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.

Date of Patent:
Nov. 28, 2017

Filed:

Jan. 30, 2015
Applicant:

Caterpillar Inc., Peoria, IL (US);

Inventors:

Joshua Wayne Steffen, El Paso, IL (US);

Cory Andrew Brown, Peoria, IL (US);

Assignee:

Caterpillar Inc., Peoria, IL (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 49/24 (2006.01); F04B 23/02 (2006.01); F04B 23/06 (2006.01); F04B 53/10 (2006.01); F02M 59/02 (2006.01); F02M 59/38 (2006.01); F02M 21/02 (2006.01);
U.S. Cl.
CPC ...
F04B 49/24 (2013.01); F02M 21/0215 (2013.01); F02M 21/0245 (2013.01); F02M 21/0287 (2013.01); F02M 59/025 (2013.01); F02M 59/38 (2013.01); F04B 23/02 (2013.01); F04B 23/06 (2013.01); F04B 53/10 (2013.01); Y02T 10/32 (2013.01);
Abstract

A pump includes a reservoir configured to receive a fluid pressurized by a boost pump. The pump also includes at least one pumping mechanism configured to receive a first flow of fluid from the reservoir and direct the first flow of fluid into a discharge passage of the pump without pumping the first flow of fluid when priming the pump. The at least one pumping mechanism is disposed in the reservoir such that the fluid in the reservoir surrounds at least a portion of the at least one pumping mechanism. The discharge passage is configured to output the first flow of fluid from the pump. The pump further includes a bypass passage configured to communicate a second flow of fluid from the reservoir to the storage tank.


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