Power unit

Details Power unit Power unit

2006-12-26

2006-12-26

Lazo, Thomas E. (Department: 3745)

Power plants

Pressure fluid source and motor

Input pump and rotary output motor system having...

C060S435000, C060S488000, C060S494000

Reexamination Certificate

active

07152403

ABSTRACT:
A power unit includes an engine and a static hydraulic continuously variable transmission with a swash plate type hydraulic pump and a hydraulic motor, which are connected via a hydraulic pressure closing circuit. This power unit drives the hydraulic pump to rotate with the engine and performs swash plate angle control of the hydraulic motor. A crankshaft mechanism of the engine and a rotating mechanism of the static hydraulic continuously variable transmission are housed in a transmission housing. A cylinder of the engine is integrated with the transmission housing, and a swash plate control motor for swash plate angle control of the hydraulic motor is positioned at an area adjacent a root of the cylinder in the transmission housing.

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patent: 6588207 (2003-07-01), Pouliot
patent: 2004/0206079 (2004-10-01), Ito et al.
patent: 2 439 989 (2005-03-01), None
patent: 1-93661 (1989-04-01), None

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