Raymond H Kosarski

US Patent:

52070611, May 4, 1993

Filed:

Feb 27, 1992

Appl. No.:

7/842824

Inventors:

Raymond Kosarski - Niles MI

Assignee:

Allied Signal Inc. - Morristown NJ

International Classification:

B60T 1300
B60T 1126

US Classification:

605471

Abstract:

The master cylinder (10) with externally adjusted secondary compensation comprises a tandem master cylinder (10) having primary and secondary piston assemblies (20, 30) disposed within a stepped bore (12). The portion of the bore containing the secondary piston assembly (30) has an enlarged diameter bore section (14) such that an end member (50) may be threadedly received within a bore opening (13) of the master cylinder (10). The end member (50) includes a longitudinal portion (55) having therein at least one outlet opening (60) and one compensation opening (58), each opening (58, 60) communicating with an interior opening (56) receiving slidably the secondary piston assembly (30) and a resilient spring (34) seated at one end of the interior opening (56) and biasing the secondary piston assembly (30). In order to adjust the position of the compensation opening (58) relative to a preferred position of the secondary piston assembly (30), the primary piston assembly (20) is held by a rod member (21) at a maximum at-rest position corresponding to a maximum at-rest booster output rod (43) position, while pressurized medium is transmitted to a secondary chamber outlet port (16) and flows to the reservoir (18). The end member (50) is threadedly advanced until the compensation opening (58) is closed off by a seal (32) of the secondary piston assembly (30) and pressurized medium flow blocked, and then rotated to retract the end member (50) a predetermined distance equal to the diameter of the compensation opening (58) so that flow is re-established.

US Patent:

60500891, Apr 18, 2000

Filed:

Jul 24, 1998

Appl. No.:

9/122254

Inventors:

Kenneth Scott Towers - Granger IN
Raymond Kosarski - Niles MI

Assignee:

Robert Bosch Corporation - Broadview IL

International Classification:

F16D 3100

US Classification:

60329

Abstract:

A remotely located brake booster for supplying an input force to a pressurizing device to develop pressurized fluid to effect a brake application. The brake booster responds to an actuation signal in the form of pressurized fluid being communicated from a control apparatus activated by an operator. The brake booster has a housing with a bore and a piston located therein to define an operational chamber. The housing has an inlet port through which pressurized fluid from the control apparatus is receiving by the operational chamber. The piston moves from a rest position to an actuation position in response to pressurized fluid being received in the operational chamber to produce the input force for operating the pressurizing device. The brake booster is characterized by an outlet port located in the housing for connecting the operational chamber with a reservoir to allow pressurized fluid to directly flow from the control apparatus to a reservoir by way of the operational chamber to modify the temperature of fluid therein to maintain the viscosity of the fluid at a level sufficient for the piston to return from an actuation position to the rest position within a desired time period and to remove any contamination, including air, that may be present in the operational chamber.

US Patent:

46793976, Jul 14, 1987

Filed:

Oct 15, 1985

Appl. No.:

6/787817

Inventors:

Raymond Kosarski - Niles MI
Robert W. Jackson - South Bend IN

Assignee:

Allied Corporation - Morristown NJ

International Classification:

B60T 1120
B60T 1358
B60T 1700
F15B 300

US Classification:

60562

Abstract:

The hydraulic power braking apparatus comprises a fluid power apparatus (10) receiving fluid pressure from a power steering apparatus of the vehicle, the fluid power apparatus (10) connected at one end to the brake pedal of the vehicle and at the other end to a master cylinder (110). The master cylinder (110) is connected to a fluid displacement multiplier (210), fluid pressure developed by the master cylinder being communicated to the fluid displacement multiplier (210). The fluid displacement multiplier (210) comprises a housing (212) having therein a stepped chamber (211) with a differential area piston (213), the differential area piston (213) having a through passage (240) controlled by a poppet valve (250). A fluid pressure line (31) communicates the working chamber (18) of the fluid power apparatus (10) with a variable volume chamber (290) of the displacement multiplier (210) so that when actuation of the brake system causes operation of the fluid power apparatus (10), fluid pressure in the working chamber (18) is communicated directly to the displacement multiplier (210) in order to provide an additional fluid power boost to the differential area piston (213) activated by output fluid pressure received from the master cylinder (110).