Hydromechanical speedchange device and vehicle having speed...

Motor vehicles – Power – Having specific motor-to-body-frame relationship

Reexamination Certificate

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Details

C180S297000, C180S307000, C180S365000, C180S367000, C180S369000, C180S374000

Reexamination Certificate

active

06848530

ABSTRACT:
An HMT apparatus (T) is mounted on a vehicle (A). In the HMT apparatus (T), input rotational force from an engine (13) is once divided into two systems which are then transmitted by an MT device (23) and by an HST device (24) respectively and are re-synthesized for transfer toward wheels (12) and (16). The HMT apparatus (T) is disposed on the vehicle-body right side of the engine (13) which is sideways-mounted on a vehicle body (1), and its input and output shafts (25) and (26) are disposed in parallel with a crank shaft (13a) of the engine (13) and are disposed to run parallel with each other. The input shaft (25) is coupled directly to the crank shaft (13a) and an input gear (27) of the MT device (23) is mounted on the input shaft (25), and a hydraulic piston pump (30) of the HST device (24) is connected to the right side end of the input shaft (25). A planetary gear mechanism (28) of the MT device (23) is connected to the right side end of the output shaft (26), and a hydraulic piston motor (31) of the HST device (24) is connected to the right side of the planetary gear mechanism (28). By virtue of such arrangement, it is possible to improve the degree of freedom of the layout of each component of the HMT apparatus (T), to reduce axial dimensions, and further to provide improvement in the cooling property and maintenance property of the section of the HST device (24).

REFERENCES:
patent: 3703107 (1972-11-01), Piret
patent: 4750381 (1988-06-01), Kita et al.
patent: 5129285 (1992-07-01), Sugano et al.
patent: 5193416 (1993-03-01), Kanayama
patent: 5421790 (1995-06-01), Lasoen
patent: 5542307 (1996-08-01), Hasegawa et al.
patent: 5946983 (1999-09-01), Brambilla
patent: 6145409 (2000-11-01), Auer
patent: 6440026 (2002-08-01), Johnson et al.
patent: 6668964 (2003-12-01), Braud
patent: 46-16679 (1971-06-01), None
patent: 5-85398 (1993-04-01), None
patent: 5-126233 (1993-05-01), None
patent: 07-113454 (1995-05-01), None
Microfilm of the Specification and Drawings Annexed to the Request of Japanese Utility Model Application No. 136499/1979 (Laid Open No. 53628/1981) Yanmar Diesel Engine Co., Ltd.), May 11, 1981.

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