Machine element or mechanism – Gearing – Interchangeably locked
Patent
1994-08-02
1996-04-30
Ta, Khoi Q.
Machine element or mechanism
Gearing
Interchangeably locked
74333, 74745, F16H 3700, F16H 302
Patent
active
055114377
ABSTRACT:
A compound vehicular transmission having a main section and an auxiliary section which includes an auxiliary countershaft gear assembly having an auxiliary countershaft, a first auxiliary countershaft gear fixed to the auxiliary countershaft and constantly meshed with an output shaft range gear, and a second auxiliary countershaft gear selectively coupleable to the auxiliary countershaft and constantly meshed with an intermediate shaft output gear. A jaw clutch is provided for coupling either the auxiliary countershaft to the main countershaft, or the auxiliary countershaft to the second auxiliary countershaft gear. This allows fewer gears to be utilized to achieve a desired number of speed ratios. Since the auxiliary countershaft drive gears are clutched only when used, this arrangement reduces spin back speed of the intermediate shaft to accommodate smoother and faster shifting of the transmission. Alternative embodiments include the use of a two-speed master clutch splitter section or a two-position synchronizing clutch assembly as the input to the main transmission section.
REFERENCES:
patent: 4388843 (1983-06-01), Teeter
patent: 4428247 (1984-01-01), Young
patent: 4754665 (1988-07-01), Vandervoort
patent: 4831894 (1989-05-01), Braun
patent: 4966048 (1990-10-01), Braun
patent: 5062313 (1991-11-01), Fletcher
patent: 5105675 (1992-04-01), Langford et al.
patent: 5231895 (1993-08-01), Stine
patent: 5383374 (1995-01-01), Reynolds
patent: 5385066 (1995-01-01), Braun
Eaton Corporation
Ta Khoi Q.
LandOfFree
Compound vehicular transmission does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Compound vehicular transmission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compound vehicular transmission will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-621705