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. 30, 1999
Filed:
Jul. 10, 1998
John D Santi, West Allis, WI (US);
David A Kratz, Brookfield, WI (US);
Other;
Abstract
The centrifugally-responsive compression release apparatus of the present invention is a compact unit which can be simply snap-fit to a position on the cam shaft during assembly and will retain that position during engine operation. The compression release apparatus relieves compression in at least one chamber of an internal combustion engine by utilizing a lift member engageable with a valve operating device and centrifugally-responsive means for changing the position of the lift member in response to engine speeds. The apparatus includes a base member which can be injection molded to a shape of a segmented cylinder thereby substantially corresponding to the shape of the outer surface of the cam shaft. The base member also provides means for integrating and retaining the dynamic components of the apparatus to the base member. Furthermore, the compression release apparatus is adaptable to utilizing a single centrifugally-responsive means, such as a flyweight, to engage more than one valve operating device, thereby relieving pressure in more than one combustion chamber. Thus, the compression release apparatus is easy to manufacture and easy to install on the engine, and does not require any major modification to engine components.