Hydraulic control system with one-way orifice for automatic tran

Details Hydraulic control system with one-way orifice for automatic tran Hydraulic control system with one-way orifice for automatic tran

1997-02-24

1999-09-14

Hook, James F.

Pipes and tubular conduits

With flow regulators and/or baffles

Restrictors

138 46, F15D 108

Patent

active

059506784

ABSTRACT:
A hydraulic control system for automatic transmissions includes a separate plate interposed between valve bodies and formed with a first hole for fluid communication between the valve bodies. A cup is disposed in one of the valve bodies, having a bottom biased to contact the separate plate. The bottom of the cup is formed with a second hole which fluidly communicates with the first hole. The second hole is smaller in radial dimension than the first hole, and includes two truncated-cone holes with a minimum-diameter portion.

REFERENCES:
patent: 2919719 (1960-01-01), Boulet
patent: 2984261 (1961-05-01), Kates
patent: 3050086 (1962-08-01), Honsinger
patent: 3130747 (1964-04-01), Benaway
patent: 3426793 (1969-02-01), Klemm et al.
patent: 4383552 (1983-05-01), Baker
patent: 4437493 (1984-03-01), Okuda et al.
patent: 4860795 (1989-08-01), Oten
patent: 5323773 (1994-06-01), Kobayashi
patent: 5373873 (1994-12-01), Miller et al.

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