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:
Jan. 07, 1992
Filed:
Dec. 24, 1990
Otis J Olson, Farmington Hill, MI (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
A pin-type, double-acting synchronizer mechanism (22) with friction clutches (24,36 and 26,38), jaw clutches (28,14b and 30,16b), and self-energizing ramps. The ramps act between a shaft (12) and a shift flange (32). The shift flange is rotatable relative to the shaft and jaw clutch members (28,30), and defines three reaction portions (32b) which act against three sets of ramps (52a,52b,52c,52d) defined by an annular sleeve assembly (30). The assembly (30) is fixed against rotational and axial movement relative to the shaft. The angles of the self-energizing ramps may be varied to provide substantially the same synchronizing time for several or all of the ratio gears in a multi-ratio transmission. Three circumferentially spaced pins (40) include blocker shoulders (40c,40d) for preventing asynchronous engagement of the jaw clutches. Three pre-energizer assemblies (42) effect initial engagement of the friction clutches to ensure engagement of the blocker shoulders.