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:
Jul. 27, 2021
Filed:
Sep. 21, 2018
Applicant:
Artemis Intelligent Power Limited, Midlothian, GB;
Inventors:
Mark Brett, Midlothian, GB;
Peter McCurry, Midlothian, GB;
Assignee:
ARTEMIS INTELLIGENT POWER LIMITED, Midlothian, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B 51/00 (2006.01); F04B 49/06 (2006.01); F04B 7/00 (2006.01); F04B 53/10 (2006.01); F03C 1/00 (2006.01);
U.S. Cl.
CPC ...
F04B 49/065 (2013.01); F04B 7/0076 (2013.01); F04B 51/00 (2013.01); F04B 53/1082 (2013.01); F03C 1/002 (2013.01); F04B 7/00 (2013.01); F04B 2205/03 (2013.01);
Abstract
A measurement of the pressure of hydraulic fluid in a fluid working machine can be determined from the timing of the movement of valves which selectively seal a working chamber of cyclically varying volume from a fluid gallery. The timing of opening of a low pressure valve, to connect a working chamber to a low pressure fluid gallery, following the closure of a high pressure valve to seal a working chamber can be used to estimate the pressure in the high pressure fluid gallery at the moment of closure of the high pressure valve.