Hydraulic motor device with displacement selector and a...

Details Hydraulic motor device with displacement selector and a... Hydraulic motor device with displacement selector and a...

2005-08-09

2005-08-09

Schwartz, Christopher P. (Department: 3683)

Fluid-pressure and analogous brake systems

Multiple control

Fluid and electric

C303S003000, C060S436000, C060S439000

Reexamination Certificate

active

06926372

ABSTRACT:
Hydraulic motor drive apparatus having a cubic capacity selector (16) which has at least two positions, control means for controlling the selector, which means comprise a hydraulic control chamber (18) suitable for being fed with fluid via a control duct (20), and first opposing return means (17). The apparatus further comprises a brake system having a brake release chamber (38) and second opposing return means (39). The control duct (20) is suitable for being connected to the brake release chamber (38), and the first return means (17) are suitable for returning the cubic capacity selector to its large cubic capacity first position when the pressure in said chamber becomes lower than a first threshold pressure, whereas the second return means (39) return the brake means (36) to their braking position when the pressure in the brake release chamber becomes lower than a second threshold pressure, which is itself lower than said first threshold pressure.

REFERENCES:
patent: 5115890 (1992-05-01), Noel
patent: 5220790 (1993-06-01), Allart et al.
patent: 5730041 (1998-03-01), Fillion et al.
patent: 6038859 (2000-03-01), Mangano et al.
patent: 6199377 (2001-03-01), Allart et al.
patent: 6318235 (2001-11-01), Allart et al.
patent: 6347572 (2002-02-01), Martin et al.
patent: 000969205 (1999-06-01), None
patent: 001058002 (2000-04-01), None
patent: 2655090 (1991-05-01), None
patent: 2673684 (1992-09-01), None

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