-
公开(公告)号：US12025036B2
公开(公告)日：2024-07-02
申请号：US17797197
申请日：2021-02-05
Applicant: Eaton Intelligent Power Limited
Inventor： Nikhil Kishor Saggam , Matthew Adrian Vance
CPC classification number: F01L1/182 , F01L1/146 , F01L1/46 , F01L13/0005 , F01L2001/186 , F01L2001/467 , F01L2013/001
Abstract: A valvetrain assembly comprises a deactivatable rocker arm where a pushrod is configured to transfer a valve lift profile through to a valve end to a valve or valve bridge. A castellation assembly in a carrier and alternative two-piece rocker arm assemblies with rotary or linear actuators are shown for deactivating the transfer of the valve lift profile.
-
公开(公告)号：US11821800B2
公开(公告)日：2023-11-21
申请号：US17659582
申请日：2022-04-18
Applicant: Harbin Engineering University
Inventor： Jie Guo , Shengwei Zhou , Guoan Jiang , Xinyu Zhang
CPC classification number: G01L1/16 , F01L1/146 , F01L2820/04
Abstract: The present disclosure provides a sensor for measuring cam and tappet contact force of an engine and a measuring method. The sensor comprises a force carrying element, a force transmission element, a piezoelectric element, a force bearing element, a tappet head and a guide woodruff key. Meanwhile, the present disclosure also provides a measuring method by using the sensor. The sensor is simple in mechanism and convenient to use and can realize the measurement of the cam tappet contact force in the normal direction, the tangential direction and the axial direction of the contact surface.
-
公开(公告)号：US11773757B2
公开(公告)日：2023-10-03
申请号：US17795512
申请日：2020-12-29
Inventor： Lifeng Wang , Xiuqiang Wang
CPC classification number: F01L9/10 , F01L1/146 , F01L1/181 , F01L9/12 , F01L13/06 , F02D13/04 , F01L9/16
Abstract: A compression release engine in-cylinder braking system, comprising a valve mechanism, an oil cylinder device, an oil pump device, and an oil supply device. The oil cylinder device and the oil pump device of each air cylinder communicate with each other through a pressure transmission oil circuit, which communicates with the oil supply device through a low-pressure relief valve. An air release valve is arranged at the high end of an oil circuit system. During in-cylinder braking, the air release valve is closed, an electromagnetic reversing valve is energized, engine oil having a pressure of P1 is supplied to the pressure transmission oil circuit, and a cam abuts against and pushes the oil pump device to pump high-pressure oil to the oil cylinder device, so as to push a rocker arm to open a valve, thereby achieving in-cylinder braking.
-
公开(公告)号：US20230184144A1
公开(公告)日：2023-06-15
申请号：US17996796
申请日：2021-04-21
Applicant: Eaton Intelligent Power Limited
Inventor： Nikhil SAGGAM , Siddesh KAPDI , Suhrud PUROHIT , Matthew A. VANCE
CPC classification number: F01L1/46 , F01L1/146 , F01L1/18 , F01L13/06 , F01L1/26 , F01L13/0005 , F01L2013/001 , F01L2013/101 , F01L2001/467
Abstract: A lost motion mechanism can comprise a castellation device, comprising a casing, an upper castellation, and a lower castellation. The casing can comprise a first linear slot and a second linear slot perpendicular to the first linear slot. Upper castellation can comprise an upper body, spaced upper teeth extending from the upper body, the spaced upper teeth forming spaced upper gaps therebetween, and an actuation peg extending from the upper body into the first linear slot. Lower castellation can comprise a lower body, spaced lower teeth extending from the lower body, the spaced lower teeth forming spaced lower gaps therebetween, and an anti-rotation peg extending from the lower body into the second linear slot. An actuator can be configured with the lost motion mechanism so that a movable arm comprises a forked end configured to move on the actuation peg as the movable arm swivels.
-
公开(公告)号：US11668210B2
公开(公告)日：2023-06-06
申请号：US17021924
申请日：2020-09-15
Inventor： Sandeep Namadev Kamble , John Patrick Dowell , Samir Vikas Joshi
CPC classification number: F01L1/181 , F01L1/047 , F01L1/146 , F01M9/10 , F01L2810/02
Abstract: Systems and methods for intermittent supply of lubricating oil to a tip of a rocker arm assembly. In one embodiment, a lubricating oil may be selectively to a tip of a rocker arm via oil channels aligned only during opening of a valve coupled to the tip.
-
Patent Agency Ranking
公开(公告)号：US20230151743A1
公开(公告)日：2023-05-18
申请号：US18150622
申请日：2023-01-05
Applicant: Jacobs Vehicle Systems, Inc.
Inventor： Austen METSACK , Gabriel S. ROBERTS , Thomas BENNER , Ryan D. LILLY
Abstract: Systems for valve actuation in internal combustion engines provide for control of rocker arms and other valvetrain components by utilizing biasing and stroke limited components. Such features may be implemented in any valvetrain component, including e-foot assemblies or pushrod assemblies. The biasing component may bias the cam side of a lost motion rocker toward the cam. The components may be extendable to permit a biasing mechanism to keep the valvetrain components in a controlled position at all times. Stroke limiting features may facilitate the formation of small gaps between valvetrain components during the engine cycle for improved lubrication. Stroke limiting features may also retain valvetrain components in an assembled configuration even when not installed in an engine or valve actuation system.
-
公开(公告)号：US20190136721A1
公开(公告)日：2019-05-09
申请号：US16174849
申请日：2018-10-30
Applicant: Indian Motorcycle International, LLC
Inventor： Urs Wenger , David A. Galsworthy , Brian J. Hitt
CPC classification number: F01L1/344 , F01L1/047 , F01L1/146 , F01L1/34409 , F01L1/3442 , F01L2001/054 , F01L2820/041 , F02B61/02 , F02B75/22 , F02B2075/1808
Abstract: An engine for a two-wheeled vehicle includes at least one cylinder comprising a combustion chamber and a cylinder head positioned adjacent the combustion chamber. The engine further includes a crankcase coupled to the at least one cylinder which includes a crankshaft. Additionally, the engine includes a valve train operably coupled to the crankshaft which includes at least one intake valve fluidly coupled to the combustion chamber, at least one exhaust valve fluidly coupled to the combustion chamber, at least one pushrod operably coupled to at least one of the intake valve and the exhaust valve, at least one camshaft operably coupled to the at least one pushrod and the crankshaft, and a cam phaser assembly operably coupled to the at least one camshaft and positioned generally outside an envelope of the cylinder head.
-
公开(公告)号：US20180355768A1
公开(公告)日：2018-12-13
申请号：US15992739
申请日：2018-05-30
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Andreas Biermann , Matthias Ammann
CPC classification number: F01L1/46 , F01L1/143 , F01L1/146 , F01L1/185 , F01L1/24 , F01L1/2405 , F01L1/245 , F01L2001/186 , F01L2101/00 , F01L2103/00 , F01L2810/05
Abstract: A hydraulic support element for a variable valve train of an internal combustion engine, which has a cylindrical pot-shaped housing and a hollow cylindrical piston guided for movement in this housing and whose inner end is supported by a compression spring on the base wall of the housing. The outer end extends past the housing and is formed as a hemispherical bearing head. The interior is divided into an inner supply pressure space and an outer switching pressure space that are connected by inlet openings in the cylindrical side walls of the housing and the piston with a cylinder head side supply pressure line and by a non-return valve to a high-pressure space enclosed between the inner end of the piston and the base wall of the housing, or to a cylinder head side switching pressure line and also by a central hole formed in the bearing head to a rocker arm side switching pressure channel. To prevent the entry of harmful particles into the supply pressure space and/or the switching pressure space of the piston, the piston has a ring-shaped recess in its cylindrical side wall in the area of the inlet openings on the outside in the radial direction, and a filter element constructed as a ring filter is inserted into the ring-shaped recess of the piston with an axial positive-fit connection.
-
公开(公告)号：US20180216522A1
公开(公告)日：2018-08-02
申请号：US15418398
申请日：2017-01-27
Applicant: Caterpillar Inc.
Inventor： Craig P. Hittle
CPC classification number: F02B75/22 , F01L1/026 , F01L1/047 , F01L1/146 , F01L1/18 , F01L1/181 , F01L2001/054 , F01L2105/00 , F02B67/04 , F02B2075/1848 , F02B2075/1864 , F02F7/0053 , F02M63/001
Abstract: An internal combustion engine includes a cylinder case that includes a first geartrain disposed on a front end of the cylinder case and a second geartrain disposed on a rear end of the cylinder case. The first geartrain drives a first camshaft, and the second geartrain drives a second camshaft, the first and second camshafts having respective rotational axes that are parallel.
-
公开(公告)号：US20180195420A1
公开(公告)日：2018-07-12
申请号：US15402576
申请日：2017-01-10
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： John Stallmann
CPC classification number: F01L1/2416 , F01L1/08 , F01L1/143 , F01L1/146 , F01L1/2405 , F01L1/2422 , F01L1/245 , F01L9/023 , F01L13/065 , F01L2101/00 , F01L2105/00
Abstract: A lash compensator for a valve train component of an internal combustion engine is provided that includes an end-cap arranged within a reverse-spring control valve assembly of an axially moveable piston. The piston has a first reservoir and an inner radial wall configured with a through-aperture. The reverse-spring control valve assembly has a control valve housing, a bias spring, an end-cap, and a closing body. The end-cap is configured with a cupped end; an inner side of the cupped end receives a second lower end of the bias spring, and an outer side of the cupped end engages an upper portion of the closing body. The end-cap minimizes or eliminates the variation in flow resistance caused by a variation in end-coil geometry of the second lower end of the bias spring.
-
-
-
-
-
-
-
-
-
Search Results
981
records
(took 0.019 seconds)
