JPS60145277U - Fuel injection pump for internal combustion engines - Google Patents

Fuel injection pump for internal combustion engines

Info

Publication number
JPS60145277U
JPS60145277U JP1713585U JP1713585U JPS60145277U JP S60145277 U JPS60145277 U JP S60145277U JP 1713585 U JP1713585 U JP 1713585U JP 1713585 U JP1713585 U JP 1713585U JP S60145277 U JPS60145277 U JP S60145277U
Authority
JP
Japan
Prior art keywords
valve
fuel injection
valve seat
seat body
injection pump
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.)
Granted
Application number
JP1713585U
Other languages
Japanese (ja)
Other versions
JPH041338Y2 (en
Inventor
ヴアルター・ヘーフエレ
ラインハルト・シユヴアルツ
Original Assignee
ローベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ローベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング filed Critical ローベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング
Publication of JPS60145277U publication Critical patent/JPS60145277U/en
Application granted granted Critical
Publication of JPH041338Y2 publication Critical patent/JPH041338Y2/ja
Granted legal-status Critical Current

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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/04—Fuel-injection apparatus having means for avoiding effect of cavitation, e.g. erosion

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の燃料噴射ポンプの主要部の縦断面図、
第２図は弁閉鎖ばねの縦断面図である。 １０・・・ポンプハウジング、１１・・・孔、１２・・
・バレル、１３・・・プ□ランジャ、１４・・・等圧弁
、１６・・・ポンプ作業室、１７・・・接続通路、１８
・・・送出し弁、１９・・・吸もどし弁、２０・・・弁
座体、２１・・・弁板、２２・・・弁閉鎖ばね、２４・
・・中央孔、２５・・・貫通孔、２６・・・弁座、２８
・・・接続片、２９・・・中央孔、３０・・・スペーサ
リング、３１・・・中央孔、３２・・・内周壁、３３・
・・縦みぞ、３４・・・ラジアルみぞ、３６・・・高圧
レール、３７・・・曲げ縁部、３８・・・圧刻部。FIG. 1 is a longitudinal sectional view of the main parts of the fuel injection pump of the present invention.
FIG. 2 is a longitudinal sectional view of the valve closing spring. 10... Pump housing, 11... Hole, 12...
・Barrel, 13... Plunger, 14... Equal pressure valve, 16... Pump work chamber, 17... Connection passage, 18
... Delivery valve, 19 ... Suction return valve, 20 ... Valve seat body, 21 ... Valve plate, 22 ... Valve closing spring, 24.
...Central hole, 25...Through hole, 26...Valve seat, 28
... Connection piece, 29 ... Center hole, 30 ... Spacer ring, 31 ... Center hole, 32 ... Inner peripheral wall, 33 ...
... Vertical groove, 34... Radial groove, 36... High pressure rail, 37... Bent edge, 38... Embossed part.

Claims (1)

【実用新案登録請求の範囲】 １　内燃機関用の燃料噴射ポンプであって、ポンプハウ
ジング内に配置されたポンプ作業室と噴射７ゾルへ通ず
る噴射管上の間に接続された２つの弁を備え、一方の弁
が燃料圧送方向へ開く。 送出し弁であって、他方の弁が逆方向へ開く吸もどし弁
である形式のもやにおいて、両方の弁１８．１９は軸線
方向で相前後して配置されて妨−弄ぶ′、、Ｑ品；諜：
〒温！二 の円板型の弁閉鎖ばね２２とを有するプレート型又は皿
型の平座弁として構成されており、弁閉鎖ばね２２が同
時に吸もどし弁１９の弁部材−をなしていることを特徴
とする、燃料噴射ポンプ。　　　　　　　。 ２　送出し弁１８の弁座体２０が、弁軸線に対して半径
方向の間隔をおいて形成されて周方向で互いに位置をず
らされている複数め貫通孔２５□　　　　を有しており
、これらの貫通孔２５は一方では、　、　ポンプ作業室
１６に向かって開放されていて、他方では弁板２１によ
って閉鎖可能であり、弁、　座体２０の弁座側の端面に
、貫通孔２５の１つ□から弁板２１の閉鎖範囲の外側へ
通じていて戻し絞りとして作用する１つのラジア）しみ
ぞ３４が形成されており、弁板２１はリング円板として
構成されており、弁閉鎖ばね２２は中央穴２　　　４を
有していて外周部の範囲で１つの弁座２６に接触してお
り、接続片２８は噴射管と接続された１つの中央接続通
路１７を有しており、この接続通路１７の接続口は弁閉
鎖ばね２２の中−５。 央穴２４および弁板２１の中央穴２９と同列を　：なし
ている、実用新案登録請求の範囲第１項に記載の燃料噴
射ポンプ。 ３　弁座体２０と接続片２８との間に１つのスペーサリ
ング３０が配置されていて、このスペー。 サリング３０の中央穴３１内で弁板２１が中心位置ぎめ
されており、スペーサリング３０の内周壁３２に、弁座
体、２０内のラジアルみぞ３４　　、と接続された１つ
の縦みぞ３３が形成されている、実用新案登録請求の範
囲第２項に一記載の燃、料噴射ポンプ。 ４　スペーサリング３０は接続片２８又は弁座体２０と
一体に構成されている、実用新案登録請求の範囲第３項
に記載の燃料噴射ポンプ。 ５　接続片２８、スペーサリング３０、弁座体２０の３
つの部材が１つの高圧シール３６によって包囲されてお
り、この高圧シール３６は曲げ縁部３７によって弁座体
２０の自由端面１５をつかんでいると共に、圧刻部３８
によって粋続片２８と係合結合されている、実用新案登
録請求の範囲第３項又は第４項に記載の燃料噴射ポンプ
。[Claims for Utility Model Registration] 1. A fuel injection pump for an internal combustion engine, comprising two valves connected between a pump working chamber disposed in a pump housing and an injection pipe leading to an injection sol. , one valve opens in the fuel pumping direction. In hazes of the type in which the delivery valve is a draw-back valve which opens in the opposite direction, both valves 18, 19 are arranged one after the other in the axial direction to prevent interference. Goods; Intelligence:
〒Warm! It is configured as a plate-type or saucer-shaped flat-seat valve having two disc-shaped valve closing springs 22, and the valve closing spring 22 also serves as a valve member of the suction return valve 19. , fuel injection pump. . 2. The valve seat body 20 of the delivery valve 18 has a plurality of through holes 25□ which are formed at intervals in the radial direction with respect to the valve axis line and whose positions are shifted from each other in the circumferential direction. The through holes 25 are open towards the pump working chamber 16 on the one hand and can be closed by the valve plate 21 on the other hand, and one of the through holes 25 is formed on the end face of the valve seat body 20 on the valve seat side. A radial groove 34 is formed which leads from the opening to the outside of the closing area of the valve plate 21 and acts as a return throttle, the valve plate 21 being constructed as a ring disc and the valve closing spring 22 has a central bore 24 and contacts a valve seat 26 in the area of its outer periphery, and the connecting piece 28 has a central connecting channel 17 connected to the injection pipe, which connection The connection port of the passage 17 is inside the valve closing spring 22 -5. The fuel injection pump according to claim 1, wherein the central hole 24 and the central hole 29 of the valve plate 21 are in the same line. 3. A spacer ring 30 is arranged between the valve seat body 20 and the connecting piece 28, and this spacer ring 30 is arranged between the valve seat body 20 and the connecting piece 28. The valve plate 21 is centered within the central hole 31 of the spacer ring 30, and the inner circumferential wall 32 of the spacer ring 30 is formed with one longitudinal groove 33 connected to a radial groove 34 in the valve seat body 20. A fuel injection pump as set forth in claim 2 of the utility model registration claim. 4. The fuel injection pump according to claim 3, wherein the spacer ring 30 is integrally formed with the connecting piece 28 or the valve seat body 20. 5 Connection piece 28, spacer ring 30, valve seat body 20 3
The two parts are surrounded by a high-pressure seal 36 which grips the free end face 15 of the valve seat body 20 by means of a bent edge 37 and by a stamped part 38.
The fuel injection pump according to claim 3 or 4, wherein the fuel injection pump is engagedly connected to the connecting piece 28 by the following.
JP1713585U 1984-02-10 1985-02-12 Fuel injection pump for internal combustion engines Granted JPS60145277U (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8404020.3 1984-02-10
DE19848404020 DE8404020U1 (en) 1984-02-10 1984-02-10 Fuel injection pump for internal combustion engines

Publications (2)

Publication Number Publication Date
JPS60145277U true JPS60145277U (en) 1985-09-26
JPH041338Y2 JPH041338Y2 (en) 1992-01-17

Family

ID=6763406

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1713585U Granted JPS60145277U (en) 1984-02-10 1985-02-12 Fuel injection pump for internal combustion engines

Country Status (3)

Country Link
EP (1) EP0153491A1 (en)
JP (1) JPS60145277U (en)
DE (1) DE8404020U1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5287838A (en) * 1993-02-26 1994-02-22 Caterpillar Inc. Compact reverse flow check valve assembly for a unit fluid pump-injector

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1815254A1 (en) * 1968-12-18 1970-08-13 Maschf Augsburg Nuernberg Ag Device for equal pressure relief on fuel injection pump pressure lines

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB729763A (en) * 1952-07-21 1955-05-11 Napier & Son Ltd Improvements in surge reducing or pressure reducing valves for the fuel injection apparatus of internal combustion engines
WO1980002180A1 (en) * 1979-04-09 1980-10-16 Caterpillar Tractor Co Safety check valve for unit fuel pump-injector

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1815254A1 (en) * 1968-12-18 1970-08-13 Maschf Augsburg Nuernberg Ag Device for equal pressure relief on fuel injection pump pressure lines

Also Published As

Publication number Publication date
DE8404020U1 (en) 1985-06-13
JPH041338Y2 (en) 1992-01-17
EP0153491A1 (en) 1985-09-04

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