公开(公告)号：US20220082073A1

公开(公告)日：2022-03-17

申请号：US17021461

申请日：2020-09-15

Applicant: Caterpillar Inc.

Inventor： Cory Andrew Brown ,  Matthew Robert Vanderveen ,  Andrew Justin Wallis ,  Michael Curtis Herr ,  Dana Ray Coldren

IPC: F02M61/04 ,  F02M61/18 ,  F02M51/06

Abstract: A fuel injector includes an injector housing, an outlet check, an injection control valve assembly, and a valve seat orifice plate integrating a valve seat and various orifices for outlet check control. In the valve seat orifice plate a drain orifice extends between a valve seat surface and a check control chamber formed between a closing hydraulic surface of the outlet check and the valve seat orifice plate. First and second re-pressurization orifices extend between an outer surface of the valve seat orifice plate and the check control chamber.

公开(公告)号：US10167831B2

公开(公告)日：2019-01-01

申请号：US15406368

申请日：2017-01-13

Applicant: Caterpillar Inc.

Inventor： Michael Curtis Herr ,  Joshua David Carlson

IPC: F02M55/02 ,  F02M55/00 ,  F02M53/04 ,  F02F1/24 ,  F02M61/16

Abstract: A resilient seal member disposed in an alignment groove of an accumulator body centers the accumulator body in an oversized accumulator bore of a cylinder head to prevent assembly damage. The seal member can compress to allow the accumulator body to move off center within the accumulator bore so that an end may be received by and form a seal with a port of a fuel injector. The alignment groove and the seal member are configured so that cooling fluid can flow past the seal member when the accumulator body is installed. In one implementation, the accumulator body includes at least one fluid flow channel at the alignment groove having a depth greater than the alignment groove so fluid can flow through the channel to pass the seal member.

公开(公告)号：US11591995B2

公开(公告)日：2023-02-28

申请号：US17021461

申请日：2020-09-15

Applicant: Caterpillar Inc.

Inventor： Cory Andrew Brown ,  Matthew Robert Vanderveen ,  Andrew Justin Wallis ,  Michael Curtis Herr ,  Dana Ray Coldren

IPC: F02M61/04 ,  F02M51/06 ,  F02M55/00 ,  F02M61/18

Abstract: A fuel injector includes an injector housing, an outlet check, an injection control valve assembly, and a valve seat orifice plate integrating a valve seat and various orifices for outlet check control. In the valve seat orifice plate a drain orifice extends between a valve seat surface and a check control chamber formed between a closing hydraulic surface of the outlet check and the valve seat orifice plate. First and second re-pressurization orifices extend between an outer surface of the valve seat orifice plate and the check control chamber.

公开(公告)号：US20180202400A1

公开(公告)日：2018-07-19

申请号：US15406368

申请日：2017-01-13

Applicant: Caterpillar Inc.

Inventor： Michael Curtis Herr ,  Joshua David Carlson

IPC: F02M55/02 ,  F02M55/00 ,  F02M53/04 ,  F02F1/24 ,  F02M61/16

CPC classification number: F02M55/02 ,  F02F1/242 ,  F02M53/04 ,  F02M53/043 ,  F02M55/005 ,  F02M55/008 ,  F02M55/025 ,  F02M61/14 ,  F02M61/168

Abstract: A resilient seal member disposed in an alignment groove of an accumulator body centers the accumulator body in an oversized accumulator bore of a cylinder head to prevent assembly damage. The seal member can compress to allow the accumulator body to move off center within the accumulator bore so that an end may be received by and form a seal with a port of a fuel injector. The alignment groove and the seal member are configured so that cooling fluid can flow past the seal member when the accumulator body is installed. In one implementation, the accumulator body includes at least one fluid flow channel at the alignment groove having a depth greater than the alignment groove so fluid can flow through the channel to pass the seal member.