HIGH-PRESSURE FUEL PUMP, IN PARTICULAR FOR A FUEL INJECTION DEVICE OF AN INTERNAL COMBUSTION ENGINE

HIGH-PRESSURE FUEL PUMP, IN PARTICULAR FOR A FUEL INJECTION DEVICE OF AN INTERNAL COMBUSTION ENGINE

The pump has at least one pump element (10) that includes a pump piston (12) which is driven in a reciprocating motion, is guided so as to be displaceable in a cylinder bore (18) of a housing part (20) of the pump, and delimits a pump working chamber (22) in said cylinder bore. The end of the pump p...

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1. Verfasser: KOEHLER, Achim
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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creator KOEHLER, Achim
description The pump has at least one pump element (10) that includes a pump piston (12) which is driven in a reciprocating motion, is guided so as to be displaceable in a cylinder bore (18) of a housing part (20) of the pump, and delimits a pump working chamber (22) in said cylinder bore. The end of the pump piston (12) facing away from the pump working chamber (22) protrudes from the cylinder bore (18). The housing part (20) has an at least approximately cylindrical section (50) which surrounds the end portion of the cylinder bore (18) facing away from the pump working chamber (22). A sealing ring (52), the inner circumference of which rests against the pump piston (12) by way of a sealing lip (54), is arranged on the end portion of the pump piston (12) protruding from the cylinder bore (18). The sealing ring (52) is placed in a receptacle (58, 60) of the pump housing part (20), said receptacle surrounding the end portion of the pump piston (12) protruding from the cylinder bore (18); the sealing ring (52) and the pump housing part (20) delimit a chamber (74; 76) in the direction of the cylinder bore (18), said chamber being connected to a fuel supply line (26). The fuel supply line (26) runs through the chamber (74; 76) such that fuel that leaks into the chamber (74; 76) is discharged from the chamber (74; 76) by the stream in the fuel supply line (26).
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The end of the pump piston (12) facing away from the pump working chamber (22) protrudes from the cylinder bore (18). The housing part (20) has an at least approximately cylindrical section (50) which surrounds the end portion of the cylinder bore (18) facing away from the pump working chamber (22). A sealing ring (52), the inner circumference of which rests against the pump piston (12) by way of a sealing lip (54), is arranged on the end portion of the pump piston (12) protruding from the cylinder bore (18). The sealing ring (52) is placed in a receptacle (58, 60) of the pump housing part (20), said receptacle surrounding the end portion of the pump piston (12) protruding from the cylinder bore (18); the sealing ring (52) and the pump housing part (20) delimit a chamber (74; 76) in the direction of the cylinder bore (18), said chamber being connected to a fuel supply line (26). The fuel supply line (26) runs through the chamber (74; 76) such that fuel that leaks into the chamber (74; 76) is discharged from the chamber (74; 76) by the stream in the fuel supply line (26).</description><language>eng ; fre ; ger</language><subject>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</subject><creationdate>2017</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20170712&amp;DB=EPODOC&amp;CC=EP&amp;NR=3189227A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,778,883,25547,76298</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20170712&amp;DB=EPODOC&amp;CC=EP&amp;NR=3189227A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KOEHLER, Achim</creatorcontrib><title>HIGH-PRESSURE FUEL PUMP, IN PARTICULAR FOR A FUEL INJECTION DEVICE OF AN INTERNAL COMBUSTION ENGINE</title><description>The pump has at least one pump element (10) that includes a pump piston (12) which is driven in a reciprocating motion, is guided so as to be displaceable in a cylinder bore (18) of a housing part (20) of the pump, and delimits a pump working chamber (22) in said cylinder bore. The end of the pump piston (12) facing away from the pump working chamber (22) protrudes from the cylinder bore (18). The housing part (20) has an at least approximately cylindrical section (50) which surrounds the end portion of the cylinder bore (18) facing away from the pump working chamber (22). A sealing ring (52), the inner circumference of which rests against the pump piston (12) by way of a sealing lip (54), is arranged on the end portion of the pump piston (12) protruding from the cylinder bore (18). The sealing ring (52) is placed in a receptacle (58, 60) of the pump housing part (20), said receptacle surrounding the end portion of the pump piston (12) protruding from the cylinder bore (18); the sealing ring (52) and the pump housing part (20) delimit a chamber (74; 76) in the direction of the cylinder bore (18), said chamber being connected to a fuel supply line (26). 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The end of the pump piston (12) facing away from the pump working chamber (22) protrudes from the cylinder bore (18). The housing part (20) has an at least approximately cylindrical section (50) which surrounds the end portion of the cylinder bore (18) facing away from the pump working chamber (22). A sealing ring (52), the inner circumference of which rests against the pump piston (12) by way of a sealing lip (54), is arranged on the end portion of the pump piston (12) protruding from the cylinder bore (18). The sealing ring (52) is placed in a receptacle (58, 60) of the pump housing part (20), said receptacle surrounding the end portion of the pump piston (12) protruding from the cylinder bore (18); the sealing ring (52) and the pump housing part (20) delimit a chamber (74; 76) in the direction of the cylinder bore (18), said chamber being connected to a fuel supply line (26). 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language eng ; fre ; ger
recordid cdi_epo_espacenet_EP3189227A1
source esp@cenet
subjects 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
title HIGH-PRESSURE FUEL PUMP, IN PARTICULAR FOR A FUEL INJECTION DEVICE OF AN INTERNAL COMBUSTION ENGINE
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