Motors: expansible chamber type – Three or more cylinders arranged in parallel radial or... – Radially disposed cylinders
Patent
1992-03-05
1993-11-23
Gluck, Richard E.
Motors: expansible chamber type
Three or more cylinders arranged in parallel radial or...
Radially disposed cylinders
180308, 180243, F01B 106
Patent
active
052634019
ABSTRACT:
A hydraulic regenerative braking and four wheel drive system for a vehicle is provided. The system includes a fluid accumulator, hydraulic units locating within vehicle wheels and comprising stationary members and cooperating rotary cams, filter assemblies, and spool valves for controlling the flow of fluid in the system. The system may be operated in a regenerative mode wherein at least some of the hydraulic units operate as pumps to provide high pressure fluid to the accumulator during vehicle deceleration or braking, and wherein at least some of the hydraulic units operate as motors, receiving high pressure fluid from the accumulator during vehicle acceleration. The system may also be operated in a four-wheel drive mode wherein a pair of hydraulic units, connected to a pair of mechanically driven wheels, act as pumps to drive a pair of hydraulic units, acting as motors, to rotate a pair of non-mechanically driven wheels. The hydraulic units include piston assemblies which serve both as pistons and as timing valves. Each stationary member has interconnected metallic cylinders and conduits which carry pressurized fluid. The interconnected cylinders and conduits form an insert which is cast within a lightweight metal to form a casting. Seals are provided to seal between laterally mating surfaces on the rotary cams and the stationary members.
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