Pumps – Expansible chamber type – Valved piston
Patent
1996-01-19
1996-10-08
Gluck, Richard E.
Pumps
Expansible chamber type
Valved piston
417552, F04B 2104
Patent
active
055624308
ABSTRACT:
A reciprocating piston pump element of a reciprocating piston pump having a piston, a cylinder with a formed-on cylinder head, an outlet valve which adjoins the cylinder head and an outlet valve housing that is secured in the cylinder head in order to form a structural unit. To reduce the amount of structural space required and to reduce the purchase price, the cylinder with the cylinder head and the region of the outlet valve housing enclosing the closure element are embodied in one piece, and in addition to a sealing ring, a further sealing ring of essentially the same diameter is disposed. As a result, a securing means in the form of a bead formed from the material of the housing block, oriented toward the outlet valve chamber, suffices to secure the reciprocating piston pump element inside the bore of the housing block. The reciprocating piston pump element can be used for space-saving, less expensive anti-lock systems in motor vehicle brake systems and can be expanded for traction control.
REFERENCES:
patent: 3682572 (1986-01-01), Yarger
patent: 4562798 (1986-01-01), van Os
patent: 5320498 (1994-06-01), Fuchida
Schuller Wolfgang
Seitz Stefan
Stade Horst
Gluck Richard E.
Greigg Edwin E.
Greigg Ronald E.
Robert & Bosch GmbH
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