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:
Aug. 11, 1992
Filed:
Jun. 24, 1991
Michael M Schechter, Southfield, MI (US);
Aladar O Simko, Dearborn Heights, MI (US);
Michael B Levin, Birmingham, MI (US);
Ford Motor Company, Dearborn, MI (US);
Abstract
The present invention contemplates a mechanically simply constructed mechanism located internally of a piston engine for adjustably changing the stroke of a piston over a predetermined range in response to a variety of operating control parameters. The adjustable stroke changing mechanism provides an optimum compression ratio at each change in piston stroke and over the entire range of piston stroke provided which may be varied from one piston engine to another of different performance characteristics without requiring a major change in design of the stroke changing mechanism. The stroke changing mechanism includes a swing plate pivotally fixed to the engine block at one end and placed intermediate the piston connection rod and respective crankshaft pin at its other end, each of which are affixed to and translate within the swing plate as the piston is driven to reciprocate within a piston cylinder. An adjustment link is pivotally connected to the engine block at one end and to the connecting rod at its other end and at the swing plate. The adjustment link is hydraulically controlled and actuable to vary in length and thereby change the stroke, and concurrently the compression ratio of the piston.