Metal working – Method of mechanical manufacture – Repairing
Patent
1983-09-26
1986-10-21
Goldberg, Howard N.
Metal working
Method of mechanical manufacture
Repairing
180 701, B23P 700, B60K 1700
Patent
active
046177116
ABSTRACT:
In automatic transmissions for use in automobiles and other vehicles, the shaft on the forward pump cover is generally sealed with respect to the direct clutch housing by way of split seal rings, each fitting within an appropriate groove on the pump cover shaft. In most transmissions, these seal rings are cast iron rings elastically deformed during assembly and expanding outward in use to locate on and spin with the pump cover shaft. In one specific transmission, these seal rings are Teflon rings which cannot be replaced by cast iron rings, as cast iron rings do not have adequate elasticity to allow compression of the ring sufficient to pass through the direct clutch drum bushing without breaking the ring. In accordance with the present invention, that bushing is replaced with a different form of bushing, whereby the diameter of the bushing journal is substantially increased, thereby eliminating the need for excessive elastic deflection of the seal rings during assembly and allowing the replacement of the Teflon rings with suitable cast iron rings. Various forms of the invention are disclosed.
REFERENCES:
patent: 3747196 (1973-07-01), Whittington
"Hydraulic Drive", Audels New Automobile Guide .COPYRGT.1942, pp. 746-(36-41), Theo Audel & Co., Publishers, 49 West 23rd St., N.Y.
Motor Auto Repair Manual, 47th Ed. .COPYRGT.1983, 1st printing, publ. by Motor, 555 W. 57th St., N.Y. 10019.
Chilton's Auto Repair Manual, 1985, US & Cdn. 78-85, .COPYRGT.1984, published by Chilton Book Co., Radnor, Pa. 19089.
Goldberg Howard N.
Rising Vernon K.
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