192 clutches and power-stop control – Clutches – Fluent material
Patent
1994-05-23
1996-03-05
Bonck, Rodney H.
192 clutches and power-stop control
Clutches
Fluent material
251250, F16D 3102
Patent
active
054959268
ABSTRACT:
A hydraulic power transmission apparatus having improved valving for accurately regulating the flow of hydraulic material between a pair of cylinders in either of two opposite directions. The valve has a circularly cylindrical occluding member disposed in occluding position within the hydraulic material pathway connecting the two cylinders to separate the pathway into separate first and second sides. The occluding member seats loosely within a plurality of arcuate seating surfaces and is displaceable upon change in direction of flow of the hydraulic material, under the influence of the hydraulic material, from a first position in abutment with a first plurality of seating surfaces to a second position in abutment with a second plurality of seating surfaces. The occluding member is freely rotatable about its longitudinal axis within the seating surfaces and has at least one slot formed therein. The slot is moveable, upon rotation of the occluding member, from a first position in which the slot is in fluid communication with both the first and second sides of the housing pathway to allow the hydraulic material to flow between the first and second cylinders through the slot, to a second position in which the slot is out of fluid communication with at least one of the first and second sides of the pathway to that hydraulic material is prevented from flowing between the first and second cylinders. The power transmission is suitable for use as a bicycle transmission, light vehicle transmission, and wind power or natural force generator drives.
REFERENCES:
patent: 1466622 (1923-08-01), Hele-Shaw
patent: 1609429 (1926-12-01), Rockwell
patent: 1786356 (1930-12-01), McFarland
patent: 1952354 (1934-03-01), Bedford
patent: 2125617 (1938-08-01), Niemann
patent: 2153372 (1939-04-01), Hyde
patent: 2888118 (1959-05-01), Dymeck et al.
patent: 3083803 (1963-04-01), Gilles
patent: 3897933 (1975-08-01), Christenot
patent: 4795014 (1989-01-01), Rheingold
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