The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10487785 B1

Date of Patent:

Nov. 26, 2019

Filed:

Mar. 31, 2016

Pinless tappet in a common rail high pressure fuel pump

Applicant:

Cummins Inc., Columbus, IN (US);

Inventor:

Anthony A. Shaull, Columbus, IN (US);

Assignee:

Cummins Inc., Columbus, IN (US);

Attorney:

Faegre Baker Daniels LLP

Primary Examiner:

Michael Leslie

Int. Cl.

CPC ...

F02M 59/10 (2006.01); F02M 59/44 (2006.01); F02M 41/14 (2006.01); F01L 1/14 (2006.01); F02M 59/04 (2006.01); F04B 9/04 (2006.01);

U.S. Cl.

CPC ...

F02M 59/102 (2013.01); F02M 59/44 (2013.01); F01L 1/14 (2013.01); F01L 2105/00 (2013.01); F01L 2107/00 (2013.01); F02M 59/04 (2013.01); F02M 2041/1494 (2013.01); F04B 9/042 (2013.01);

Abstract

A system for preventing rotation of a tappet includes a tappet having an outer casing and a central axis which is configured to reciprocate linearly along the central axis. The outer casing includes a flat portion having a length along the central axis and having a width. Additionally, the system includes a lock bar fixed in position relative to the linear oscillation of the outer casing. The lock bar is positioned in proximity to the flat portion of the outer casing. Upon rotation of the outer casing about the central axis, the lock bar is configured to come into contact with the cuter casing and inhibit additional rotation of the outer casing.

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