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:
Jan. 24, 2023

Filed:

Jan. 21, 2022
Applicant:

Schaeffler Technologies Ag & Co. KG, Herzogenaurach, DE;

Inventors:

Gustavo de Oliveira Figueiredo, Sterling Heights, MI (US);

Andrew Mlinaric, Lakeshore, CA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01L 1/344 (2006.01); F01L 13/00 (2006.01);
U.S. Cl.
CPC ...
F01L 1/3442 (2013.01); F01L 2001/3443 (2013.01); F01L 2013/101 (2013.01); F01L 2820/031 (2013.01);
Abstract

A hydraulic fluid control valve (HFCV) configured to recirculate an existing hydraulic fluid from a first hydraulic actuation chamber to a second hydraulic actuation chamber is provided. The HFCV includes a selectively movable spool assembly having an outer annulus, at least one one-way valve arranged within the outer annulus, and an inner fluid chamber configured to receive and deliver the exiting hydraulic fluid to one or both of either a sump or one of the first or second hydraulic actuation chambers. The at least one one-way valve moves in an axial direction and the outer annulus serves as an axial motion stop for the at least one one-way valve.


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