Master Cylinder and Brake Booster Assembly
AssigneeRobert Bosch GmbH
InventorJohn E. Mackiewicz
Life of this patent
Estimating the term…
Abstract
A brake booster includes a housing, a retention cuff, and a spring. The housing defines a passage to an interior chamber. The retention cuff is positioned in the interior chamber about the passage. The spring engages the retention cuff in the interior chamber. The master cylinder arrangement includes a tube member and a brake fluid reservoir. The tube member includes a first end and a second end. The tube member extends through the passage and the retention cuff such that the first end of the tube member is exposed to the interior chamber of the brake booster. The brake fluid reservoir is in fluid communication with the tube member.
Claims20
A brake system comprising:
- a brake booster including
- a housing defining a passage to an interior chamber,
- a retention cuff positioned in the interior chamber about the passage, and
- a spring engaging the retention cuff in the interior chamber;
- and
- a master cylinder arrangement including
- a tube member having a first end and a second end, the tube member extending through the passage and the retention cuff such that the first end of the tube member is exposed to the interior chamber of the brake booster, and
- a brake fluid reservoir in fluid communication with the tube member.
A brake system comprising:
- a brake booster including a housing defining a passage to an interior chamber;
- a master cylinder arrangement including a tube member having a first opening at a first end and an opposing second opening at a second end, the tube member extending through the passage in the brake booster such that the first end of the tube member is exposed to the interior chamber of the brake booster;
- a brake fluid reservoir in fluid communication with the tube member;
- and
- a plug covering the second opening in the tube member, the plug including a brake line port configured to allow brake fluid to flow from an interior of the tube member to an exterior of the tube member.
The brake system 14 wherein the second opening in the tube member includes an interior collar and the plug is positioned within the tube member at second end of the tube member.
A method of forming a port in a master cylinder tube member comprising:
- engaging the master cylinder tube member with a support frame such that a first portion of the support frame is positioned within a channel of the master cylinder tube member and a second portion of the support frame is positioned to overlap a portion of an exterior surface of the master cylinder tube member;
- and
- piercing the tube member with a port forming member from within the channel to form a port in the master cylinder tube member, the port forming member being slidably received by the first portion of the support frame.
Dependencies are inferred from the claim text.