RATE OF FLOW CONTROL DEVICE

PURPOSE:To absorb ripples on a pressure fluid in a wide range of frequencies by furnishing a housing with a fluid passage which opens to a valve accommodation hole before a throttle passage and is opened and closed under control by a spool valve, putting an accumulator to absorb the ripples in commu...

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Bibliographic Details
Main Author KATOU TOSHIYA
Format Patent
LanguageEnglish
Published 15.04.1991
Subjects
BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS
ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS
WEAPONS
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Summary:PURPOSE:To absorb ripples on a pressure fluid in a wide range of frequencies by furnishing a housing with a fluid passage which opens to a valve accommodation hole before a throttle passage and is opened and closed under control by a spool valve, putting an accumulator to absorb the ripples in communication with this fluid passage, and making variable the damping frequency of the accumulator. CONSTITUTION:As a rise in the frequency of a pump increases the discharge amount, a spool valve 7 is slided according to the pressure difference between in front of and behind a throttle passage 3, and a bypass 5 is opened to feed back the surplus flow to a ring-shaped passage 16. Therein the spool valve 7 slides in the direction of opening a fluid passage 2, so that an accumulator can absorb ripples on a pressure fluid in a high frequency range.
Bibliography:Application Number: JP19890226268