Parking brake for a power transmission

Details Parking brake for a power transmission Parking brake for a power transmission

1995-11-03

1997-04-15

Marmor, Charles A.

Planetary gear transmission systems or components

Fluid drive or control of planetary gearing

Fluid controlled mechanical clutch or brake

475116, 192 4A, F16H 146

Patent

active

056203861

ABSTRACT:
An automatic shifting power transmission has at least two selectively engageable devices which provide distinct gear ratios when engaged during normal operation. These devices are pressure released and mechanically engaged by springs to establish tie-up in the transmission when the hydraulic pressure is not present. This tie-up provides a parking condition in the transmission by preventing rotation of the transmission output member.

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patent: 5180038 (1993-01-01), Arnold et al.
patent: 5197355 (1993-05-01), Sherman et al.
patent: 5351570 (1994-10-01), Mizunuma et al.
patent: 5460578 (1995-10-01), Giuriati et al.
patent: 5526909 (1996-06-01), Ohkawa
patent: 5536220 (1996-07-01), Martin

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