Accumulator piston for automotive transmission

Details Accumulator piston for automotive transmission Accumulator piston for automotive transmission

1988-05-31

1989-09-19

Braun, Leslie A.

192 clutches and power-stop control

Elements

Thrust members, retarders, and stops

138 31, 277236, F16D 2512

Patent

active

048672947

ABSTRACT:
In an automotive transmission, an improved accumulator of the piston-cylinder type. The piston and cylinder are formed of the same material, e.g., aluminum, whereby the two components thermally expand at the same rate, thereby providing leak-free operation over wide operating temperature ranges. Spring steel piston rings are used in pairs to provide redundant seals, thereby giving an added measure of seal assurance.

REFERENCES:
patent: 1773372 (1930-08-01), Nelson
patent: 3099172 (1963-07-01), Jania et al.
"Automatic Transmissions", Frank Thiessen and Davis Dales, Reston Publishing Co., Copyright 1984, pp. 8, 99, 100 and 236.
"1978 Arrow Colt Service Manual", Chrysler Corporation, pp. 9-35, 9-119.

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