Continuously variable transmission

Details Continuously variable transmission Continuously variable transmission

1993-10-12

1995-05-09

Lopez, F. Daniel

Power plants

Pressure fluid source and motor

With means purging, cleaning or separating undesirables from...

60485, 60487, F16D 3102

Patent

active

054129478

ABSTRACT:
A working machine such as a powered lawn mower has a continuously variable transmission for transmitting the power of an engine to wheels at a variable speed reduction ratio. The continuously variable transmission comprises an axial-plunger-type hydraulic pump disposed in a case for producing a hydraulic pressure, and an axial-plunger-type hydraulic motor disposed in the case for producing a rotary motion in response to the hydraulic pressure supplied from the hydraulic pump. The hydraulic pump has a pump cylinder with a plurality of pump plungers axially movably disposed therein, and the hydraulic motor has a motor cylinder with a plurality of motor plungers axially movably disposed therein. The pump and motor cylinders are disposed closely in juxtaposed relationship in the case and having respective axes that are perpendicular to each other.

REFERENCES:
patent: 4856368 (1989-08-01), Fujisaki et al.
patent: 4870820 (1989-10-01), Nemoto
patent: 4891943 (1990-01-01), Okada
patent: 4893524 (1990-01-01), Ohashi et al.
patent: 5078659 (1992-01-01), Von Kaler et al.

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