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:
Oct. 23, 2001
Filed:
Sep. 12, 2000
Cooling fluid supply to hydraulically actuated rollers in a continuously-variable-ratio transmission
Applicant:
Inventors:
Brian Joseph Dutson, Manchester, GB;
Andrew Damian De Freitas, Wigan, GB;
Assignee:
Torotrak (Development) Limited, Lancashire, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 1/538 ; F16H 5/704 ;
U.S. Cl.
CPC ...
F16H 1/538 ; F16H 5/704 ;
Abstract
A roller control unit for a CVT includes a cylinder (,) having a piston (,) positioned therein and operably connected to a roller assembly of said CVT thereby to control its position. The unit includes a lubrication supply which comprises a chamber (,) between the cylinder (,) and piston (,) and one or more radially extending passageways (,) through said piston (,). These passageways are in flow communication with the roller and act to direct cooling fluid to said roller. Radial supply of said lubrication facilitates a reduction in flow losses within the supply.