Fluid pressurizing device

Details Fluid pressurizing device Fluid pressurizing device

B - Operations, Transporting

60

T

303/74

B60T 17/10 (2006.01) B60T 13/565 (2006.01) B60T 13/567 (2006.01) B60T 13/569 (2006.01)

Patent

CA 1198467

ABSTRACT OF THE DISCLOSURE A fluid pressurizing device 10 having a master cylinder 12 with a cylindrical projection 52 that extends through the housing of a brake booster 14. The housing of the brake booster 14 has a front shell 56 located on a shoulder 54 of the cylindrical projection 52 and a rear shell 140 located against a shoulder 150. A nut carried by the cylindrical projection 52 engages the rear shell 140 to compress a bead 111 of a diaphragm 110 against a shoulder 57 on the front shall 56. A sleeve 80 connected to a hub member 70 retains a bead 108 of diaphragm 110 and bead 90 of a diaphragm 92 connected to the cylindrical projection 52. In response to an input force, a valve assembly 136 controls the development of a pressure differential across the diaphragms 92 and 110. The pressure differential acts on and moves the diaphragms 92 and 110 toward the first shell 56. Movement of the diaphragms 92 and 110 is carried through the hub member 70 which moves in slots 62 and 64 in the cylindrical projection 52 to provide a piston assembly 30 in the master cylinder 12 with a force to pressurize fluid therein and develop an output fluid pressure to effect a brake application. Fig. 1

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