Re-aspiration valve for master brake cylinders

Power plants – Pressure fluid source and motor – Pulsator

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Details

60562, 60592, 251127, 251339, B60T 1128, F15B 708

Patent

active

048889520

ABSTRACT:
A master brake cylinder including a re-aspiration valve which is disposed as a central valve in pistons of the master brake cylinder. The re-aspiration valve has a porous body, comprising porous metal, which forms a flat valve seat at one end. The sealing body of the re-aspiration valve is raised gently from the valve seat even at high ambient pressure, which makes a re-aspiration valve embodied in this way particularly suitable for use in master brake cylinders of brake systems having slip control. Because the porous body comprises porous metal which differs in length from its wall surface at one end to its axis to form a conical void space. The porous body has an axial flow resistance that decreases from the outside wall inward to its axis.

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patent: 4422875 (1983-12-01), Nakata et al.
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patent: 4531273 (1985-07-01), Smith et al.
patent: 4621498 (1986-11-01), Schaefer
patent: 4709551 (1987-12-01), Saalbach et al.

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