公开(公告)号：US09512836B2

公开(公告)日：2016-12-06

申请号：US14739786

申请日：2015-06-15

Applicant: Cummins Inc.

Inventor： Anthony A. Shaull ,  Wesley R. Thayer

IPC: F02M59/46 ,  F04B49/22 ,  F16K15/02 ,  F04B53/10 ,  F04B19/22 ,  F02M37/00 ,  F02M63/00 ,  F04B7/04 ,  F04B49/24 ,  F04B53/14 ,  F04B53/16

CPC classification number: F04B53/109 ,  F02M37/0023 ,  F02M59/464 ,  F02M63/0033 ,  F04B7/04 ,  F04B19/22 ,  F04B49/22 ,  F04B49/24 ,  F04B49/243 ,  F04B53/10 ,  F04B53/1087 ,  F04B53/1092 ,  F04B53/14 ,  F04B53/16 ,  F16K15/025 ,  F16K15/026

Abstract: A high-pressure fuel pump for an internal combustion engine. The high-pressure fuel pump includes an improved configuration that beneficially simplifies certain features of the high-pressure fuel pump. The fuel pump possesses an inlet check valve positioned along an inlet fuel circuit and an outlet fuel circuit of the high-pressure pump that provides a path for a low-pressure inlet fuel flow to and a path for a high-pressure output fuel flow from a pumping chamber of the fuel pump. Because of the configuration of the inlet check valve and the outlet check valve, the complexity of high-pressure fuel pump is beneficially reduced, decreasing the cost of components and assembly and improving the life and reliability of high-pressure fuel pump.

公开(公告)号：US20160138586A1

公开(公告)日：2016-05-19

申请号：US14875259

申请日：2015-10-05

Applicant: CUMMINS INC.

Inventor： John D. Crofts ,  Scott R. Simmons ,  Wesley R. Thayer ,  Bela Doszpoly ,  David M. Rix ,  Anthony A. Shaull ,  David L. Buchanan

IPC: F04B53/16 ,  F04B19/22 ,  F04B15/02 ,  F04B53/08 ,  F04B53/18 ,  F04B53/14 ,  F04B53/10 ,  F02M37/04 ,  F04B53/04

CPC classification number: F04B53/162 ,  F02M37/043 ,  F02M59/102 ,  F02M59/442 ,  F04B1/0408 ,  F04B1/0421 ,  F04B1/0448 ,  F04B15/02 ,  F04B19/22 ,  F04B53/04 ,  F04B53/08 ,  F04B53/10 ,  F04B53/14 ,  F04B53/143 ,  F04B53/18

Abstract: A fuel pump is disclosed wherein a substantially cylindrical plunger bore is provided with an annular drain groove fluidically coupled to a drain duct. A pump plunger is driven by a drive system located in a separate mechanical compartment that holds a reservoir of lubricating oil. An annular seal is provided adjacent the drain groove substantially at the end of the bore and retained in position by a seal support. Exemplary embodiments provide the drain groove and seal as being positioned immediately adjacent one another so that the seal forms a lower wall of the drain groove.

Abstract translation: 公开了一种燃料泵，其中基本上圆柱形的柱塞孔设置有流体连接到排水管的环形排水沟。 泵柱塞由驱动系统驱动，该驱动系统位于容纳润滑油的单独的机械隔室中。 环形密封件基本上在孔的端部附近设置在排水槽附近，并通过密封支撑件保持在适当位置。 示例性实施例将排水沟和密封件设置成彼此紧邻地定位，使得密封件形成排水沟的下壁。

公开(公告)号：US11421637B2

公开(公告)日：2022-08-23

申请号：US15539588

申请日：2015-12-15

Applicant: CUMMINS INC.

Inventor： Anthony A. Shaull ,  Tunji Adejumo ,  Luke Allen Jones ,  Yip Kwok ,  John D. Lane ,  David M. Rix ,  Wesley R. Thayer

IPC: F04B53/10 ,  F02M59/46 ,  F02M59/02 ,  F04B7/02 ,  F04B53/14

Abstract: The present disclosure generally relates to a pumping element of a fuel pump for an internal combustion engine wherein the pumping element comprises a pumping chamber and a check valve assembly having a first insert including an angled passage in flow communication with a fuel outlet, and a second insert being disposed adjacent the pumping chamber, the second insert including a central bore in flow communication with a fuel inlet, a plurality of through holes in flow communication with the pumping chamber.

公开(公告)号：US20180156175A1

公开(公告)日：2018-06-07

申请号：US15539588

申请日：2015-12-15

Applicant: CUMMINS INC.

Inventor： Anthony A. Shaull ,  Tunji Adejumo ,  Luke Allen Jones ,  Yip Kwok ,  John D. Lane ,  David M. Rix ,  Wesley R. Thayer

IPC: F02M59/46 ,  F04B7/02 ,  F02M59/02

CPC classification number: F02M59/464 ,  F02M59/025 ,  F04B7/0266 ,  F04B53/109 ,  F04B53/14

Abstract: The present disclosure generally relates to a pumping element of a fuel pump for an internal combustion engine wherein the pumping element comprises a pumping chamber and a check valve assembly having a first insert including a passage in flow communication with a fuel outlet, and a second insert being disposed adjacent the pumping chamber, the second insert including a bore in flow communication with a fuel inlet, a plurality of through holes in flow communication with the pumping chamber, and an inlet check valve plunger disposed in the bore for movement between an opened position wherein inlet fuel from the fuel inlet flows past the inlet check valve plunger through the plurality of through holes to the pumping chamber and a closed position wherein outlet fuel from the pumping chamber flows through the plurality of through holes past the inlet check valve plunger to the passage of the first insert.

公开(公告)号：US09464631B2

公开(公告)日：2016-10-11

申请号：US13736730

申请日：2013-01-08

Applicant: CUMMINS INC.

Inventor： Anthony A. Shaull ,  Wesley R. Thayer

IPC: F02M59/46 ,  F04B49/22 ,  F16K15/02 ,  F04B53/10 ,  F04B19/22 ,  F02M37/00 ,  F02M63/00 ,  F04B7/04 ,  F04B49/24 ,  F04B53/14 ,  F04B53/16

CPC classification number: F04B53/109 ,  F02M37/0023 ,  F02M59/464 ,  F02M63/0033 ,  F04B7/04 ,  F04B19/22 ,  F04B49/22 ,  F04B49/24 ,  F04B49/243 ,  F04B53/10 ,  F04B53/1087 ,  F04B53/1092 ,  F04B53/14 ,  F04B53/16 ,  F16K15/025 ,  F16K15/026

Abstract: A high-pressure fuel pump for an internal combustion engine. The high-pressure fuel pump includes an improved configuration that beneficially simplifies certain features of the high-pressure fuel pump. The fuel pump possesses an inlet check valve positioned along an inlet fuel circuit and an outlet fuel circuit of the high-pressure pump that provides a path for a low-pressure inlet fuel flow to and a path for a high-pressure output fuel flow from a pumping chamber of the fuel pump. Because of the configuration of the inlet check valve and the outlet check valve, the complexity of high-pressure fuel pump is beneficially reduced, decreasing the cost of components and assembly and improving the life and reliability of high-pressure fuel pump.

Abstract translation: 一种用于内燃机的高压燃油泵。 高压燃料泵包括有利地简化了高压燃料泵的某些特征的改进的构造。 燃料泵具有沿着入口燃料回路和高压泵的出口燃料回路定位的入口止回阀，其提供用于低压入口燃料流的路径和用于高压输出燃料流的路径 燃料泵的泵送室。 由于入口止回阀和出口止回阀的配置，有利地降低了高压燃油泵的复杂性，降低了部件和组装成本，提高了高压燃油泵的使用寿命和可靠性。