Submersible cover for a low pressure accumulator

Details Submersible cover for a low pressure accumulator Submersible cover for a low pressure accumulator

1996-09-20

1999-01-12

Young, Lee W.

Fluid-pressure and analogous brake systems

Speed-controlled

Having a valve system responsive to a wheel lock signal

303DIG11, 138 31, B60T 840

Patent

active

058577530

ABSTRACT:
An accumulator for an anti-lock brake system includes a valve body portion defining an accumulator chamber, an accumulator piston slidably disposed within the accumulator chamber, a spring, and a cover. The accumulator chamber has a fluid inlet for connection to a source of pressurized fluid at a first end of the chamber. The chamber has a second end open to atmosphere. The accumulator piston separates the first end of the chamber from the second end of the chamber. The spring is disposed in the accumulator chamber between the piston and the second end of the chamber and biases the piston toward a first position. The cover closes the second end of the chamber and atmosphere and has micro-porous structure. The micro-porous structure is configured to block water molecules and to pass constituent molecules of air, thereby enabling air to be communicated across while preventing the intrusion of water into the chamber through the second end.

REFERENCES:
patent: 5039176 (1991-08-01), Hellman et al.
patent: 5094599 (1992-03-01), Budecker
patent: 5172956 (1992-12-01), Klose et al.
patent: 5311910 (1994-05-01), Hasegawa et al.
patent: 5354187 (1994-10-01), Holland et al.
patent: 5365736 (1994-11-01), Yamamoto
patent: 5390989 (1995-02-01), Kim
patent: 5401086 (1995-03-01), Nishikimi et al.
patent: 5425573 (1995-06-01), Mirlocca
patent: 5460438 (1995-10-01), Hellmann et al.

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