HIGH-PRESSURE FUEL PUMP

An object of the present invention is to reduce erosion due to cavitation in proximity to a valve seat in a high-pressure fuel supply pump including a fuel flow passage having a bent portion in proximity to the valve seat, formed therein. The high-pressure fuel supply pump includes fuel passages 10S...

Full description

Saved in:
Bibliographic Details
Main Authors TOKUO, Kenichirou, ARITOMI, Shunsuke, USUI, Satoshi, SAITO, Atsuji, SUGANAMI, Masayuki, KAWANO, Tatsuo
Format Patent
LanguageEnglish
French
German
Published 07.06.2017
Subjects
Online AccessGet full text

Cover

Loading…
Abstract An object of the present invention is to reduce erosion due to cavitation in proximity to a valve seat in a high-pressure fuel supply pump including a fuel flow passage having a bent portion in proximity to the valve seat, formed therein. The high-pressure fuel supply pump includes fuel passages 10S and 10P interconnecting with a pressurizing chamber of fuel in which volume varies due to reciprocating motion of a plunger to be in the reciprocation motion, and fluid valves 203 and 214S formed on the fuel passage. The fuel valves are included in a valve seat 214S and a valve member 203. The fuel passages include a gap passage portion 10S formed in a gap between the valve seat and the valve member, and a bent passage portion 10P extending in a bent direction on the downstream side of the gap passage portion. In a case where a backflow direction of the fuel is defined as a reference, in terms of a passage surface on the side of an inner circumference of a bent passage portion including the gap passage portion and the bent passage portion, a recess portion 214A is formed on an end portion on the upstream side of a passage surface 214D included in the side of the bent passage portion.
AbstractList An object of the present invention is to reduce erosion due to cavitation in proximity to a valve seat in a high-pressure fuel supply pump including a fuel flow passage having a bent portion in proximity to the valve seat, formed therein. The high-pressure fuel supply pump includes fuel passages 10S and 10P interconnecting with a pressurizing chamber of fuel in which volume varies due to reciprocating motion of a plunger to be in the reciprocation motion, and fluid valves 203 and 214S formed on the fuel passage. The fuel valves are included in a valve seat 214S and a valve member 203. The fuel passages include a gap passage portion 10S formed in a gap between the valve seat and the valve member, and a bent passage portion 10P extending in a bent direction on the downstream side of the gap passage portion. In a case where a backflow direction of the fuel is defined as a reference, in terms of a passage surface on the side of an inner circumference of a bent passage portion including the gap passage portion and the bent passage portion, a recess portion 214A is formed on an end portion on the upstream side of a passage surface 214D included in the side of the bent passage portion.
Author USUI, Satoshi
ARITOMI, Shunsuke
KAWANO, Tatsuo
SUGANAMI, Masayuki
SAITO, Atsuji
TOKUO, Kenichirou
Author_xml – fullname: TOKUO, Kenichirou
– fullname: ARITOMI, Shunsuke
– fullname: USUI, Satoshi
– fullname: SAITO, Atsuji
– fullname: SUGANAMI, Masayuki
– fullname: KAWANO, Tatsuo
BookMark eNrjYmDJy89L5WQQ9_B099ANCHINDg4NclVwC3X1UQgI9Q3gYWBNS8wpTuWF0twMCm6uIc4euqkF-fGpxQWJyal5qSXxrgHGBmYm5mYGjibGRCgBAGQmINI
ContentType Patent
DBID EVB
DatabaseName esp@cenet
DatabaseTitleList
Database_xml – sequence: 1
  dbid: EVB
  name: esp@cenet
  url: http://worldwide.espacenet.com/singleLineSearch?locale=en_EP
  sourceTypes: Open Access Repository
DeliveryMethod fulltext_linktorsrc
Discipline Medicine
Chemistry
Sciences
DocumentTitleAlternate HOCHDRUCKBRENNSTOFFPUMPE
POMPE À COMBUSTIBLE HAUTE-PRESSION
ExternalDocumentID EP3064760A4
GroupedDBID EVB
ID FETCH-epo_espacenet_EP3064760A43
IEDL.DBID EVB
IngestDate Fri Jul 19 15:05:02 EDT 2024
IsOpenAccess true
IsPeerReviewed false
IsScholarly false
Language English
French
German
LinkModel DirectLink
MergedId FETCHMERGED-epo_espacenet_EP3064760A43
Notes Application Number: EP20140858910
OpenAccessLink https://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20170607&DB=EPODOC&CC=EP&NR=3064760A4
ParticipantIDs epo_espacenet_EP3064760A4
PublicationCentury 2000
PublicationDate 20170607
PublicationDateYYYYMMDD 2017-06-07
PublicationDate_xml – month: 06
  year: 2017
  text: 20170607
  day: 07
PublicationDecade 2010
PublicationYear 2017
RelatedCompanies Hitachi Automotive Systems, Ltd
RelatedCompanies_xml – name: Hitachi Automotive Systems, Ltd
Score 3.090046
Snippet An object of the present invention is to reduce erosion due to cavitation in proximity to a valve seat in a high-pressure fuel supply pump including a fuel...
SourceID epo
SourceType Open Access Repository
SubjectTerms 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
Title HIGH-PRESSURE FUEL PUMP
URI https://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20170607&DB=EPODOC&locale=&CC=EP&NR=3064760A4
hasFullText 1
inHoldings 1
isFullTextHit
isPrint
link http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwfV1LT8MwDLbGQMANxmu81APqLWId6dIdKsTalILoVk0r2m1KmiDtMiZWxN_HibrBBW5RIjmJpS_-nNgOwI1QPrIgIYhiUhJKlSCSqpKovjblqpDgK-MoZsNeWtDnqT9twHydC2PrhH7Z4oiIqBLxXtnzevlziRXb2MrVrZxj1_t9Mgljt_aObS0Y5saDkOejeBS5UYQtdzgODdFmvc4D3YJtZNHMgIG_DkxSyvK3RUkOYCdHYYvqEBp60YK9aP3xWgt2s_q9G5s19FZHcJo-PabEKqwYcycp-IuTF1l-DE7CJ1FKcIbZZjcznm_WcncCTXTy9Rk4SNwo9bva62mPCt0RXl_SQAayG5RvAQva0P5TzPk_Yxewb9Rig5vYJTSrj099hWa0ktdWAd8w3HPT
link.rule.ids 230,309,783,888,25576,76876
linkProvider European Patent Office
linkToHtml http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwfV1LT8MwDLbGQIwbjNd49oB6i1i39LFDhVgfdNB21dSi3aqmDdIuY2JF_H2cqBtc4BYlkpNY-uLPie0A3BWVjiyoKEhlMkYorQrCaFWSasRFuSok-JVwFKPYCDL6PNfnLVhscmFkndAvWRwREVUi3mt5Xq9-LrFcGVu5vmcL7Hp_8FPbVRvvWNaCMVV3bHvJ1J06quNgS41ntiDaptF_pDuwiwzbFGDwXsciKWX126L4h7CXoLBlfQQtvuxCx9l8vNaF_ah578ZmA731MZwFk6eASIVlM0_xMy9UkixKTkDxvdQJCM6Qb3eTe8l2LcNTaKOTz89BQeJGqT7gmsE1WvB-oY0YtZjFBlb5ZplWD3p_irn4Z-wWOkEahXk4iV8u4UCoSAY6mVfQrj8--TWa1JrdSGV8A8lOdsY
openUrl ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fsummon.serialssolutions.com&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Apatent&rft.title=HIGH-PRESSURE+FUEL+PUMP&rft.inventor=TOKUO%2C+Kenichirou&rft.inventor=ARITOMI%2C+Shunsuke&rft.inventor=USUI%2C+Satoshi&rft.inventor=SAITO%2C+Atsuji&rft.inventor=SUGANAMI%2C+Masayuki&rft.inventor=KAWANO%2C+Tatsuo&rft.date=2017-06-07&rft.externalDBID=A4&rft.externalDocID=EP3064760A4