JP6622359B2 - 内燃機関用の燃料噴射システム - Google Patents
内燃機関用の燃料噴射システム Download PDFInfo
- Publication number
- JP6622359B2 JP6622359B2 JP2018132394A JP2018132394A JP6622359B2 JP 6622359 B2 JP6622359 B2 JP 6622359B2 JP 2018132394 A JP2018132394 A JP 2018132394A JP 2018132394 A JP2018132394 A JP 2018132394A JP 6622359 B2 JP6622359 B2 JP 6622359B2
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- Japan
- Prior art keywords
- pressure
- valve
- hole
- region
- fuel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/46—Valves
- F02M59/462—Delivery valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
- F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
- F02M59/102—Mechanical drive, e.g. tappets or cams
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/46—Valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
- F02M63/0049—Combined valve units, e.g. for controlling pumping chamber and injection valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
- F02M63/005—Pressure relief valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
- F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
- F02M63/0265—Pumps feeding common rails
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/04—Check valves with guided rigid valve members shaped as balls
- F16K15/044—Check valves with guided rigid valve members shaped as balls spring-loaded
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/50—Arrangements of springs for valves used in fuel injectors or fuel injection pumps
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fuel-Injection Apparatus (AREA)
Description
Claims (6)
- 内燃機関用の燃料噴射システム(10)であって、
圧力室(30)を備えた燃料高圧ポンプ(18)を有し、前記圧力室(30)内で、運転時に、燃料(12)に高圧を付与するためにポンププランジャが運動するようになっており、
前記燃料高圧ポンプ(18)の下流側に接続された高圧領域(25)を有し、該高圧領域(25)に、前記燃料高圧ポンプ(18)が、高圧付与された前記燃料(12)を圧送するようになっており、
前記圧力室(30)を前記高圧領域(25)に接続するための弁装置(22)を有し、該弁装置(22)は流出弁(24)を有し、該流出弁(24)は、流出弁閉鎖エレメント(42)を備えており、該流出弁閉鎖エレメント(42)は、前記圧力室(30)から作用する押圧力に抗して、プリロードをかけられて流出弁座(46)に圧着されており、前記弁装置(22)は、圧力制限弁(38)をさらに有し、該圧力制限弁(38)は、圧力制限弁閉鎖エレメント(48)を備えており、該圧力制限弁閉鎖エレメント(48)は、前記高圧領域(25)から作用する押圧力に抗して、圧力制限弁座(50)に、プリロードをかけられて圧着されている、
燃料噴射システム(10)において、
前記流出弁(24)と前記圧力制限弁(38)とが、1つの共通の弁ハウジング(36)内で、それぞれ専用の収容孔(40)内に収容されており、該収容孔(40)は、前記弁ハウジング(36)の第1の長手方向端部(56)に配置された開口部表面(54)を起点として、ほぼ弁ハウジング長手方向軸線(52)に沿って、前記弁ハウジング(36)に突入するように延びており、
前記弁ハウジング(36)は、前記第1の長手方向端部(56)とは反対の側に配置された第2の長手方向端部(60)に、中央の流れ孔(62)を有しており、
前記収容孔(40)は、それぞれ、孔交差部(64)によって、前記流れ孔(62)に、前記流れ孔(62)との間で流体が流通するように接続されており、
前記収容孔(40)は、盲孔(58)として形成されており、互いに平行に、かつ前記弁ハウジング長手方向軸線(52)に対して平行に延びており、
前記収容孔(40)は、第1の孔直径(78)を備えた第1の孔領域(76)と、第2の孔直径(82)を備えた第2の孔領域(80)とを有しており、前記第2の孔直径(82)は、前記第1の孔直径(78)よりも小さく、それぞれ前記第2の孔領域(80)は、盲孔端部(88)を形成しており、前記収容孔(40)は、幾何学的に同一に形成されている、
燃料噴射システム(10)。 - 前記流れ孔(62)は、前記弁ハウジング長手方向軸線(52)を中心として対称に形成されており、前記収容孔(40)は、前記弁ハウジング長手方向軸線(52)を中心として対称に配置されていることを特徴とする、請求項1記載の燃料噴射システム(10)。
- 前記弁ハウジング(36)は、高圧蓄え管路(26)を前記燃料高圧ポンプ(18)のハウジングに接続するための高圧接続部(34)によって形成されていることを特徴とする、請求項1または2記載の燃料噴射システム(10)。
- 前記高圧接続部(34)は、該高圧接続部(34)を前記燃料高圧ポンプ(18)の前記ハウジングに高圧密に取り付けるための第1の取付け領域(90)と、前記高圧蓄え管路(26)を前記高圧接続部(34)に接続するための第2の取付け領域(92)とを有し、前記第1の取付け領域(90)は、前記弁ハウジング(36)の前記第1の長手方向端部(56)に形成されており、前記第2の取付け領域(92)は、前記弁ハウジング(36)の前記第2の長手方向端部(60)に形成されていることを特徴とする、請求項3記載の燃料噴射システム(10)。
- 前記高圧接続部(34)は、前記弁ハウジング長手方向軸線(52)に沿って、第1の接続部直径(70)を有する第1の高圧接続部領域(66)と、第2の接続部直径(72)を有する第2の高圧接続部領域(68)とを有し、前記第2の接続部直径(72)は、前記第1の接続部直径(70)よりも小さく、前記収容孔(40)は、前記第1の高圧接続部領域(66)にのみ配置されていることを特徴とする、請求項3または4記載の燃料噴射システム(10)。
- 前記流れ孔(62)は、前記第2の高圧接続部領域(68)に配置されていて、該第2の高圧接続部領域(68)から、前記第1の高圧接続部領域(66)に突入して延びていることを特徴とする、請求項5記載の燃料噴射システム(10)。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017211981.0A DE102017211981B3 (de) | 2017-07-13 | 2017-07-13 | Kraftstoffeinspritzsystem für eine Brennkraftmaschine |
DE102017211981.0 | 2017-07-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2019019824A JP2019019824A (ja) | 2019-02-07 |
JP6622359B2 true JP6622359B2 (ja) | 2019-12-18 |
Family
ID=63450595
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018132394A Expired - Fee Related JP6622359B2 (ja) | 2017-07-13 | 2018-07-12 | 内燃機関用の燃料噴射システム |
Country Status (5)
Country | Link |
---|---|
US (1) | US20190017481A1 (ja) |
JP (1) | JP6622359B2 (ja) |
KR (1) | KR20190008097A (ja) |
CN (1) | CN109253006A (ja) |
DE (1) | DE102017211981B3 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11015558B2 (en) * | 2019-02-15 | 2021-05-25 | Delphi Technologies Ip Limited | Combination outlet valve and pressure relief valve and fuel pump using the same |
DE102020208847A1 (de) * | 2020-07-15 | 2022-01-20 | Robert Bosch Gesellschaft mit beschränkter Haftung | Hochdruck-Kraftstoffpumpe für ein Kraftstoff-Einspritzsystem einer Brennkraftmaschine |
CN115898730B (zh) * | 2022-11-08 | 2023-06-13 | 哈尔滨工程大学 | 一种应用于定容弹的船用重油蓄压器装置 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3424401A1 (de) | 1984-07-03 | 1986-01-09 | Robert Bosch Gmbh, 7000 Stuttgart | Gleichdruckventil fuer kraftstoffeinspritzpumpen |
JPH0310378Y2 (ja) * | 1985-04-17 | 1991-03-14 | ||
DE19746490A1 (de) * | 1997-10-22 | 1999-04-29 | Bosch Gmbh Robert | Kraftstoffeinspritzanlage für eine Brennkraftmaschine |
DE19747268A1 (de) * | 1997-10-25 | 1999-04-29 | Bosch Gmbh Robert | Zweistoffdüse zur Einspritzung von Kraftstoff und einer Zusatzflüssigkeit |
US7216635B1 (en) * | 2004-09-30 | 2007-05-15 | Walbro Engine Management, L.L.C. | Evaporative emission controls in a fuel system |
DE102013204563A1 (de) * | 2013-03-15 | 2014-09-18 | Robert Bosch Gmbh | Kraftstoff-Hochdruckpumpe mit einem zwischen einem Förderraum und einem Auslass angeordneten Auslassventil |
JP5920636B2 (ja) * | 2013-09-13 | 2016-05-18 | 株式会社デンソー | 高圧ポンプ |
DE102014225642B4 (de) * | 2014-12-12 | 2016-06-30 | Continental Automotive Gmbh | Ventilanordnung und Hochdruckpumpe für ein Kraftstoffeinspritzsystem einer Brennkraftmaschine |
DE102015215186B3 (de) * | 2015-08-10 | 2016-12-15 | Continental Automotive Gmbh | Kraftstoffhochdruckpumpe |
DE102016217923B3 (de) * | 2016-09-19 | 2018-02-08 | Continental Automotive Gmbh | Rückschlagventil, hochdruckführendes Bauteil und Kraftstoffhochdruckpumpe |
DE102017205949B3 (de) * | 2017-04-07 | 2018-09-27 | Continental Automotive Gmbh | Ventilanordnung für ein Kraftstoffeinspritzsystem einer Brennkraftmaschine |
-
2017
- 2017-07-13 DE DE102017211981.0A patent/DE102017211981B3/de active Active
-
2018
- 2018-07-02 KR KR1020180076528A patent/KR20190008097A/ko active Search and Examination
- 2018-07-11 US US16/033,095 patent/US20190017481A1/en not_active Abandoned
- 2018-07-12 JP JP2018132394A patent/JP6622359B2/ja not_active Expired - Fee Related
- 2018-07-13 CN CN201810769528.3A patent/CN109253006A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
US20190017481A1 (en) | 2019-01-17 |
DE102017211981B3 (de) | 2018-09-27 |
KR20190008097A (ko) | 2019-01-23 |
JP2019019824A (ja) | 2019-02-07 |
CN109253006A (zh) | 2019-01-22 |
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