Spring and washer device

Details Spring and washer device Spring and washer device

1987-03-16

1987-12-08

Michalsky, Gerald A.

Fluid handling

Removable valve head and seat unit

13762565, 25112921, F15B 13044

Patent

active

047112654

ABSTRACT:
A combination spring and washer device which facilitates pin-type cantilever mounting of a solenoid valve having a tubular plastic body on a transmission control valve body. The plastic body of the solenoid valve has a relatively heavy coil at a coil end thereof and is plugged into a pressure bore in the control valve body so that the coil is supported in cantilever beam fashion. A minimum wall thickness flux gap portion of the plastic body is located between the control valve body and the coil end of the plastic body. The spring and washer device is snap fitted over the flux gap portion and includes a flat washer portion which bears against a flange on the plastic body on one side of the flux gap portion. The spring and washer device further includes a pair of integral spring arms which bear against the coil body which is disposed on the other side of the flux gap portion so that the flux gap portion is preloaded in tension. The magnitude of the preload is calculated to balance the dynamic beam bending forces which occur during normal vehicle operation due to the concentration of the mass of the coil at the coil end of the plastic body.

REFERENCES:
patent: 4376606 (1983-03-01), Peterson
patent: 4513780 (1985-04-01), Evans
patent: 4552179 (1985-11-01), Tarusawa et al.

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