192 clutches and power-stop control – Clutches – Operators
Patent
1981-07-06
1984-01-24
Murtagh, John E.
192 clutches and power-stop control
Clutches
Operators
192 88A, F16D 1348, F16D 1344
Patent
active
044271026
ABSTRACT:
A fluid engaged and spring returned fan clutch for connection with a live rotative source of power including an annular mounting flange for connection with the source of power. The mounting flange terminates in a hub. Also included is an annular friction flange connected to the hub. A first outer shell section is rotatively mounted on the hub and connected to a second outer shell section with fan blades connected thereto. A circular face plate is connected to the second outer shell. A circular piston is axially and slideably mounted on and within the second outer shell section and axially of the face plate thereby forming a cylinder void between the piston and the face plate. A circular resilient bladder member is secured at its peripheral edge portion between the second outer shell section and the face plate with the bladder adjacent the piston and opposed to the face plate. The piston has a ring of friction material connected thereto. A series of spaced springs are mounted between the first outer shell section and the piston for urging the ring of friction material from the friction flange. Fluid pressure is introduced by means of a rotary air union into the cylinder void between the face plate and the bladder to cause the friction material ring to engage the friction flange to thereby rotate the first and second outer shell sections and the fan blades carried thereby against the action of the springs.
REFERENCES:
patent: 3273470 (1966-09-01), Bradley
patent: 3505982 (1970-04-01), Walter et al.
patent: 3782516 (1974-01-01), Frisby et al.
patent: 4193485 (1980-03-01), Johns
patent: 4355710 (1982-10-01), Schilling
Chilcot Jr. Richard E.
Horton Industries, Inc.
Murtagh John E.
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