192 clutches and power-stop control – Vortex-flow drive and clutch – With brake
Patent
1975-10-28
1977-05-10
Wyche, Benjamin W.
192 clutches and power-stop control
Vortex-flow drive and clutch
With brake
188354, 303100, B60K 2902, B60T 712
Patent
active
040223060
ABSTRACT:
A brake mechanism comprises a cylinder body having a large chamber and a small chamber, a power piston movably positioned in the large chamber and dividing it into a control chamber and a vacuum chamber in communication with each other, a hydraulic piston and a control valve having a communication orifice both of which are positioned in said small chamber of the cylinder body and moved by a power piston to divide the small chamber into a high pressure chamber communicating with a driving wheel brake cylinder, a buffer chamber having a communication opening for selectively communicating the buffer chamber with a brake cylinder in accordance with the operation of the control valve and a control chamber, a relay valve cylinder communicating at one end with air and at the other end with the vacuum chamber and having a communication orifice open to the control chamber in the large chamber, a relay valve piston provided within a relay valve cylinder such that it can be operated by a movable core of an electromagnet for opening and closing the communication opening on the relay valve cylinder, a detecting means connected to the solenoid of the electromagnet through a servo amplifier to detect the locking of the driving wheels, and a communicating means for communicating the non-driving wheel brake cylinder with a master cylinder.
REFERENCES:
patent: 2870885 (1959-01-01), McIntosh et al.
patent: 2881879 (1959-04-01), Perrino
patent: 3200914 (1965-08-01), Downs et al.
patent: 3592315 (1971-07-01), Lewis
patent: 3871497 (1975-03-01), Bessiere
Oujevolk George B.
Wyche Benjamin W.
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