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公开(公告)号：US20230304482A1
公开(公告)日：2023-09-28
申请号：US18326230
申请日：2023-05-31
Applicant: Cummins Inc.
Inventor： Donald J. Benson , Karthik Sethuraman , Michael A. Lucas , Eric A. Benham , Richard E. Duncan
CPC classification number: F04B7/0076 , F04B53/1022 , F04B53/1035 , F02M59/466
Abstract: A pump inlet valve includes a valve body and a plunger assembly. The valve body includes a valve body cavity. The plunger assembly is arranged within the valve body cavity and includes a plunger body, a plunger barrel formed at the plunger body so as to form a plunger barrel volume, and a plunger. The plunger is configured to move within the plunger barrel to thereby allow a fluid to flow past the plunger assembly when the plunger is in an open position and to inhibit the fluid from flowing past the plunger assembly when the plunger is in a closed position. The plunger is configured to allow continuous fluid communication between the plunger barrel volume and a supply inlet, through which fluid is supplied to the pump inlet valve.
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公开(公告)号：US20220010870A1
公开(公告)日：2022-01-13
申请号：US17293599
申请日：2019-02-12
Applicant: Cummins Inc.
Inventor： Steven Valentin , Ross A. Phillips , Romaine O. Edwards , Eric A. Benham , Marian Trocki , Richard E. Duncan , Neil Jeffries , Karthik Sethuraman
Abstract: A tappet assembly (100) used in mechanical equipment includes a tappet body (108) having a cylindrical shape and including a lower carrier portion (152) and an upper shell portion (158) having a cavity (150) defined by an inner wall (160) of the upper shell portion (158) and a top surface (154) of the lower carrier portion (152). The lower carrier portion (152) and the upper shell portion (158) are integrally formed as a single-piece unit. A post (162) extends upwardly from the top surface (154) of the lower carrier portion (152) and is configured to reduce a peak contact pressure associated with the tappet body (108).
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公开(公告)号：US20250084814A1
公开(公告)日：2025-03-13
申请号：US18953425
申请日：2024-11-20
Applicant: Cummins Inc.
Inventor： Eric A. Benham , Karthik Sethuraman , Donald J. Benson , Michael Andrew Lucas , Richard E. Duncan
Abstract: At least some embodiments of the present disclosure are directed to pump assemblies. In some embodiments, the pump is a high-pressure pump for an engine. The pump includes: an inlet valve configured to receive fuel; an armature coupled to the inlet valve and configured to actuate the inlet valve; and a pump barrel comprising a barrel guide, the barrel guide comprising a protrusion and configured to guide a motion of the armature.
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公开(公告)号：US12173675B2
公开(公告)日：2024-12-24
申请号：US18497382
申请日：2023-10-30
Applicant: Cummins Inc.
Inventor： Eric A. Benham , Karthik Sethuraman , Donald J. Benson , Michael Andrew Lucas , Richard E. Duncan
Abstract: At least some embodiments of the present disclosure are directed to pump assemblies. In some embodiments, the pump is a high-pressure pump for an engine. The pump includes: an inlet valve configured to receive fuel; an armature coupled to the inlet valve and configured to actuate the inlet valve; and a pump barrel comprising a barrel guide, the barrel guide comprising a protrusion and configured to guide a motion of the armature.
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Patent Agency Ranking
公开(公告)号：US20240060464A1
公开(公告)日：2024-02-22
申请号：US18497382
申请日：2023-10-30
Applicant: Cummins Inc.
Inventor： Eric A. Benham , Karthik Sethuraman , Donald J. Benson , Michael Andrew Lucas , Richard E. Duncan
CPC classification number: F02M59/366 , F02M63/0035 , F02M63/0017
Abstract: At least some embodiments of the present disclosure are directed to pump assemblies. In some embodiments, the pump is a high-pressure pump for an engine. The pump includes: an inlet valve configured to receive fuel; an armature coupled to the inlet valve and configured to actuate the inlet valve; and a pump barrel comprising a barrel guide, the barrel guide comprising a protrusion and configured to guide a motion of the armature.
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公开(公告)号：US20230167794A1
公开(公告)日：2023-06-01
申请号：US18160556
申请日：2023-01-27
Applicant: Cummins Inc.
Inventor： Samuel David Griffith Magnuson , Donald J. Benson , Matthew B. State , Eric A. Benham , Aleksandr E. Lesin , Karthik Sethuraman
CPC classification number: F02M59/102 , F02M59/06
Abstract: The present disclosure provides a high-pressure fuel pump including a barrel unit, a plunger, and a camshaft assembly having an eccentric cam lobe including a surface of the lobe. A follower is provided between the plunger and the surface of the lobe of the camshaft assembly to facilitate translation between the rotational movement of the camshaft assembly to axial movement of the plunger. The follower includes arcuate surfaces configured to mate with corresponding arcuate surfaces of the lobe of the cam shaft assembly and the plunger, respectively.
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公开(公告)号：US20250154922A1
公开(公告)日：2025-05-15
申请号：US18926652
申请日：2024-10-25
Applicant: Cummins Inc.
Inventor： Michael R. Tidwell , Nahom Abebe Wondimu , Karthik Sethuraman , Joao Paulo da Silva , Aditya Vidyadhar Bhagwat , Timothy J. Viola
Abstract: An engine system includes a gaseous fuel injection system including a plurality of gaseous fuel injectors configured to inject gaseous fuel for combustion in a plurality of cylinders and an electronic control system operatively coupled with the gaseous fuel injection system. The electronic control system is configured to determine whether to perform a break loose operation of the plurality of injectors, energize each of the plurality of gaseous fuel injectors with multiple voltage pulses in response to a determination to perform the break loose operation, and after the energization commence ignition to rotate the engine.
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公开(公告)号：US12247538B2
公开(公告)日：2025-03-11
申请号：US18310181
申请日：2023-05-01
Applicant: Cummins Inc.
Inventor： Eric A. Benham , Karthik Sethuraman , Richard E. Duncan
Abstract: High-pressure fuel pumps and systems incorporating the same are disclosed. The fuel pump includes a housing with at least one fluid feed port, a barrel with at least one fluid receiving port, and a clamp to secure the barrel to the housing. The barrel has a first surface configured to contact a second surface of the housing to form a groove. The groove provides fluid communication between the at least one fluid feed port of the housing and the at least one fluid receiving port of the barrel.
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公开(公告)号：US20230265817A1
公开(公告)日：2023-08-24
申请号：US18310181
申请日：2023-05-01
Applicant: Cummins Inc.
Inventor： Eric A. Benham , Karthik Sethuraman , Richard E. Duncan
CPC classification number: F02M55/005 , F02M55/025
Abstract: High-pressure fuel pumps and systems incorporating the same are disclosed. The fuel pump includes a housing with at least one fluid feed port, a barrel with at least one fluid receiving port, and a clamp to secure the barrel to the housing. The barrel has a first surface configured to contact a second surface of the housing to form a groove. The groove provides fluid communication between the at least one fluid feed port of the housing and the at least one fluid receiving port of the barrel.
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