High-pressure fuel pump

A fuel pump comprises a reciprocably-supported cylinder, a pressurizing chamber using part of the outer surface of the cylinder as the wall surface which move to change the internal volume, a fuel intake passage (10) forming a fuel passage which introduces fuel to the pressurizing chamber, a fuel di...

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Bibliographische Detailangaben
Hauptverfasser:	ODAKURA, HIROSHI, YAMADA, HIROYUKI, ONOSE, TORU, SAITO, ATSUJI, ABE, MASAMI, USUI, SATOSHI, KOTAKI, MASAYOSHI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF WEAPONS
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Beschreibung
Zusammenfassung:	A fuel pump comprises a reciprocably-supported cylinder, a pressurizing chamber using part of the outer surface of the cylinder as the wall surface which move to change the internal volume, a fuel intake passage (10) forming a fuel passage which introduces fuel to the pressurizing chamber, a fuel discharge passage (11) for the compressed fuel coming out from the pressurizing chamber. A fuel intake valve is provided in fuel intake passage (10). A fuel discharge valve is provided in said fuel discharge passage (11). A connecting passage (105) connects upstream side of the intake valve in the fuel intake passage (10) and the downstream side of it. A check valve (102a) which flows fuel from the fuel discharge flow passage (11) to the fuel intake passage (10) is provided in the connecting passage (105), whereby a metal seal (102b) is provided between the relief valve (102) and an inner wall surface of the passage (105).