Hydraulic coupling for vehicle drivetrain

Details Hydraulic coupling for vehicle drivetrain Hydraulic coupling for vehicle drivetrain

1998-02-18

1999-03-30

Bonck, Rodney H.

Planetary gear transmission systems or components

Fluid drive or control of planetary gearing

Control of differential planetary gearing

192103F, F16H 4822

Patent

active

058881638

ABSTRACT:
A control valve (80) of a hydraulic coupling (32) controls pumping from a casing inlet port (58) by a hydraulic pump (48) through a casing outlet port (78) to control coupling between two rotary members such as by operation of a clutch (68). The casing (34) is connected to one of the rotary members while a pumping component embodied by an impeller (50) is connected to the other rotary member and meshed with an internal ring gear (54) having one more tooth than the number of impeller teeth to provide sufficient pumping capacity so that the pump can act as a brake while still having relatively constant pumping pressure. The control valve (80) includes an elongated valve element (82) mounted within a recess (98) to provide accurate control of its closure when the pumped hydraulic fluid reaches a predetermined pressure corresponding to a predetermined extent of relative rotation between the two drivetrain members. This elongated valve element (82) is made from a bimetallic strip so as to be temperature compensated and the outlet port (78) is provided with a main passage (94) as well as a bleed passage (96,96') that is cleaned when the valve element is opened. One construction has a valve body defining both the main passages (94) and the bleed passage (96) of the port, while another construction has the valve body defining the main passage (94) and the valve element (82) defining the bleed passage (96'). Another construction has the recess (98) provided with an inclination extending from the port (78) and has a flat elongated valve element (82) that may be either straight or curved.

REFERENCES:
patent: 1660588 (1928-01-01), Wishart et al.
patent: 2004929 (1935-06-01), Centervall
patent: 2026777 (1936-01-01), Dumble
patent: 2775141 (1956-12-01), Ronning
patent: 2899981 (1959-08-01), Binks
patent: 2913928 (1959-11-01), Double
patent: 2922319 (1960-01-01), Burner
patent: 3229550 (1966-01-01), Nickell
patent: 3230795 (1966-01-01), Mueller
patent: 3251244 (1966-05-01), Nickell
patent: 3350961 (1967-11-01), Dodge
patent: 3361008 (1968-01-01), Fallon
patent: 3393582 (1968-07-01), Mueller
patent: 3407599 (1968-10-01), Ulbricht
patent: 3490312 (1970-01-01), Seitz et al.
patent: 3686976 (1972-08-01), Philippi
patent: 3724289 (1973-04-01), Kennicutt
patent: 3748928 (1973-07-01), Shiber
patent: 3752280 (1973-08-01), Cheek
patent: 3835730 (1974-09-01), Pemberton
patent: 3894446 (1975-07-01), Snoy et al.
patent: 3923113 (1975-12-01), Pagdin
patent: 3987689 (1976-10-01), Engle
patent: 4012968 (1977-03-01), Kelbel
patent: 4031917 (1977-06-01), De John et al.
patent: 4041804 (1977-08-01), Clark
patent: 4091901 (1978-05-01), F'Geppert
patent: 4177831 (1979-12-01), Benjamin
patent: 4253491 (1981-03-01), Worthen et al.
patent: 4258588 (1981-03-01), Yum
patent: 4263824 (1981-04-01), Mueller
patent: 4272993 (1981-06-01), Kopich
patent: 4388196 (1983-06-01), Lucia
patent: 4445400 (1984-05-01), Sullivan et al.
patent: 4493387 (1985-01-01), Lake et al.
patent: 4548096 (1985-10-01), Giocastro et al.
patent: 4601359 (1986-07-01), Weismann et al.
patent: 4606428 (1986-08-01), Giere
patent: 4630505 (1986-12-01), Williamson
patent: 4644822 (1987-02-01), Batchelor
patent: 4650028 (1987-03-01), Batchelor
patent: 4679463 (1987-07-01), Ozaki et al.
patent: 4714129 (1987-12-01), Mueller
patent: 4719998 (1988-01-01), Hiramatsu et al.
patent: 4727966 (1988-03-01), Hiramatsu et al.
patent: 4730514 (1988-03-01), Shikata et al.
patent: 4732052 (1988-03-01), Dewald
patent: 4821604 (1989-04-01), Asano
patent: 4867012 (1989-09-01), McGarraugh
patent: 4876921 (1989-10-01), Yasui et al.
patent: 4884470 (1989-12-01), Onoue
patent: 4905808 (1990-03-01), Tomita et al.
patent: 4909371 (1990-03-01), Okamoto et al.
patent: 4919006 (1990-04-01), Willett et al.
patent: 4924989 (1990-05-01), Filderman
patent: 4957473 (1990-09-01), Takemura et al.
patent: 4960011 (1990-10-01), Asano
patent: 4966268 (1990-10-01), Asano et al.
patent: 4974471 (1990-12-01), McGarraugh
patent: 5005131 (1991-04-01), Imaseki et al.
patent: 5087228 (1992-02-01), Johansson
patent: 5189930 (1993-03-01), Kameda
patent: 5213125 (1993-05-01), Leu
patent: 5310388 (1994-05-01), Okcuoglue et al.
patent: 5320586 (1994-06-01), Baxter, Jr.
patent: 5536215 (1996-07-01), Shaffer et al.
patent: 5595214 (1997-01-01), Shaffer et al.
patent: 5735764 (1998-04-01), Shaffer et al.

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