CN206972632U - 用于发动机的流体输送系统 - Google Patents

用于发动机的流体输送系统 Download PDF

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CN206972632U
CN206972632U CN201720888944.6U CN201720888944U CN206972632U CN 206972632 U CN206972632 U CN 206972632U CN 201720888944 U CN201720888944 U CN 201720888944U CN 206972632 U CN206972632 U CN 206972632U
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fluid
pump
valve
motor
control module
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D·W·西格
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Caterpillar Inc
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B60H1/3222—Cooling devices using compression characterised by the compressor driving arrangements, e.g. clutches, transmissions or multiple drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
    • B60H1/00378—Air-conditioning arrangements specially adapted for particular vehicles for tractor or load vehicle cabins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
    • B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
    • B60H1/00885—Controlling the flow of heating or cooling liquid, e.g. valves or pumps
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/2058—Electric or electro-mechanical or mechanical control devices of vehicle sub-units
    • E02F9/2095—Control of electric, electro-mechanical or mechanical equipment not otherwise provided for, e.g. ventilators, electro-driven fans
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • E02F9/2232—Control of flow rate; Load sensing arrangements using one or more variable displacement pumps
    • E02F9/2235—Control of flow rate; Load sensing arrangements using one or more variable displacement pumps including an electronic controller
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2278—Hydraulic circuits
    • E02F9/2296—Systems with a variable displacement pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
    • F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
    • F03C1/0678—Control
    • F03C1/0686—Control by changing the inclination of the swash plate
    • 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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/26—Control
    • F04B1/28—Control of machines or pumps with stationary cylinders
    • F04B1/29—Control of machines or pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
    • F04B1/295—Control of machines or pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block by changing the inclination of the swash plate
    • 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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/26—Control
    • F04B1/30—Control of machines or pumps with rotary cylinder blocks
    • F04B1/32—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block
    • F04B1/324—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block by changing the inclination of the swash plate
    • 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
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/05—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by internal-combustion engines
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/002—Hydraulic systems to change the pump delivery
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/20—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the driving speed
    • 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
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/308—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom working outwardly
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/16—Cabins, platforms, or the like, for drivers
    • E02F9/163—Structures to protect drivers, e.g. cabins, doors for cabins; Falling object protection structure [FOPS]; Roll over protection structure [ROPS]
    • 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
    • F04B2205/00—Fluid parameters
    • F04B2205/09—Flow through the pump

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fluid Mechanics (AREA)
  • Operation Control Of Excavators (AREA)

Abstract

本实用新型提供了一种用于发动机的流体输送系统。流体输送系统包括泵、阀模块、马达以及排量控制模块。泵与发动机操作地联接并适于提供流体的流。阀模块设置成与泵流体连通以控制流体的流。马达设置成与阀模块流体连通以接收流体的流并转换成机械动力。排量控制模块设置成与泵和阀模块流体连通并位于泵下游和阀模块上游。排量控制模块控制泵的排量用于至少部分地基于发动机速度且不基于压缩机负载而维持来自泵的流体的恒定流速。本实用新型的排量控制模块可以通过集成化调节阀而容易地配置用于维持从泵流至马达的流体的恒定流速。因此，无需在流体输送系统中设置延迟和低效的附加复合负载感测电路。

Description

用于发动机的流体输送系统
技术领域
本实用新型涉及一种来自发动机的流体输送系统。更具体地，本实用新型涉及用于操作与发动机相关联附属设备的流体输送系统。
背景技术
重型机器用于采矿、建筑和/或其他应用中的各种任务。这些机器包括但不限于液压采矿铲、液压挖掘机或其他类似的机器。例如，液压采矿铲包括其中操作员坐下来以便操作机器的驾驶室。加热通风空调（HVAC）系统用于机器以便为操作员提供舒适的环境。
当前，液压采矿铲上的HVAC系统是使用负载感测系统液压地驱动的。负载感测系统利用与泵联接的液压管路用于控制流速以便驱动马达。马达进一步驱动压缩机单元以便操作HVAC系统。然而，这些液压管路增加的长度对于维持液压回路中的均匀液压流速中存在延迟和低效。进一步的，对于大型机器，液压管路甚至更长，这导致进一步的延迟并妨碍了操作效率。此外，当前，采用改变的负载和马达速度维持HVAC系统的稳定性具有挑战性。
然而，已知解决方法在维持恒定液压流速中可能不有效、可行以及有成本效益。因此，需要一种用于维持恒定液压流速而不考虑改变的负载的马达速度的改进的系统和方法。
实用新型内容
在本实用新型的一个方面中，公开了一种用于发动机的流体输送系统。流体输送系统包括泵、阀模块、马达以及排量控制模块。泵与发动机操作地联接并适于提供流体的流。阀模块设置成与泵流体连通。阀模块适于控制流体的流。马达设置成与阀模块流体连通并适于接收流体的流以及转换成机械动力。排量控制模块设置成与泵和阀模块流体连通。排量控制模块位于泵下游和阀模块上游。排量控制模块适于控制泵的排量用于至少部分地基于发动机速度且不基于压缩机负载而维持来自泵的流体的恒定流速。
所述排量控制模块包括：控制所述泵的调节阀；以及设置在所述调节阀下游和所述阀模块上游的比例阀。
所述阀模块包括：设置在所述马达上游的换向阀；设置在所述马达上游和所述排量控制模块下游的电磁阀；以及溢流阀，其设置在所述换向阀上游和所述排量控制模块下游，并相对于所述电磁阀并联。
所述马达联接到与加热通风空调单元相关联的所述压缩机。
本实用新型利用排量控制模块来以实时方式基于发动机转速改变泵的排量以维持马达的恒定输出转速。排量控制模块可以通过集成化调节阀而容易地配置用于维持从泵流至马达的流体的恒定流速。因此，无需在流体输送系统中设置延迟和低效的附加复合负载感测电路，结构简化，降低成本。并可对HVAC系统提供更高的可靠性和效率，且稳定性的提高，增加了压缩机单元的使用寿命和性能。
通过以下说明和附图，本实用新型的其他特征和方面将显而易见。
附图说明
图1是根据本实用新型的原理的示例性机器的透视图；
图2是根据本实用新型的原理与图1的机器相关的流体输送系统的框图；以及
图3是根据本实用新型的原理的图2的流体输送系统的示意图。
具体实施方式
参照图1，示出了示例性机器10。在一个实施例中，机器10为来自工地（仅作为示例）的液压采矿铲（HMS），其用于挖掘和开采煤、岩石和/或土壤。机器10可包括可平移可旋转主体12，该主体12可包含发动机14以及液压和电气系统（未示出）。发动机14配置为向机器10提供动力用于执行各种操作。如所示，除了其他的部件以外，机器10还可包括作业工具诸如例如铲斗16、液压缸18。
机器10进一步包括位于主体12顶部的操作员驾驶室20。操作员驾驶室20可包括其中可能期望的是经由加热通风空调（HVAC）单元的空气调节的类型的操作员控制站（未示出）。进一步地，机器10包括用于便于机器10的运动的底架系统22。机器10可进一步包括图1中为了简化而未标出的各种其他部件。然而，机器10可以是任何其他履带式机器，诸如但不限于履带式装载机、坦克、铺管机、铺路机、地下开采设备、电绳铲和挖掘机，而不偏离本实用新型的范围。
参照图2，示出了用于发动机14的流体输送系统24。流体输送系统24可以与电子控制模块（ECM）（未示出）联接，该电子控制模块配置为控制流体输送系统24的各个方面，包括与其相关联的各个液压部件以及本文待进一步描述的相关电控功能。流体输送系统24维持流至马达32的流体（诸如液压流体）的恒定流速用于驱动压缩机单元34。
流体输送系统24包括各种部件，诸如泵26、排量控制模块28和彼此流体连通用于控制流至马达32的流体的恒定流速的阀模块30。泵26适于通过改变以下图3所述的其排量来提供流至马达32的流体的恒定流。
参照图3，示出了流体输送系统24的示意图。流体输送系统24维持流至马达32的流体（诸如液压流体）的恒定流速用于驱动压缩机单元34。泵26与发动机14操作地联接用于接收动力并适于提供流至马达32的流体的流。在一个实施例中，泵26是正排量泵并适于使用排量控制模块28来改变其排量用于维持泵26的下游侧的流体的恒定流速。ECM可适于控制排量控制模块28用于维持流体的恒定流速以便控制马达32的速度。排量控制模块28适于调节活塞组件44以根据发动机速度和发动机负载改变泵26的排量以维持流至马达32的恒定流速。恒定流速便于维持马达32的恒定速度，该马达32用于驱动压缩机单元34。
泵26适于从储集器36（见图3）抽出流体。储集器36保持足够的流体以满足泵26和流体输送系统24的其他液压部件的需求。液压流体是经由入口38从储集器36接收并进入泵26且经由出口40供给到马达32的，如下所述。
泵26通过机器10的发动机14直接操作。本领域技术人员将认识到，泵26可接收来自其他源的动力以及通过本文未描述的任何其他机制接收动力，而不脱离本实用新型的意图和范围。在机器10的操作期间，由于一些其他辅助操作，随着来自发动机10的动力的改变，发动机速度和发动机负载可以改变。因此，由泵26接收的输入功率可趋于改变。
因此，为了维持流体输送系统24中的流体的恒定流速，排量控制模块28适于控制泵26的排量用于至少部分地基于发动机速度和发动机负载维持来自泵26的流体的恒定流速。例如，如果从发动机14到泵26的输入功率存在任何轻微变化，则泵26仍使用排量控制模块28经由出口40维持其下游侧的流体的恒定流速，如后续段落所述。
排量控制模块28与泵26和阀模块30流体连通。排量控制模块28设置在泵26下游和阀模块30上游用于根据发动机速度和发动机负载的变化调节泵26的排量。排量控制模块28包括调节阀42和设置在泵26下游的活塞组件44。
排量控制模块28进一步包括设置在调节阀42下游和阀模块30上游的比例阀46。比例阀46配置为控制供给到调节阀42的最大系统压力以控制进入活塞组件44的流体的流速。调节阀42以如果不需要活塞组件44的排量致动，则流体经由路径50返回到储集器36的这种方式操作。另外，如果需要活塞组件44的排量致动，则流体经由路径48被输送到调节阀42。
排量控制模块28进一步包括设置在调节阀42和活塞组件44下游的止回阀52。止回阀52与调节阀42和活塞组件44流体连通以将排量控制模块28中的液压压力维持在安全限度内。在后续段落描述排量控制模块28的工作。
在工作期间，如果来自发动机14的动力存在变化，则调节阀42适于相应地致动活塞组件44以改变泵26的排量以便维持泵26下游的流体的恒定流速。本领域技术人员将认识到，泵26的排量可使用任何其他技术改变，而不脱离本实用新型的意图和范围。
马达32与阀模块30流体连通且适于接收来自泵26的流体以转换成机械动力。马达32定位在阀模块30和泵26下游。马达32适于接收流体的恒定流速用于转换成运行压缩机单元34的机械动力。压缩机单元34与HVAC单元相关联。在一个实施例中，马达32是定量马达，由ECM导向的泵26的任何排量调节可以致使泵26向马达32提供流体的恒定流速以驱动压缩机单元34。
阀模块30与泵26流体连通且位于泵26下游以控制流体的流。阀模块30包括换向阀54、电磁阀56和溢流阀58。换向阀54设置在马达32上游。电磁阀56设置在换向阀54上游和排量控制模块28下游。溢流阀58设置在换向阀54上游和排量控制模块28下游，并相对于电磁阀56并联。
溢流阀58与换向阀54和电磁阀56流体连通以将流体输送系统24中的液压压力维持在安全限度内。换向阀54和电磁阀56流体连通并可操作地彼此联接以控制流至马达32的流体的流速，如后续段落所述。本领域技术人员将认识到，阀模块30可使用其他技术或部件控制本文未描述的流体的流速。
在工作期间，电磁阀56驱动换向阀54用于打开/关闭马达32。当电磁阀56未通电时，关闭换向阀54。在这种状态下，少量流体（即液压油）经由路径60穿过换向阀54并通过马达32的壳体排出，然后经由路径62（虚线部分）返回到储集器36。该操作使马达32保持在工作油温下使得当打开马达32时对马达32没有热冲击。
当电磁阀56通电时，换向阀54以流体通过路径66传递到入口64以打开马达32的这种方式操作。因此，阀模块30能够维持流体的流以操作马达32，且流体通过马达32的出口68经由路径70返回到储集器36。因此，马达32向压缩机单元34提供恒定速度，而与发动机速度或压缩机负载的任何变化无关。压缩机单元34进一步与HVAC单元相关联用于控制机器10的操作员驾驶室20内侧的温度。
工业实用性
本实用新型利用排量控制模块28来以实时方式基于发动机速度改变泵26的排量以维持马达32的恒定输出速度。排量控制模块28可以通过集成化调节阀42而容易地配置用于维持从泵26流至马达32的流体的恒定流速。因此，无需在流体输送系统24中设置延迟和低效的附加复合负载感测电路。
本实用新型在其他大型作业机器，尤其是液压动力作业机器诸如采矿铲、采矿卡车、挖掘机等中可以轻易地被改型。本实用新型可对HVAC系统提供更高的可靠性和效率，其导致用于维持和/或更换HVAC的各零件的更少的停工期。进一步，本实用新型提供了用于操作操作员驾驶室20的HVAC系统的更快、可靠、以及稳定控制机制，且增加的稳定性增加压缩机单元34的寿命和性能。
虽然本实用新型的多个方面已参照上述实施例进行了特别显示和描述，但本领域技术人员会知道：在不背离所公开内容的精神和范围的情况下，通过修改所公开机器、系统和方法可以设想各种附加的实施例。如基于权利要求和其任何等同物所确定，这种实施例应当理解为落入本实用新型的保护范围内。

Claims (4)

1.一种用于发动机的流体输送系统，其特征在于，所述流体输送系统
包括：
操作地联接到所述发动机的泵，所述泵适于提供流体的流；
设置成与所述泵流体连通的阀模块，所述阀模块适于控制所述流体的所述流；
设置成与所述阀模块流体连通的马达，所述马达适于接收所述流体的所述流并转换成机械动力；以及
设置成与所述泵和所述阀模块流体连通的排量控制模块，所述排量控制模块位于所述泵下游和所述阀模块上游，所述排量控制模块适于控制所述泵的排量用于至少部分地基于发动机速度且不基于压缩机负载而维持来自所述泵的所述流体的恒定流速。
2.根据权利要求1所述的用于发动机的流体输送系统，其特征在于，所述排量控制模块包括：
控制所述泵的调节阀；以及
设置在所述调节阀下游和所述阀模块上游的比例阀。
3.根据权利要求1所述的用于发动机的流体输送系统，其特征在于，所述阀模块包括：
设置在所述马达上游的换向阀；
设置在所述马达上游和所述排量控制模块下游的电磁阀；以及
溢流阀，其设置在所述换向阀上游和所述排量控制模块下游，并与所述电磁阀并联。
4.根据权利要求1所述的用于发动机的流体输送系统，其特征在于，所述马达联接到与加热通风空调单元相关联的所述压缩机。
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