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:
Oct. 28, 2014

Filed:

Feb. 23, 2011
Applicants:

Jack Samuel Lavender, Edinburgh, GB;

Michael Richard Fielding, Linlithgow, GB;

Niall James Caldwell, Edinburgh, GB;

Uwe Bernhard Pascal Stein, Edinburgh, GB;

Stephen Michael Laird, Edinburgh, GB;

Inventors:

Jack Samuel Lavender, Edinburgh, GB;

Michael Richard Fielding, Linlithgow, GB;

Niall James Caldwell, Edinburgh, GB;

Uwe Bernhard Pascal Stein, Edinburgh, GB;

Stephen Michael Laird, Edinburgh, GB;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B 49/03 (2006.01); F04B 9/04 (2006.01); F04B 17/02 (2006.01); F04B 53/10 (2006.01);
U.S. Cl.
CPC ...
F04B 53/1082 (2013.01); F04B 9/04 (2013.01); F04B 17/02 (2013.01);
Abstract

A fluid working machine comprising a controller and a working chamber, an electronically controllable low pressure valve associated therewith and a fast high pressure valve associated therewith, characterized in that the working chamber has associated therewith a slow high pressure valve for controlling the connection of the working chamber to a secondary high pressure manifold. A fluid working machine according to the invention may be operated to rotate its shaft to a certain position, for example to allow easy maintenance of a wind turbine generator.


Find Patent Forward Citations

Loading…