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:
Nov. 19, 2019
Filed:
Jul. 28, 2017
Ford Global Technologies, Llc, Dearborn, MI (US);
Derek Kinch, Ypsilanti, MI (US);
Timothy Andrew Sikowski, China Township, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A transmission includes a hydraulically actuated park valve with two spools in a common housing. One of the spools engages and disengages the park mechanism in response to manipulation of line pressure and engagement of specified shift elements. A pin selectively engages this spool to hold it in position. The valve is designed such that friction holds the spool in position in the absence of hydraulic pressure or electric power. The second spool controls an out-of-park circuit such that the park mechanism remains disengaged when desired. The two spools are separated by a compression spring.