Hydraulic coupling for vehicle drivetrain - Patent Review 5536215

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Hydraulic coupling for vehicle drivetrain
United States Patent	5536215
Link to this page	http://www.wikipatents.com/5536215.html
Inventor(s)	Shaffer; Theodore E. (Santa Barbara, CA), Okcuoglu; Murat N. (Santa Barbara, CA)
Abstract	A hydraulic coupling (32) includes a control valve (80) that controls pumping from a casing inlet port (58) by a hydraulic pump (48) through a casing outlet port (78) to control operation of a clutch (68) for coupling between two rotary members. 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 a by metallic valve element (82) mounted within a recess (98) to provide accurate temperature compensated 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. The outlet port (78) is disclosed as extending through an actuating piston (72) of the clutch in certain embodiments and also through the casing back to the hydraulic pump in another embodiment to provide a supercharged circuit.

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Reference	Relevancy	Comments	Reference	Relevancy	Comments
5320586 Baxter, Jr. Jun,1994	Your vote accepted [0 after 0 votes]		5310388 Okcuoglu et al. May,1994	Your vote accepted [0 after 0 votes]
5189930 Kameda Mar,1993	Your vote accepted [0 after 0 votes]		5087228 Johansson Feb,1992	Your vote accepted [0 after 0 votes]
5005131 Imaseki et al. Apr,1991	Your vote accepted [0 after 0 votes]		4974471 McGarraugh Dec,1990	Your vote accepted [0 after 0 votes]
4966268 Asano et al. Oct,1990	Your vote accepted [0 after 0 votes]		4960011 Asano Oct,1990	Your vote accepted [0 after 0 votes]
4957473 Takemura et al. Sep,1990	Your vote accepted [0 after 0 votes]		4919006 Willett et al. Apr,1990	Your vote accepted [0 after 0 votes]
4909371 Okamoto et al. Mar,1990	Your vote accepted [0 after 0 votes]		4905808 Tomita et al. Mar,1990	Your vote accepted [0 after 0 votes]
4884470 Onoue Dec,1989	Your vote accepted [0 after 0 votes]		4876921 Yasui et al. Oct,1989	Your vote accepted [0 after 0 votes]
4867012 McGarraugh Sep,1989	Your vote accepted [0 after 0 votes]		4821604 Asano Apr,1989	Your vote accepted [0 after 0 votes]
4730514 Shikata et al. Mar,1988	Your vote accepted [0 after 0 votes]		4732052 Dewald Mar,1988	Your vote accepted [0 after 0 votes]
4727966 Hiramatsu et al. Mar,1988	Your vote accepted [0 after 0 votes]		4719998 Hiramatsu et al. Jan,1988	Your vote accepted [0 after 0 votes]
4714129 Mueller Dec,1987	Your vote accepted [0 after 0 votes]		4679463 Ozaki et al. Jul,1987	Your vote accepted [0 after 0 votes]
4650028 Eastman et al. Mar,1987	Your vote accepted [0 after 0 votes]		4644822 Batchelor Feb,1987	Your vote accepted [0 after 0 votes]
4630505 Williamson Dec,1986	Your vote accepted [0 after 0 votes]		4606428 Giere Aug,1986	Your vote accepted [0 after 0 votes]
4601359 Weismann et al. Jul,1986	Your vote accepted [0 after 0 votes]		4548096 Giocastro et al. Oct,1985	Your vote accepted [0 after 0 votes]
4493387 Lake et al. Jan,1985	Your vote accepted [0 after 0 votes]		4445400 Sullivan et al. May,1984	Your vote accepted [0 after 0 votes]
4388196 Lucia Jun,1983	Your vote accepted [0 after 0 votes]		4272993 Kopich Jun,1981	Your vote accepted [0 after 0 votes]
4263824 Mueller Apr,1981	Your vote accepted [0 after 0 votes]		4258588 Yum Mar,1981	Your vote accepted [0 after 0 votes]
4041804 Clark Aug,1977	Your vote accepted [0 after 0 votes]		4012968 Kelbel Mar,1977	Your vote accepted [0 after 0 votes]
3987689 Engle Oct,1976	Your vote accepted [0 after 0 votes]		3923113 Pagdin Dec,1975	Your vote accepted [0 after 0 votes]
3894446 Snoy et al. Jul,1975	Your vote accepted [0 after 0 votes]		3835730 Pemberton Sep,1974	Your vote accepted [0 after 0 votes]
3752280 Cheek Aug,1973	Your vote accepted [0 after 0 votes]		3748928 Shiber Jul,1973	Your vote accepted [0 after 0 votes]
3724289 Kennicutt Apr,1973	Your vote accepted [0 after 0 votes]		3686976 Philippi Aug,1972	Your vote accepted [0 after 0 votes]
3490312 Seitz et al. Jan,1970	Your vote accepted [0 after 0 votes]		3407599 Ulbricht Oct,1968	Your vote accepted [0 after 0 votes]
3393582 Mueller Jul,1968	Your vote accepted [0 after 0 votes]		3361008 Fallon Jan,1968	Your vote accepted [0 after 0 votes]
3350961 Dodge Nov,1967	Your vote accepted [0 after 0 votes]		3251244 Nickell May,1966	Your vote accepted [0 after 0 votes]
3299550 Nickell Jan,1966	Your vote accepted [0 after 0 votes]		3230795 Mueller Jan,1966	Your vote accepted [0 after 0 votes]
2922319 Burner Jan,1960	Your vote accepted [0 after 0 votes]		2775141 Ronning Dec,1956	Your vote accepted [0 after 0 votes]
2026777 Dumble Jan,1936	Your vote accepted [0 after 0 votes]		2004929 Centervall Jun,1935	Your vote accepted [0 after 0 votes]
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