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. 21, 2015
Filed:
Nov. 23, 2010
Applicants:
Bryan E. Nelson, Lacon, IL (US);
Jeremy T. Peterson, Washington, IL (US);
Jeffrey L. Kuehn, Metamora, IL (US);
Inventors:
Bryan E. Nelson, Lacon, IL (US);
Jeremy T. Peterson, Washington, IL (US);
Jeffrey L. Kuehn, Metamora, IL (US);
Assignee:
Caterpillar Inc., Peoria, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H 61/4165 (2010.01); F16H 61/4035 (2010.01); F16H 61/4148 (2010.01); F16H 61/433 (2010.01);
U.S. Cl.
CPC ...
F16H 61/4165 (2013.01); F16H 61/4035 (2013.01); F16H 61/4148 (2013.01); F16H 61/433 (2013.01);
Abstract
A hydraulic fan circuit is disclosed. The hydraulic fan circuit may have a primary pump, a motor, a fan connected to and driven by the motor, and a flywheel connected to and driven by one of the motor and the fan. The hydraulic fan circuit may also have a supply passage extending from the primary pump to the motor, a return passage extending from the motor to the primary pump, and a diverter valve configured to selectively connect the supply passage to a low-pressure sump.