Dual clutch countershaft automatic transmission

Machine element or mechanism – Gearing – Interchangeably locked

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Details

74333, F16H 308

Patent

active

053850645

ABSTRACT:
A countershaft automatic transmission for vehicular use is disclosed. The transmission has four forward gears which operate using two clutches and two dual synchronizers, The two clutches are mounted on a main shaft with associated gear clusters and the synchronizers are mounted on a countershaft with associated mating gear clusters. Reverse gear uses another synchronizer mounted on a lay shaft with associated gearing. Gear engagement is accomplished by actuating a hydraulic clutch after having shifted a synchronizer to select the gear to be engaged.

REFERENCES:
patent: Re33336 (1990-09-01), Bainbridge et al.
patent: 3313173 (1967-04-01), Szodfridt et al.
patent: 3324745 (1968-01-01), Szodfridt
patent: 3394610 (1968-07-01), Szodfridt
patent: 3398603 (1968-08-01), Szodfridt et al.
patent: 3473327 (1969-10-01), Szodfridt
patent: 3537257 (1970-11-01), Webster et al.
patent: 3552235 (1971-01-01), Szodfridt
patent: 3561291 (1971-02-01), Webster et al.
patent: 3654819 (1972-04-01), Link
patent: 3688596 (1972-09-01), Szodfridt
patent: 3774460 (1973-11-01), Browning et al.
patent: 3774474 (1973-11-01), Recker et al.
patent: 3774475 (1973-11-01), Meysenburg et al.
patent: 3916714 (1975-11-01), Sisson et al.
patent: 3939733 (1976-02-01), Wetrich
patent: 4145935 (1979-03-01), Herlitzek
patent: 4448293 (1984-05-01), Maeda
patent: 4461188 (1984-07-01), Fisher
patent: 4463621 (1984-08-01), Fisher
patent: 4476737 (1984-10-01), Young
patent: 4485687 (1984-12-01), Burke et al.
patent: 4544057 (1985-10-01), Webster et al.
patent: 4558607 (1985-12-01), Szodfridt
patent: 4565106 (1986-01-01), Sumiyoshi
patent: 4627301 (1986-12-01), Bainbridge et al.
patent: 4667526 (1987-05-01), Young
patent: 4697471 (1987-10-01), Hiketa
patent: 4714147 (1987-12-01), Szodfridt et al.
patent: 4726246 (1988-02-01), Whalen
patent: 4777837 (1988-10-01), Lehle
patent: 4785682 (1988-11-01), Nishimura et al.
patent: 4831894 (1989-05-01), Braun
patent: 4876923 (1989-10-01), Crandall et al.
patent: 4998604 (1991-03-01), Vukovich et al.
patent: 5035682 (1991-07-01), Nakayama et al.
patent: 5069657 (1991-12-01), Taniguchi et al.
patent: 5090950 (1992-02-01), Sugano et al.
patent: 5171294 (1992-12-01), Takano et al.
patent: 5178588 (1993-01-01), Hashimoto et al.
patent: 5186065 (1993-02-01), Downs
Article: "A Fully Automatic Vehicle Transmission Using a Layshaft Type Gearbox", Webster, 1981 SAE.
Article: "Das Porsche-Doppelkupplungs-(PDK)-Getriebe", (date unknown).
Article: "Evolutionary Shift", Road & Track, 1987.

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