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:
Jun. 01, 1999
Filed:
Dec. 12, 1997
Applicant:
Inventors:
Michael Joseph Gorman, Ann Arbor, MI (US);
Shushan Bai, Ann Arbor, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
1921 / ; 13762564 ;
Abstract
A clutch engagement control has a flow regulating valve to control the engagement timing of the clutch. The regulating valve responds to a flow signal to reduce the fluid flow rate through the valve after the clutch apply piston has taken up the clutch free running clearance. The regulating valve has a control area communicating with a venturi between the regulating valve and the apply piston such that a flow rate signal is present at the control area.