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:
Sep. 23, 2003
Filed:
Oct. 18, 2000
V. Durga Nageswar Rao, Bloomfield Hills, MI (US);
Mark Michael Madin, Canton, MI (US);
Yash Andrew Imai, Troy, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A variable length connecting rod ( ) has a first locking mechanism ( ) for releasably locking connecting rod parts in a first effective length setting (FIG. ) for the rod, and a second locking mechanism ( ) for releasably locking the connecting rod parts in a second effective length setting to change the compression ratio for an engine cylinder. When a length change is to be made, hydraulic fluid unlocks a locked one of the locking mechanisms, allowing inertial force to effect the length change during an engine cycle. At completion of a length change, the other locking mechanism automatically unlocks.