 31). The present disclosure also relates to a vehicle (100), to a method for controlling lubricant supply to an auxiliary component (30, 31) and to a control unit (70).
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公开(公告)号：US11541487B2
公开(公告)日：2023-01-03
申请号：US17387937
申请日：2021-07-28
发明人： Antonio Menonna , Frank Dautel , Almir Zahirovic
摘要： A method for producing a spray channel on a shaft tube, whereby a completed shaft tube can output fluid from within the shaft tube to outside of the shaft tube, the method may include introducing at least one through-opening with a diameter D1≥1.5 mm into the shaft tube and arranging at least one additional element in or on the at least one through-opening such that the spray channel is at least partly formed by the at least one additional element.
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公开(公告)号：US11499451B2
公开(公告)日：2022-11-15
申请号：US17527815
申请日：2021-11-16
摘要： A valve spring retainer for an internal combustion engine includes a body having a lower portion and an upper portion. The lower portion defines a radial flange and a first opening extending axially therethrough. The upper portion includes a first wall and a re-entrant lip. The first wall extends at least partially axially away from an outer perimeter edge of the radial flange. Together, the first wall and the radial flange define an open reservoir for receiving and retaining oil therein. The re-entrant lip extends from an outer end of the first wall at least partially radially inward toward a central axis of the first opening. The re-entrant lip extends over a portion of the reservoir defined by the first wall and the radial flange.
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公开(公告)号：US20220307391A1
公开(公告)日：2022-09-29
申请号：US17616962
申请日：2020-06-03
申请人： Steve Burkholder
发明人： Steve Burkholder
摘要： A head, for an internal combustion engine, is provided, the head using at least one plate to control the filling and emptying of the combustion chamber. The plate may be placed so that the movement of the plate may open or close the intake and/or exhaust ports. The timing of the opening and closing of the port can be controlled by a partial cutout in the plate.
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公开(公告)号：US11365702B2
公开(公告)日：2022-06-21
申请号：US17226439
申请日：2021-04-09
发明人： Li Li
摘要： A camshaft cover, a camshaft assembly, and a double-cylinder engine are provided. The camshaft cover has an integral structure, and includes a first shaft cover portion, a second shaft cover portion, a first connecting portion and a second connecting portion. The first connecting portion and the second connecting portion are connected between the first shaft cover portion and the second shaft cover portion, and spaced apart axially.
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公开(公告)号：US11319840B2
公开(公告)日：2022-05-03
申请号：US17267451
申请日：2019-08-07
摘要： A rocker arm assembly comprises a valve side rocker arm portion, a cam side rocker arm portion configured to selectively rotate relative to the valve side rocker arm portion, and a latch pin assembly disposed in the valve side rocker arm portion and in the cam side rocker arm portion. Portions of the latch pin assembly are configured to move so that when the cam side rocker arm portion selectively rotates, the valve side rocker arm portion switches among a full lift mode, a partial lift mode, and a lost motion lift mode.
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公开(公告)号：US11306624B2
公开(公告)日：2022-04-19
申请号：US16930886
申请日：2020-07-16
申请人： Caterpillar Inc.
IPC分类号： F01L1/14 , F01L1/08 , F01L1/46 , F01L1/18 , F01M9/10 , F02M59/10 , F02M59/02 , F01L1/26 , F01L1/20
摘要： A valve actuation system for an engine includes a rotatable camshaft, an injector actuation linkage, and a valve actuation linkage. The valve actuation linkage includes a valve lifter, a valve pushrod, and a rocker arm. At least one of a rocker arm center plane defined by the valve rocker arm or a lifter roller center plane defined by the valve lifter is spaced an offset distance from a pushrod axis, providing an increased contact width between an injector roller in the injector actuation linkage and one of a plurality of cam lobes of the camshaft. The valve lifter includes a fork defining a center plane spaced an offset distance from a center axis of the valve lifter. A rocker arm includes a screw bore offset relative to a rocker arm center plane.
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公开(公告)号：US11286817B2
公开(公告)日：2022-03-29
申请号：US17018008
申请日：2020-09-11
摘要： A rocker arm assembly comprises a valve side rocker arm portion, a cam side rocker arm portion configured to selectively rotate relative to the valve side rocker arm portion, and a latch pin assembly disposed in the valve side rocker arm portion and in the cam side rocker arm portion. A latch pin assembly is disposed for selective switching in the valve side latch bore and in the cam side latch bore. At least a portion of the latch pin assembly is configured so that when the latch pin assembly is selected to switch from a latched condition to the unlatched condition, and when the cam side rocker arm portion selectively rotates, the latch pin assembly is configured to retract from the forces of the rotation.
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