Fluid-pressure and analogous brake systems – Pulsation neutralizers
Patent
1997-06-13
1999-07-13
Schwartz, Christopher P.
Fluid-pressure and analogous brake systems
Pulsation neutralizers
138 30, 138 31, B60T 1704
Patent
active
059216360
ABSTRACT:
An attenuator for a hydraulic control unit of a vehicular braking system includes a hollow cylinder mounted in a bore of a housing. An end cap closes an outer end of the cylinder and does not extend beyond an outer wall of the housing. The cylinder and end cap define an interior chamber having an inner diameter tapered toward the end cap. An orifice is formed in the cylinder to permit fluid to exit the tapered interior chamber. An elastic core piece is fitted into the tapered interior chamber and substantially fills the volume of the chamber. An annular clearance is provided between the core piece and the cylinder. An inlet passage formed in the housing delivers fluid to the chamber. Fluid passes about the core piece to the orifice to reach the an outlet passage formed in the housing. Clearance between the core piece and the cylinder provides a streamlined path for fluid traveling from the inlet passage to the outlet passage, thereby decreasing fluid turbulence and aeration found in prior art attenuators.
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Kelsey-Hayes Company
Schwartz Christopher P.
Talayera Melanie
Tucker A. Michael
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