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.:
Date of Patent:
Mar. 12, 2019
Filed:
Aug. 28, 2015
Applicant:
Caterpillar Inc., Peoria, IL (US);
Inventors:
Assignee:
Caterpillar Inc., Deerfield, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B 1/20 (2006.01); F04B 1/30 (2006.01); F04B 1/18 (2006.01); F04B 1/32 (2006.01);
U.S. Cl.
CPC ...
F04B 1/2042 (2013.01); F04B 1/205 (2013.01); F04B 1/2021 (2013.01); F04B 1/2057 (2013.01); F04B 1/303 (2013.01); F04B 1/32 (2013.01); F04B 1/188 (2013.01); F04B 1/324 (2013.01);
Abstract
A port plate for a swashplate type axial piston pump is described herein. The port plate includes an inlet port, a discharge port, and a first metering notch in fluidic communication via a first passage with a metering notch area adjustment valve configured to adjust the effective area of the metering notch. The first metering notch is disposed at a leading edge of one of the inlet port or the discharge port.