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Patent Agency Ranking
公开(公告)号：US10082052B2
公开(公告)日：2018-09-25
申请号：US15427865
申请日：2017-02-08
Applicant: Caterpillar Inc.
Inventor： Ashwin A. Hattiangadi , Selvakumar Selvaraj
CPC classification number: F01L1/2411 , F01L1/053 , F01L1/18 , F01L1/181 , F01L1/2416 , F01L1/26 , F01L1/32 , F01L1/462 , F01L2101/00 , F01L2103/00
Abstract: A replaceable hydraulic lash adjuster and method for assembling such are disclosed. The replaceable hydraulic lash adjuster includes a body, a piston, a check valve and a spring. The body configured to be received in and released from a compartment of a rocker arm. The body including a sidewall surrounding a floor. The floor including a passage that extends between an upper cavity and a lower cavity of the body. The piston disposed in the lower cavity. The piston defining a pocket. A check valve is disposed inside the lower cavity and a spring is disposed inside the pocket. The replacable hydraulic lash adjuster is configured to be slidingly removeable from the rocker arm.
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公开(公告)号：US11852048B2
公开(公告)日：2023-12-26
申请号：US17720410
申请日：2022-04-14
Applicant: Caterpillar Inc.
Inventor： John Stephen Pipis, Jr. , Selvakumar Selvaraj , Eric Lee Schroeder
CPC classification number: F01L1/181 , F01L1/146 , F01L2305/00 , F02F1/4214 , F02F2001/245
Abstract: A valve bridge to operatively interface with a rocker arm and a valve, and systems, assemblies, and methods thereof can comprise: a body, of the valve bridge, having a first side and a second side opposite the first side, a first leg of the valve bridge extending from the first side of the body, a second leg of the valve bridge extending from the first side of the body, and a third leg of the valve bridge extending from the first side of the body. A first pin can extend from an end of the first leg opposite the body, and a second pin can extend from an end of the second leg opposite the body.
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公开(公告)号：US20180334930A1
公开(公告)日：2018-11-22
申请号：US15600253
申请日：2017-05-19
Applicant: Caterpillar Inc.
Inventor： Ashwin A. Hattiangadi , Selvakumar Selvaraj
Abstract: A rocker arm for an engine valve actuator assembly is disclosed. The rocker arm may include a rocker arm body disposed between a first and second arm end. Furthermore, a rocker arm bore and an adjuster compartment may be defined proximal to the second arm end. The rocker arm may further include a roller positioned at the first arm end and operably coupled to a cam, the cam configured to actuate the rocker arm between a first and second position. The rocker arm may further include a shaft inserted through a shaft mounting aperture and the rocker arm is configured to rotate about the shaft between the first and second positions. Furthermore, a fluid passage may be defined within the rocker arm body extending between a first passage opening formed in a bearing surface of the shaft mounting aperture and a second passage opening that opens into the adjuster compartment.
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公开(公告)号：US10132206B1
公开(公告)日：2018-11-20
申请号：US15600253
申请日：2017-05-19
Applicant: Caterpillar Inc.
Inventor： Ashwin A. Hattiangadi , Selvakumar Selvaraj
Abstract: A rocker arm for an engine valve actuator assembly is disclosed. The rocker arm may include a rocker arm body disposed between a first and second arm end. Furthermore, a rocker arm bore and an adjuster compartment may be defined proximal to the second arm end. The rocker arm may further include a roller positioned at the first arm end and operably coupled to a cam, the cam configured to actuate the rocker arm between a first and second position. The rocker arm may further include a shaft inserted through a shaft mounting aperture and the rocker arm is configured to rotate about the shaft between the first and second positions. Furthermore, a fluid passage may be defined within the rocker arm body extending between a first passage opening formed in a bearing surface of the shaft mounting aperture and a second passage opening that opens into the adjuster compartment.
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公开(公告)号：US20180223701A1
公开(公告)日：2018-08-09
申请号：US15427865
申请日：2017-02-08
Applicant: Caterpillar Inc.
Inventor： Ashwin A. Hattiangadi , Selvakumar Selvaraj
CPC classification number: F01L1/181 , F01L1/053 , F01L1/2416 , F01L1/26 , F01L1/32 , F01L1/462 , F01L2101/00 , F01L2103/00
Abstract: A replaceable hydraulic lash adjuster and method for assembling such are disclosed. The replaceable hydraulic lash adjuster includes a body, a piston, a check valve and a spring. The body configured to be received in and released from a compartment of a rocker arm. The body including a sidewall surrounding a floor. The floor including a passage that extends between an upper cavity and a lower cavity of the body. The piston disposed in the lower cavity. The piston defining a pocket. A check valve is disposed inside the lower cavity and a spring is disposed inside the pocket. The replacable hydraulic lash adjuster is configured to be slidingly removeable from the rocker arm.
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