CN1761814A - 带有蓄能式喷射系统的内燃机 - Google Patents

带有蓄能式喷射系统的内燃机 Download PDF

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CN1761814A
CN1761814A CNA2004800072748A CN200480007274A CN1761814A CN 1761814 A CN1761814 A CN 1761814A CN A2004800072748 A CNA2004800072748 A CN A2004800072748A CN 200480007274 A CN200480007274 A CN 200480007274A CN 1761814 A CN1761814 A CN 1761814A
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combustion engine
pressure
internal
cylinder
internal combustion
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CN1761814B (zh
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K·-U·芒克
R·普里尤斯
J·施卢特
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Kloeckner Humboldt Deutz AG
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00Other 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
    • F02M63/02Fuel-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
    • F02M63/0225Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
    • F02M63/023Means for varying pressure in common rails
    • F02M63/0235Means for varying pressure in common rails by bleeding fuel pressure
    • F02M63/025Means for varying pressure in common rails by bleeding fuel pressure from the common rail
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M39/00Arrangements of fuel-injection apparatus with respect to engines; Pump drives adapted to such arrangements
    • F02M39/02Arrangements of fuel-injection apparatus to facilitate the driving of pumps; Arrangements of fuel-injection pumps; Pump drives
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M55/00Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/02Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M55/00Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/02Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • F02M55/025Common rails
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02Pumps 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
    • F02M59/08Pumps 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 two or more pumping elements with conjoint outlet or several pumping elements feeding one engine cylinder
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02Pumps 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
    • F02M59/10Pumps 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
    • F02M59/102Mechanical drive, e.g. tappets or cams
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00Other 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
    • F02M63/02Fuel-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
    • F02M63/0225Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails

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

本发明涉及一种带有喷射系统的内燃机,该喷射系统配置成一高压蓄能器系统。本发明的目的在于开发一种带有高压蓄能式系统的内燃机,其零件数量少、喷射系统易于装配。为达成本发明目的,高压管线(13)的连接装置(12)相对于相关的喷射阀门侧向偏置、且对于内燃机同一汽缸排上的所有喷射阀,所述偏置的绝对量都是相同的。

Description

带有蓄能式喷射系统的内燃机
发明内容
本发明涉及一种带有喷射系统的内燃机,该喷射系统配置成一高压蓄压器系统,籍此使至少一个高压泵通过高压输送管线与带有连接装置的管状高压蓄能器连接,该连接装置与高压管线连接,要经喷射阀形成阀控流体连接,该喷射阀用在内燃机的气缸盖上,且突入由气缸、活塞和气缸盖形成的工作区域。
德国专利申请DE 19936534 A1公开了这种类型的内燃机。该内燃机设有一接在内燃机上的管状高压蓄能器。该管状高压蓄能器的特点在于在该高压蓄能器上形成一连续的连接带,否则在其上形成有连接装置,其宽度要能够使高压管线连接孔设置在连接装置的不同位置上。这样,就可以在类似的内燃机上使用高压蓄能系统。
本发明的目的在于,提供一种带有高压蓄能系统的内燃机,该系统的零件较少,便于喷射系统的装配。
为实现本发明的目的,连接装置以相对于相关的喷射阀侧向偏置,且所述偏置的绝对量对于内燃机一个汽缸排上的所有喷射阀都相同。连接装置相对于相关喷射阀(各喷射阀与电操作控制模块相配,且最好设置在相关的气缸的中间,最好在一个气缸排的汽缸的共用气缸盖里)侧向偏置使得喷射系统的零件装配时不存在任何问题。其原因正是由于,例如,设有高压连接装置(可以选择从气缸盖侧向引出)的喷射阀和该管状高压蓄能器先行组装,之后再把相应的高压管线设置在喷射阀之间、或者在高压管线连接器和高压蓄能系统之间,由于该连接器的侧向偏置从而使得装配毫无困难。基于这点,就要考虑高压蓄能系统应当尽量靠近喷射阀附近安装,以便使高压管线的长度缩短以建立一液压刚性喷射系统。由于同一汽缸排上的所有气缸的侧向偏置的绝对量都相同,尤其和气缸盖里喷射阀间的距离相匹配,故而至少所有的喷射管线的长度可以做成一样。这有利于调整喷射系统。
本发明的一实施例中,至少一个气缸在端部的偏置与其余气缸偏置的方向不同。这样的配置确保高压蓄能系统的设计紧凑,具体来说,其不会超出一个气缸排。
本发明的另一实施例中,内燃机的气缸排设有两种不同形状的高压管线。当喷射阀设有一侧向高压管线连接器,并且该连接器相对于气缸盖的横轴转动一个角度时就是这种情况。如果该高压管线连接装置的定位精确地与气缸盖的纵轴交叉,则在另外一实施例中所有高压管线的形状就可相同。
本发明的又一实施例中,至少一高压泵靠近一壳体中的气缸盖配置,最好靠近内燃机曲轴箱,并且该高压泵由一设置在内燃机的气体交换凸轮轴上的喷射泵凸轮带动。反过来,这种设置方式使内燃机的结构非常紧凑,具体来说,不需要为高压泵设置任何附加的驱动装置。
本发明的一改进之处在于,以一定的距离彼此相邻设置的两个高压泵和相邻的气缸相连。这样就可以使用小型、价廉的高压泵。而且使用两个高压泵可在高压蓄能器中建立起一压力均衡。
本发明的再一实施例中,连接高压泵和高压蓄能器的高压输送管线的配置相互相同。这样使得所需零件的数量减少到最小。
本发明的另一改进之处在于,用于控制或者调节高压蓄能器中待生产的燃油压力的控制模块设置在该至少一个高压泵的进口端。这里,控制模块设置为挨着一高压泵或者在两高压泵之间。作为一种变形,该控制模块可结合到燃油滤清器的支持架中。这一实施例可转化成一结构非常紧凑的喷射装置。
以下,将结合附图对本发明的一实例进行详细地叙述,而本明其他的一些优点也可以从中得出。
唯一的附图从总体上显示了本发明蓄能式喷射系统的主要组成部分。齿轮传动的燃油输送泵1通过加油管线2从油箱(图中未示)中将燃油输入到杯状的燃油滤清器4的支持架3内。经过燃油滤清器4的燃油通过输油管线5引入控制模块6中。控制模块6含有压力控制阀和零输送节流阀,该节流阀恒定地排出少量燃油,籍此使由压力控制阀和零输送节流阀排出的少量燃油进入回收管线9中。压力控制阀确定通过加油管线8输到两个高压泵7a,7b的燃油量。排出的燃油通过回收管线9返回到燃油滤清器4中的支持架3内。高压泵7a,7b通过相同配置的高压输送管线10a,10b连接到管状高压蓄能器11上。而且,在高压蓄能器11上设有连接装置12a,12b,12c,12d,12e,12f,它们再与高压管线13a,13b,13c,13d,13e,13d,13f固接,该高压管线不和喷射阀或者高压连接器(图中未示)连接。(在高压管线13a位于连接装置12a上的连接器对面的端部的情况时,显示有一环状开口,在气缸盖上形成,并和高压连接器相配)。高压蓄能器11通过紧固件14a,14b,14c固接在内燃机上,尤其是固定在气缸盖上。高压蓄能器11有一用于连接压力传感器15的连接器,在另一端则有一用于与回收管线9相连的排出管线16的连接器。限压阀17设置在排出管线16的上游处。
高压泵7a,7b直接安装在内燃机的曲轴箱里,并有滚轮挺杆18,它们在喷射泵凸轮上滚动,该喷射泵凸轮配置在气缸部件的气体交换凸轮之间的内燃机的曲轴上。此处,气体交换凸轮,喷射泵凸轮以及在气体交换凸轮后面的气缸部件的轴承部位无间断的形成一连续的单元。高压泵7a,7b各设有一由滚辆挺杆18中的之一驱动的柱塞。该柱塞设计成没有控制边缘,以致于只要供油足够,就总是输送预定量的燃油。综上所述,高压蓄能器11中的油压可由控制模块6的压力控制阀以控制输到高压泵7a,7b的燃油量的方式控制或者调节。在所示的实施例中,控制模块6设在高压泵7a,7b之间。在另一实施例中,该控制模块6还可结合到燃油滤清器4的支持架3内。

Claims (10)

1.一种带有喷射系统的内燃机,该喷射系统配置成一高压蓄能式系统,籍此使至少一高压泵通过高压输送管线和带有连接装置的管状的高压蓄能器连接,该连接装置和高压管线连接,用于要经喷射阀形成阀控流体连接,该喷射阀用在内燃机的气缸盖上,且突入由气缸、活塞和气缸盖组成的工作区域,其特征在于,连接装置(12a,12b,12c,12d,12e,12f)以相对于相关的喷射阀侧向偏置,且该偏移的绝对量对于内燃机的一汽缸排上所有的喷射阀,该偏置的绝对量都是相同的。
2.如权利要求1所述的内燃机,其特征在于,至少一气缸在末端的侧向偏置处于和其余气缸的侧向偏置的方向相反的位置。
3.如权利要求1或2所述的内燃机,其特征在于,一气缸排设有两组不同形状的高压管线(13a,13b,13c,13d,13e,13f)。
4.如权利要求1或2所述的内燃机,其特征在于,气缸排的高压管线(13a,13b,13c,13d,13e,13f)的配置相同。
5.如前述任意一项权利要求所述的内燃机,其特征在于,至少一个高压泵(7)靠近壳体中的汽缸盖,最好靠近内燃机的曲轴箱,并且该高压泵由设置在内燃机气体交换凸轮轴上的喷射泵凸轮来驱动。
6.如权利要求5所述的内燃机,其特征在于,两个以一定的距离彼此相邻的高压泵(7a,7b)和相邻的气缸相连。
7.如权利要求6所述的内燃机,其特征在于,高压输送管线(10a,10b)的配置相同。
8.如前述任意一项权利要求所述的内燃机,其特征在于,一用于控制或者调节高压蓄能器11中产生的油压的控制模块(6)设置在该至少一个高压泵(7)的进口端。
9.如权利要求8所述的内燃机,其特征在于,控制模块(6)以近于一高压泵(7)或者在两高压泵(7a,7b)之间配置。
10.如权利要求8所述的内燃机,其特征在于,控制模块(6)被结合到燃油输送泵(1)和该至少一个高压泵(7)之间配置的燃油滤清器(4)的支撑架(3)内。
CN2004800072748A 2003-03-28 2004-03-06 带有蓄能式喷射系统的内燃机 Expired - Fee Related CN1761814B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10314029.8 2003-03-28
DE10314029A DE10314029A1 (de) 2003-03-28 2003-03-28 Brennkraftmaschine mit einem Speichereinspritzsystem
PCT/EP2004/002312 WO2004085830A1 (de) 2003-03-28 2004-03-06 Brennkraftmaschine mit einem speichereinspritzsystem

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CN1761814A true CN1761814A (zh) 2006-04-19
CN1761814B CN1761814B (zh) 2011-04-27

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US (1) US7377263B2 (zh)
EP (1) EP1608869B1 (zh)
CN (1) CN1761814B (zh)
AT (1) ATE355456T1 (zh)
BR (1) BRPI0408901B1 (zh)
DE (2) DE10314029A1 (zh)
WO (1) WO2004085830A1 (zh)

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US10132282B2 (en) 2012-07-23 2018-11-20 Continental Automotive Gmbh Fuel rail assembly
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EP1608869A1 (de) 2005-12-28
US20060185649A1 (en) 2006-08-24
DE10314029A1 (de) 2004-10-07
WO2004085830A1 (de) 2004-10-07
ATE355456T1 (de) 2006-03-15
CN1761814B (zh) 2011-04-27
DE502004003042D1 (de) 2007-04-12
EP1608869B1 (de) 2007-02-28
BRPI0408901A (pt) 2006-03-28
BRPI0408901B1 (pt) 2013-04-02
US7377263B2 (en) 2008-05-27

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