Device for damping pressure pulsations and a hydraulic unit...

Details Device for damping pressure pulsations and a hydraulic unit... Device for damping pressure pulsations and a hydraulic unit...

2006-11-07

2006-11-07

Fox, John (Department: 3753)

Pipes and tubular conduits

With flow regulators and/or baffles

Restrictors

C303S113100

Reexamination Certificate

active

07131463

ABSTRACT:
Pressure pulsations are damped in and a hydraulic unit by a device including a housing with an inlet and an outlet having a throttle and a filter preceding the throttle. The filter and the throttle are combined into a one-piece function element, which can be produced without metal-cutting machining and which can be fixed in the interior of the housing. This preceding filter prevents clogging of the throttle by contaminants in the pressure fluid, without requiring additional expense for parts or assembly. The function element can be produced economically in a minimum number of work steps, can be manipulated without problems, and in an advantageous refinement makes it possible to avoid unwanted accumulations of air in the device.

REFERENCES:
patent: 6398315 (2002-06-01), Dinkel et al.
patent: 6668863 (2003-12-01), Maier
patent: 6805160 (2004-10-01), Keichler
patent: 7004574 (2006-02-01), Neese et al.

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