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公开(公告)号：US10526929B2
公开(公告)日：2020-01-07
申请号：US15271319
申请日：2016-09-21
Applicant: Progress Rail Locomotive Inc.
Inventor： Adarsh Gopinathan Nair , Laura E. Rasmussen
Abstract: A valvetrain for an engine includes a pair of valves that are disposed in a spaced apart relation to one another, and in which each of the valves has an elongated valve stem. The valvetrain further includes a valve bridge that is coupled to the pair of valves. The valve bridge is configured to define a pair of receptacles to at least partly receive the pair of valve stems therein. The valve bridge further defines a central recess that is located midway between the pair of receptacles and disposed in a co-planar relationship with the pair of receptacles.
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Patent Agency Ranking
公开(公告)号：US20250122855A1
公开(公告)日：2025-04-17
申请号：US18380501
申请日：2023-10-16
Applicant: Progress Rail Locomotive Inc
Inventor： Adarsh Gopinathan Nair
Abstract: Techniques for detecting failures associated with fuel distribution systems. The techniques may include receiving first oil pressure data associated with an engine of a machine and receiving second oil pressure data associated with a high-pressure pump supplying fuel to the engine. Based at least in part on the first oil pressure data and the second oil pressure data, an impending failure associated with the high-pressure pump may be determined. For instance, utilizing the first oil pressure data and the second oil pressure data, a difference between a first oil pressure value associated with the engine and a second oil pressure value associated with the high-pressure pump may be calculated. The difference in the oil pressure values and the second oil pressure value may be indicative of the impending failure. In some instances, an action may be performed based on detecting the impending failure.
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公开(公告)号：US20190331066A1
公开(公告)日：2019-10-31
申请号：US15967134
申请日：2018-04-30
Applicant: Progress Rail Locomotive Inc.
Inventor： Sudarshan Kedarnath Loya , Steven D. Johnson , Vijaya Kumar , Laura Elise Rasmussen , Adarsh Gopinathan Nair , Michael B. Goetzke
IPC: F02M26/29
Abstract: An EGR cooler may include an EGR cooler housing having top, bottom and side walls, inlet and outlet end walls disposed at opposite ends, and a longitudinal axis extending in a direction of exhaust gas flow from the inlet end to the outlet end. A plurality of cooling tubes extend through the EGR cooler between the top and bottom walls, and are arranged in a cooling tube array to form an exhaust gas receiving area at an upstream side of the cooling tube array proximate the inlet end wall so that exhaust gas flowing into the EGR cooler through an exhaust gas inlet opening will flow into the exhaust gas receiving area and then disperse through the cooling tube array. A pitch distance between the cooling tubes may be greater proximate the longitudinal axis than proximate the side walls to promote flow through, instead of around, the cooling tube array.
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公开(公告)号：US11035362B2
公开(公告)日：2021-06-15
申请号：US16544750
申请日：2019-08-19
Applicant: PROGRESS RAIL LOCOMOTIVE INC.
Inventor： Adarsh Gopinathan Nair , Mathias Klemp , Kyle Figge , Vijaya Kumar , Patricia McWade
Abstract: An oil pump for an engine is disclosed. The oil pump may include a first pump mechanism configured to supply oil to a main lubrication gallery of the engine, and a second pump mechanism configured to supply oil to a piston cooling gallery of the engine. The first pump mechanism may be designed for a first type of engine and the second pump mechanism may be designed for a second type of engine. The first type of engine may have a greater quantity of cylinders than the second type of engine.
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公开(公告)号：US10746138B2
公开(公告)日：2020-08-18
申请号：US15967134
申请日：2018-04-30
Applicant: Progress Rail Locomotive Inc.
Inventor： Sudarshan Kedarnath Loya , Steven D. Johnson , Vijaya Kumar , Laura Elise Rasmussen , Adarsh Gopinathan Nair , Michael B. Goetzke
Abstract: An EGR cooler may include an EGR cooler housing having top, bottom and side walls, inlet and outlet end walls disposed at opposite ends, and a longitudinal axis extending in a direction of exhaust gas flow from the inlet end to the outlet end. A plurality of cooling tubes extend through the EGR cooler between the top and bottom walls, and are arranged in a cooling tube array to form an exhaust gas receiving area at an upstream side of the cooling tube array proximate the inlet end wall so that exhaust gas flowing into the EGR cooler through an exhaust gas inlet opening will flow into the exhaust gas receiving area and then disperse through the cooling tube array. A pitch distance between the cooling tubes may be greater proximate the longitudinal axis than proximate the side walls to promote flow through, instead of around, the cooling tube array.
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公开(公告)号：US10094250B2
公开(公告)日：2018-10-09
申请号：US15240552
申请日：2016-08-18
Applicant: Progress Rail Locomotive Inc.
Inventor： Adarsh Gopinathan Nair , Laura E. Rasmussen
Abstract: A valve bridge is disclosed for use with an internal combustion engine. The valve bridge may include a body with a central cavity formed in a center portion of the body for receiving a hydraulic lash adjuster, and opposing first and second lateral extensions on opposite sides of the central cavity. The valve bridge may further include a first bore in the first extension for receiving a first valve stem, and a second bore in the second extension for receiving a second valve stem. The valve bridge may also include a first internal groove in a wall of the central cavity configured to receive fluid, as well as a first internal passage in the body that extends from the first internal groove toward the first bore. In addition, the first internal passage may extend from a higher gravitational point within the body to a lower gravitational point within the body.
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