Machine element or mechanism – Gearing – Interchangeably locked
Patent
1987-10-21
1989-07-11
Diehl, Dwight G.
Machine element or mechanism
Gearing
Interchangeably locked
74360, F16H 308
Patent
active
048460095
ABSTRACT:
A countershaft transmission includes an input shaft, a countershaft, an output shaft, first and second disc type directional clutches associated with the input shaft, and disc type speed clutches associated with the countershaft and output shaft to selectively connect a plurality of constantly meshing gears in preselected patterns to provide three forward speeds and three reverse speeds for a work vehicle such as a track-type tractor. The gears and clutches are functionally arranged in a forward and reverse mechanism serially connected to a three-speed mechanism and a speed reduction ratio change can be made to the speed mechanism without effecting the speed reduction ratio of the forward and reverse mechanism. Reverse speeds greater than 20% faster than the corresponding forward speeds are possible using a three-gear train in the forward and reverse mechanism. The gears, and the directional and speed clutches are arranged to provide a radially and longitudinally compact transmission.
REFERENCES:
patent: 3318167 (1967-05-01), Frost
patent: 3425293 (1969-02-01), Krawczyk et al.
patent: 3858455 (1975-01-01), Sisson et al.
patent: 4145935 (1979-03-01), Herlitzek
patent: 4333358 (1982-06-01), Grattapaglia
patent: 4341127 (1982-07-01), Stodt
patent: 4523655 (1985-06-01), Keenan et al.
patent: 4589294 (1986-05-01), Keenan et al.
patent: 4589295 (1986-05-01), Jerry et al.
patent: 4627302 (1986-12-01), Laylock et al.
patent: 4726246 (1988-02-01), Whalen
Portion of Shop Manual SEBMO4190100 on Komatsu Model WA300-1 Transmission, published circa Jun., 1984.
Portion of Shop Manual SEBMO382COO on Komatsu Model W90-3 Transmission published circa Feb., 1983.
Caterpillar Inc.
Diehl Dwight G.
Lanchantin, Jr. Charles E.
LandOfFree
Countershaft 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 Countershaft transmission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Countershaft transmission will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-428545