CN104100429A - 燃料供应系统 - Google Patents

燃料供应系统 Download PDF

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CN104100429A
CN104100429A CN201410200384.1A CN201410200384A CN104100429A CN 104100429 A CN104100429 A CN 104100429A CN 201410200384 A CN201410200384 A CN 201410200384A CN 104100429 A CN104100429 A CN 104100429A
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pressure
valve
accumulation unit
accumulation
fuel
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CN104100429B (zh
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W·瓦格纳
R·施特罗贝尔
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MAN Energy Solutions SE
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MAN Diesel and Turbo SE
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    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • F02M55/025—Common rails
    • 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
    • F02M63/0275—Arrangement of common rails
    • 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
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/08—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for non-gaseous fuels
    • F02M21/10—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for non-gaseous fuels for fuels with low melting point, e.g. apparatus having heating means
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
    • F02M37/0023—Valves in the fuel supply and return system
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0047—Layout or arrangement of systems for feeding fuel
    • F02M37/007—Layout or arrangement of systems for feeding fuel characterised by its use in vehicles, in stationary plants or in small engines, e.g. hand held tools
    • 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
    • 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
    • F02M63/0003—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure
    • F02M63/0007—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure using electrically actuated 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
    • F02M63/0012—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
    • F02M63/0052—Pressure relief valves with means for adjusting the opening pressure, e.g. electrically controlled
    • 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
    • F02M63/027—More than one high pressure pump feeding a single common rail
    • 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
    • F02M63/0275—Arrangement of common rails
    • F02M63/0285—Arrangement of common rails having more than one common rail
    • F02M63/029—Arrangement of common rails having more than one common rail per cylinder bank, e.g. storing different fuels or fuels at different pressure levels per cylinder bank
    • 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
    • F02M2200/24—Fuel-injection apparatus with sensors
    • F02M2200/247—Pressure sensors
    • 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
    • F02M2200/24—Fuel-injection apparatus with sensors
    • F02M2200/248—Temperature sensors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/30—Use of alternative fuels, e.g. biofuels

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

本发明涉及一种燃料供应系统，特别是被设计成船舶柴油发动机的内燃机的共轨燃料供应系统，其具有低压区，低压区具有泵送装置，以便将燃料从低压区输送到高压区中，其中，在泵送装置和分配给气缸的喷射器之间的高压区中，提供永久地处于高压下的蓄压系统，其包括经高压管线联接的蓄压单元，其中蓄压系统经同样永久地处于高压下的至少一个高压管线连接到泵送装置，其中蓄压系统经根据喷射循环而偶尔处于高压下的高压管线连接到喷射器，其中限压阀和冲洗阀与蓄压系统的蓄压单元中的一个相互作用，并且其中对与限压阀和冲洗阀相互作用的蓄压单元分配阀块，阀块直接对蓄压单元起作用并容纳限压阀和冲洗阀。

Description

燃料供应系统
技术领域
本发明涉及根据权利要求1的前序部分所述的内燃机的燃料供应系统。本发明还涉及这样的燃料供应系统的蓄压单元、限压阀和冲洗阀的组件。
背景技术
图1示出了现有技术中公知的内燃机的共轨燃料供应系统的基本构造。所述构造从DE10157135B4中获知。因此，图1的共轨燃料供应系统包括各自用于内燃机的各个气缸的至少一个喷射器1。通过喷射器1，燃料可被喷入内燃机的各个气缸中。共轨燃料供应系统还包括泵送装置3，泵送装置3包括至少一个低压泵5、至少一个高压泵2和高压泵蓄压单元8，以便将燃料从共轨燃料供应系统的低压区4输送到共轨燃料供应系统的高压区6，其中在泵送装置3和喷射器1之间的高压区6中，提供永久地处于高压下的蓄压系统7。永久地处于高压下的蓄压系统7(其也被描述为共轨)包括多个蓄压单元9。蓄压单元9通过永久地处于高压下的高压管线10连接到泵送装置3并相互连接。蓄压系统7(即蓄压单元9)还通过根据喷射循环而偶尔处于高压下的高压管线11连接到喷射器1。对根据喷射循环而偶尔处于高压下的、使喷射器1与蓄压单元9连接的高压管线11分配根据喷射循环而对喷射器1馈送燃料的切换阀12。
从DE10157135B4进一步知道的是，对蓄压系统7的蓄压单元9中的一个分配限压阀13和冲洗阀14。在实际公知的燃料供应系统的情况下，限压阀13和冲洗阀14一方面通过高压管线15、16联接到蓄压单元9，另一方面通过低压管线17、18联接到燃料供应系统的低压区4。
限压阀13和冲洗阀14通过高压管线15、16而与蓄压单元9进行管道连接是不利的，因为由于这样，会产生额外的密封点。另外，燃料供应系统的上述构件的管道连接产生一种需要很多安装空间的构造复杂的燃料供应系统。由于管道连接，导致接近燃料供应系统的单独的构件更加困难。
发明内容
因此，本发明的目的在于产生一种新型的内燃机燃料供应系统以及这种燃料供应系统的蓄压单元、限压阀和冲洗阀的一种组件。
通过根据权利要求1所述的内燃机燃料供应系统实现所述目标。
根据本发明，与限压阀和冲洗阀相互作用的蓄压单元具有直接对蓄压单元起作用并容纳限压阀和冲洗阀的阀块(valve block)。
对于本发明而提出，对与限压阀和冲洗阀相互作用的蓄压单元分配阀块，阀块直接对蓄压单元起作用并容纳限压阀和冲洗阀两者。因此，燃料供应系统的限压阀、冲洗阀和蓄压单元之间的高压管线被省略。因此，燃料供应系统中密封点的数量被减少。另外，燃料供应系统的构造被简化。对燃料供应系统的单独的构件的可接近性被提高。
根据有利的进一步发展，阀块容纳至少一个压力传感器，优选是两个冗余运行的压力传感器。优选地，阀块还容纳温度传感器，即与限压阀相互作用的第一温度传感器和与冲洗阀相互作用的第二温度传感器。特别地，阀块还容纳泄漏检测装置。借助于此，燃料供应系统的构造可进一步简化。特别地，当所述或各个压力传感器和温度传感器被阀块直接容纳时，使用所述或各个压力传感器和温度传感器所提供的测量值的控制的响应行为被改善。
根据有利的进一步发展，阀块包括高压孔系统，蓄压单元的存储空间通过该高压孔系统在不进行管道连接的情况下联接到限压阀、冲洗阀和所述或各个压力传感器。优选地，阀块还包括低压孔系统，温度传感器通过该低压孔系统在不进行管道连接的情况下联接到限压阀和冲洗阀。低压孔系统与经历限压阀和冲洗阀的中间连接的高压孔系统分开。
这种构造是尤其优选的。阀块的高压孔系统和低压孔系统取代了通过根据现有技术的在上述构件之间所需要的高压管线和低压管线进行的管道连接。
特别地，阀块包括泄漏孔系统，泄漏孔系统在不进行管道连接的情况下联接到泄漏检测装置，其中泄漏孔系统与低压孔系统和高压孔系统分开。
这种燃料供应系统的蓄压单元、限压阀和冲洗阀的根据本发明的组件在权利要求10中限定。
附图说明
通过从属权利要求和下面的描述获得本发明的优选的进一步发展。在附图的帮助下更详细描述本发明的示例性实施例，但不限于此。其中：
图1显示燃料供应系统的图；
图2显示根据本发明的燃料供应系统的细节。
参考标号列表：
1 喷射器
2 高压泵
3 泵送装置
4 低压区
5 低压泵
6 高压区
7 蓄压系统
8 高压泵蓄压单元
9 蓄压单元
10 高压管线
11 高压管线
12 切换阀
13 限压阀
14 冲洗阀
15 高压管线
16 高压管线
17 低压管线
18 低压管线
19 阀块
20 压力传感器
21 温度传感器
22 温度传感器
23 泄流道
24 泄漏检测装置
具体实施方式
本发明涉及特别设计成大型柴油发动机或船舶柴油发动机的内燃机的燃料供应系统，特别是共轨燃料供应系统。这种燃料供应系统的基本构造已经参考图1进行描述。
本发明涉及燃料供应系统的细节，借助于燃料供应系统，在与限压阀13和冲洗阀14相互作用的蓄压器9的区域中，可减少管道连接工作。关于这方面的细节在后面参考图2进行描述。
因此，图2示出了对与限压阀13和冲洗阀14相互作用的蓄压单元9分配阀块19，其中蓄压单元9直接对阀块19起作用，其中阀块19还容纳或承载限压阀13和冲洗阀14。
另外，阀块19容纳至少一个压力传感器20，借助于压力传感器，可通过测量来检测蓄压单元9的储存空间中存在的系统压力，以便根据这个系统压力控制泵送装置3的运行。优选地，阀块19容纳两个这种压力传感器20，它们冗余地检测蓄压单元9的储存空间中存在的系统压力。
为了将蓄压单元9和限压阀13、冲洗阀14和所述或各个压力传感器20直接连接到阀块19，阀块19包括高压孔系统，蓄压单元9的存储空间可通过该高压孔系统在不进行管道连接的情况下联接到限压阀13、冲洗阀14和所述或各个压力传感器20。
另外，阀块19容纳温度传感器21，22，即与限压阀13相互作用的第一温度传感器22，以及与冲洗阀14相互作用的第二温度传感器21。
特别地，当限压阀13或冲洗阀14打开时，可通过与相应的阀13、14相互作用的温度传感器21、22检测相应的阀13、14的开度。
除了高压孔系统，阀块19包括低压孔系统，温度传感器21和22通过该低压孔系统在不进行管道连接的情况下联接到限压阀13和冲洗阀14，使得在低压区中，第一温度传感器22定位在限压阀13的下游不远处而第二温度传感器21定位在冲洗阀14的下游不远处。
低压孔系统与经历限压阀13和冲洗阀14的中间连接的高压孔系统分开。
低压孔系统包括用于限压阀13和冲洗阀14的燃料公共泄流道(drain)23，其通往燃料供应系统的低压区4。
另外，分配给蓄压单元9的阀块19容纳泄漏检测装置24，为此，除了高压孔系统和低压孔系统外，阀块19还包括泄漏孔系统，泄漏孔系统在不进行管道连接的情况下联接到泄漏检测装置24。
泄漏孔系统与低压孔系统和高压孔系统分开。
通过本发明，燃料供应系统(即大型柴油发动机或船舶柴油发动机的共轨燃料供应系统)的构造可显著简化。
因此，直接容纳限压阀13和冲洗阀14的阀块19可直接联接到蓄压单元9，即联接到蓄压单元的储存空间。因此，阀块19和蓄压单元9之间的高压管线以及通往阀13和14的高压管线可被省略。
另外，温度传感器21和22被集成到阀块19或直接由阀块容纳。因此，对温度传感器21和22输送燃料的燃料管线可被省略。
另外，通过泄漏检测装置进行的泄漏检测优选地集成在阀块19中。这保证燃料供应系统的设计结构的进一步简化。
本发明还涉及图2中所示的蓄压单元9、阀块19和阀门13和14的组件，其中所述组件优选还包含所述或各个压力传感器20、温度传感器21和22以及泄漏检测装置24。
通过本发明，实际中已知的燃料供应系统为了将限压阀13、冲洗阀14、所述或各个压力传感器20和温度传感器21、22联接到蓄压单元9所需要的很多管道连接可被省略。
实现这一点，是因为在直接对与上述组件相互作用的蓄压单元9起作用的阀块19中集成了多种功能，即阀13和14的功能、各个压力传感器20的功能、温度传感器21和22的功能，以及泄漏检测的功能。因此，不仅燃料供应系统中的密封点的数量被减少，燃料供应系统的额外构件或组件也更容易接近。

Claims (11)

1.一种燃料供应系统，特别是被设计成船舶柴油发动机的内燃机的共轨燃料供应系统，其具有低压区(4)，所述低压区(4)具有泵送装置(3)，以便将燃料从所述低压区(4)输送到高压区(6)中，其中，在所述泵送装置(3)和分配给气缸的喷射器(1)之间的高压区(6)中，提供了永久地处于高压下的蓄压系统(7)，其包括经高压管线(10)联接的蓄压单元(9)，其中所述蓄压系统(7)经同样永久地处于高压下的至少一个高压管线(10)连接到所述泵送装置(3)，其中所述蓄压系统(7)经根据喷射循环而偶尔处于高压下的高压管线(11)连接到所述喷射器(1)，并且其中限压阀(13)和冲洗阀(14)与所述蓄压系统(7)的蓄压单元(9)中的一个相互作用，其特征在于，对与所述限压阀(13)和所述冲洗阀(14)相互作用的蓄压单元(9)分配阀块(19)，所述阀块(19)直接对所述蓄压单元(9)起作用并容纳所述限压阀(13)和所述冲洗阀(14)。
2.根据权利要求1所述的燃料供应系统，其特征在于，所述阀块(19)还容纳至少一个压力传感器(20)，优选两个冗佘运行的压力传感器。
3.根据权利要求2所述的燃料供应系统，其特征在于，所述阀块(19)包括高压孔系统，所述蓄压单元(9)的存储空间通过所述高压孔系统在不进行管道连接的情况下联接到所述限压阀(13)、所述冲洗阀(14)和所述压力传感器(20)或各个压力传感器(20)。
4.根据权利要求1至3中的任一项所述的燃料供应系统，其特征在于，所述阀块(19)容纳温度传感器(21，22)，即与所述限压阀(13)相互作用的第一温度传感器(22)和与所述冲洗阀(14)相互作用的第二温度传感器(21)。
5.根据权利要求4所述的燃料供应系统，其特征在于，所述阀块(19)包括低压孔系统，所述温度传感器(21，22)通过所述低压孔系统在不进行管道连接的情况下联接到所述限压阀(13)和所述冲洗阀(14)，使得在所述低压孔系统的区域中，所述第一温度传感器(22)定位在所述限压阀(13)的下游不远处而所述第二温度传感器(21)定位在所述冲洗阀(14)的下游不远处。
6.根据权利要求5所述的燃料供应系统，其特征在于，用于所述限压阀(13)和所述冲洗阀(14)的低压孔系统包括通往所述低压区(4)的公共泄流道(23)。
7.根据权利要求5或6所述的燃料供应系统，其特征在于，所述低压孔系统与经历所述限压阀(13)和所述冲洗阀(14)的中间连接的高压孔系统分开。
8.根据权利要求1至6中的任一项所述的燃料供应系统，其特征在于，所述阀块(19)容纳泄漏检测装置(24)。
9.根据权利要求5所述的燃料供应系统，其特征在于，所述阀块(19)容纳泄漏孔系统，所述泄漏孔系统在不进行管道连接的情况下联接到所述泄漏检测装置(24)，其中所述泄漏孔系统与所述低压孔系统和所述高压孔系统分开。
10.一种组件，包括燃料供应系统的蓄压系统(7)的蓄压单元(9)、限压阀(13)和冲洗阀(14)，其中所述蓄压单元(9)可通过高压管线(10)联接到其它蓄压单元(9)，其中所述蓄压单元(9)可通过另一个高压管线(10)联接到泵送装置(3)，并且其中所述蓄压单元(9)可通过根据喷射循环而偶尔处于高压下的高压管线(11)联接到喷射器(1)，其特征在于，对所述蓄压单元(9)分配阀块(19)，所述阀块(19)直接对所述蓄压单元(9)起作用并容纳所述限压阀(13)和所述冲洗阀(14)。
11.根据权利要求10所述的组件，其特征在于，具有根据权利要求1至9中的任一项所述的结构。
CN201410200384.1A 2013-04-12 2014-04-11 燃料供应系统 Expired - Fee Related CN104100429B (zh)

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