DAMPER MECHANISM AND HIGH PRESSURE FUEL SUPPLY PUMP

PROBLEM TO BE SOLVED: To obtain a damper mechanism having a small size and a high performance for reducing the pulsation of the low pressure side fuel of a high pressure fuel supply pump or the high pressure fuel supply pump having the damper mechanism having the small size and the high performance...

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Bibliographic Details
Main Authors HASHIDA MINORU, USUI SATOSHI
Format Patent
LanguageEnglish
Published 30.08.2007
Subjects
BLASTING
COMBUSTION ENGINES
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MECHANICAL ENGINEERING
SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To obtain a damper mechanism having a small size and a high performance for reducing the pulsation of the low pressure side fuel of a high pressure fuel supply pump or the high pressure fuel supply pump having the damper mechanism having the small size and the high performance in a high pressure fuel supply system. SOLUTION: The damper mechanism includes a metal diaphragm assembly 80 (also called two-sheet type metal diaphragm damper) in which two metal diaphragms are welded at entire peripheries sandwiched between the entire peripheries except the welded parts (for example, inner peripheral sides) or parts by a pressing member, and fixed to a storage container. The storage container is connected to a passage for introducing fuel from a suction joint of the pump, and to a low pressure passage having a suction valve installed therein. COPYRIGHT: (C)2007,JPO&INPIT
Bibliography:Application Number: JP20070106664