Power plants – Pressure fluid source and motor – Condition responsive control of motive fluid flow
Reexamination Certificate
2006-10-03
2006-10-03
Kershteyn, Igor (Department: 3745)
Power plants
Pressure fluid source and motor
Condition responsive control of motive fluid flow
C060S488000, C060S431000
Reexamination Certificate
active
07114332
ABSTRACT:
A hydrostatic continuously variable transmission includes a hydraulic pump and a hydraulic motor, supported by a common support shaft, and hydraulically connectable to each other through a hydraulic circuit including an inside passage and an outside passage. A clutch device includes a valve spool, which is slidably disposed in a hollow internal bore formed in the transmission support shaft. The valve spool is operable to make or interrupt fluid communication between the inside passage and the outside passage, according to the movement thereof. A governor mechanism is mounted to a pump casing of the hydraulic pump, and the governor mechanism generates a governor force corresponding to the rotating speed of a clutch cap, by use of centrifugal force generated by the rotation thereof. The valve spool is effectively moved in the hollow internal bore, using the governor force generated from the governor mechanism, to engage or disengage the clutch.
REFERENCES:
patent: 4916901 (1990-04-01), Hayashi et al.
patent: 5060477 (1991-10-01), Hayashi et al.
patent: 5065578 (1991-11-01), Nakajima et al.
patent: 5575151 (1996-11-01), Hayashi et al.
patent: 03089058 (1991-04-01), None
patent: 06042446 (1994-02-01), None
patent: 09100909 (1997-04-01), None
Kanno Yoshihisa
Nanri Takehiko
Ozeki Takashi
Sakakibara Kenji
Tsukada Yoshiaki
Blackman William D.
Carrier Joseph P.
Carrier Blackman & Associates P.C.
Kershteyn Igor
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