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:
Jan. 22, 2019
Filed:
Jun. 15, 2016
Applicant:
Danfoss Power Solutions Gmbh & CO Ohg, Neumunster, DE;
Inventors:
Abhijit Das, Ames, IA (US);
Lee Mahlum, Eau Claire, WI (US);
Luke Wadsley, Ames, IA (US);
Richard Hitchcock, Warrensburg, MO (US);
Jeffrey A. Sipila, Ravensdale, WA (US);
Larry Joachim, Greenville, SC (US);
Assignee:
Danfoss Power Solutions GMBH & CO OHG, Nuemunster, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 31/02 (2006.01); B66F 9/24 (2006.01); B66F 9/22 (2006.01); F15B 11/04 (2006.01); F15B 19/00 (2006.01); F15B 21/08 (2006.01); E02F 9/22 (2006.01);
U.S. Cl.
CPC ...
B66F 9/24 (2013.01); B66F 9/22 (2013.01); E02F 9/2203 (2013.01); E02F 9/2228 (2013.01); F15B 11/04 (2013.01); F15B 19/007 (2013.01); F15B 21/087 (2013.01); F16K 31/02 (2013.01); F15B 2211/6306 (2013.01); F15B 2211/6313 (2013.01); F15B 2211/6346 (2013.01); F15B 2211/6656 (2013.01); F15B 2211/75 (2013.01); F15B 2211/761 (2013.01); F15B 2211/857 (2013.01);
Abstract
A hydraulic control system that uses system pressure information and a rescaled operator input to command valve spool area to control actuator speed. The system uses soft sealing and/or soft pressure compensation.