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1. (WO2018164023) HIGH-PRESSURE PUMP
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Pub. No.: WO/2018/164023 International Application No.: PCT/JP2018/008213
Publication Date: 13.09.2018 International Filing Date: 05.03.2018
IPC:
F02M 59/36 (2006.01) ,F02M 59/34 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
M
SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
59
Pumps specially adapted for fuel-injection and not provided for in groups F02M39/-F02M57/126
20
Varying fuel delivery in quantity or timing
36
by variably-timed valves controlling fuel passages
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
M
SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
59
Pumps specially adapted for fuel-injection and not provided for in groups F02M39/-F02M57/126
20
Varying fuel delivery in quantity or timing
34
by throttling of passages to pumping elements or of overflow passages
Applicants:
株式会社デンソー DENSO CORPORATION [JP/JP]; 愛知県刈谷市昭和町1丁目1番地 1-1, Showa-cho, Kariya-city, Aichi 4488661, JP
Inventors:
中岡 政治 NAKAOKA Masaharu; JP
Agent:
服部 雅紀 HATTORI Masaki; JP
Priority Data:
2017-04321307.03.2017JP
Title (EN) HIGH-PRESSURE PUMP
(FR) POMPE À HAUTE PRESSION
(JA) 高圧ポンプ
Abstract:
(EN) A discharge valve (70) has: a valve body (71) which has an outer edge in sliding contact with the inner peripheral wall of a cylinder section (41), is guided for axial movement, and is provided so as to be capable of coming into contact with a discharge valve seat (44); and a first passage (701) which is formed in the valve body (71) at a position between the valve body (71) and the inner peripheral wall of the cylinder section (41) and which is capable of allowing fuel on the discharge valve seat (44) side to flow in the direction away from the discharge valve seat (44). A stopper (80) has: a stopper body (81) formed from a separate member from the cylinder section (41) and is provided on the opposite side of the discharge valve (70) from the discharge valve seat (44); a movement restriction surface (800) capable of restricting the movement of the discharge valve (70) in the direction away from the discharge valve seat (44); and a second passage (802) formed in the stopper body (81) and capable of allowing fuel on the discharge valve (70) side to flow in the direction away from the discharge valve (70).
(FR) L'invention comprend une soupape (70) de refoulement comportant: un corps (71) de soupape qui présente un bord extérieur en contact glissant avec la paroi périphérique intérieure d'une section (41) de cylindre, est guidé en mouvement axial et est placé de façon à pouvoir entrer en contact avec un siège (44) de soupape de refoulement; et un premier passage (701) qui est formé dans le corps (71) de soupape au niveau d'une position entre le corps (71) de soupape et la paroi périphérique intérieure de la section (41) de cylindre et qui est capable de laisser s'écouler du carburant côté siège (44) de soupape de refoulement dans la direction s'éloignant du siège (44) de soupape de refoulement. Une butée (80) comprend: un corps (81) de butée formé d'un élément distinct de la section (41) de cylindre et placé du côté opposé de la soupape (70) de refoulement par rapport au siège (44) de soupape de refoulement; une surface (800) de limitation de mouvement capable de limiter le mouvement de la soupape (70) de refoulement dans la direction s'éloignant du siège (44) de soupape de refoulement; et un second passage (802) formé dans le corps (81) de butée et capable de laisser s'écouler du carburant côté soupape (70) de refoulement dans la direction s'éloignant de la soupape (70) de refoulement.
(JA) 吐出バルブ(70)は、外縁部が筒部(41)の内周壁に摺接し軸方向の移動が案内され吐出弁座(44)に当接可能に設けられるバルブ本体(71)、バルブ本体(71)のうち筒部(41)の内周壁との間に形成され吐出弁座(44)側の燃料を吐出弁座(44)とは反対側へ流通させることが可能な第1通路(701)を有している。ストッパ(80)は、筒部(41)とは別の部材で形成され吐出バルブ(70)に対し吐出弁座(44)とは反対側に設けられるストッパ本体(81)、吐出バルブ(70)の吐出弁座(44)とは反対方向への移動を規制可能な移動規制面(800)、ストッパ本体(81)に形成され吐出バルブ(70)側の燃料を吐出バルブ(70)とは反対側へ流通させることが可能な第2通路(802)を有している。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)