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US 5,672,134 AGranted
Shmelkin's planetary fluid dynamic coupling
OwnerMark Shmelkininventor
Life of this patent
Estimating the term…
Abstract
A coupling consisted of a compound carrier mounted on a drive shaft and a ring gear mounted on a driven shaft. Axles, on which planet gears and hermetically sealed hollow drums with inner radial blades are secured rotate freely in the carrier bearings. The drums are partly filled a fluid. The planet gears are inside the ring gear and in ingagement with it. The driven shaft angle velocity ranges from 0 to the drive shaft angle velocity. The coupling transfers a continuously varying torque from the drive shaft to the driven shaft.
Claims4
A planetary fluid dynamic coupling comprising:
- (A) a drive shaft,
- (B) a driven shaft,
- (C) a ring gear fixedly secured to said driven shaft,
- (D) a compound carrier including:
- (1) a drive flange fixedly secured to said drive shaft,
- (2) a carrying disc with first, second and third bosses, the carrying disc being fixedly secured to said drive flange through said first bosses,
- (3) a supporting disc fixedly secured to said carrying disc through said second bosses,
- (E) planetary elements mounted on said carrying and supporting discs and including:
- (1) journal bearings fixedly secured to said carrying and supporting discs,
- (2) axles freely rotating in said journal bearings,
- (3) planetary gears fixedly secured to said axles and engaged with said ring gear,
- (4) hermetically sealed hollow drums adapted for containing liquid, each drum having a plurality of radial blades fast therewith and equally spaced around its internal periphery, the drums being fixedly secured to the ends of said axles and partly filled with a fluid, the fluid in said drums being subjected to inertial forces when said planetary element is in motion and generating a torque on said blades of said drums which is transmitted onto said planetary gears through said axles and therefrom onto said ring gear, i.e. said driven shaft,
- (F) an overrunning coupling placed between said third bosses of said carrying disc and said ring gear for preventing said driven shaft from rotating at an angular velocity higher than that of said drive shaft.
10 more elements
Dependencies are inferred from the claim text.