Powertrain unit with compact dipstick

Details Powertrain unit with compact dipstick Powertrain unit with compact dipstick

2005-10-25

2005-10-25

Lazo, Thomas E. (Department: 3745)

Power plants

Pressure fluid source and motor

Input pump and rotary output motor system having...

C060S489000

Reexamination Certificate

active

06957532

ABSTRACT:
A powertrain unit includes a hydraulic continuously variable transmission including a transmission housing, and a dipstick for checking an oil level in the housing. The width of the powertrain unit is reduced by positioning the dipstick laterally inside the housing. The hydraulic continuously variable transmission includes a fixed-displacement swash plate plunger pump and a variable displacement swash plate plunger motor, which are connected through a closed hydraulic circuit. The outer circumference of a portion of a pump casing of the plunger pump for is reduced in diameter to form a reduced diameter portion. The dipstick is positioned so that a gauge portion thereof extends from an area near the outer circumference of the reduced diameter portion down to the bottom of the transmission housing.

REFERENCES:
patent: 5575151 (1996-11-01), Hayashi et al.
patent: 6324843 (2001-12-01), Yasuda et al.
patent: 6530218 (2003-03-01), Saito et al.
patent: 6698199 (2004-03-01), Hayashi et al.
patent: 2003/0079710 (2003-05-01), Webster et al.
patent: 06002753 (1994-01-01), None
patent: 7-88884 (1995-09-01), None
patent: 2002310061 (2002-10-01), None

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