2.3 Fuel supply system 燃油(氣)供給系統

Fig2.8 Fuel system of gasoline engine 汽油機燃油系統

Fig2.9 Pintaux type nozzle 軸針式噴嘴

Fig2.10 Biconical profile 雙錐形結構

Fig2.11 Types of injector 噴油器類型

Fig2.12 General arrangement of microjector 微噴油器的通用設計

Fig2.13 Bosch snubber valve 博世減振閥

Fig2.14 Direct injection 直噴裝置

Fig2.15 Three types of nozzles 三種噴嘴

Fig2.16 A hydraulic actuator unit increases the oil pressure,which causes the piston to move to the right,and the excess fuel oil is discharged for the engine to start 液壓啟動單元增加油壓使活塞右移排出額外燃油供發動機啟動用

Fig2.17 The solenoid-actuated system for resetting the stop so that the fuel rack can move further to provide excess fuel for starting 電磁鐵驅動重置燃油擋桿以便燃油齒條進一步移動額外供油用于啟動

Fig2.18 The Bosch thermostatically actuated device for terminating cold start fuelling 結束冷啟動供油的博世熱啟動裝置

Fig2.19 Block diagram of the Bosch electronic control system and its sensors 博世電控系統及傳感器框圖

Fig2.20 The combined control,governor and pump unit of the Cummins PT system 集控制、調節器和泵單元于一體的康明斯PT系統

Fig2.21 Minimec governor 微機械調節器

Fig2.22 Main components of the Bosch common rail injection system 博世共軌噴射系統的主要部件

Fig2.23 The electronic control system of unit injection system 單元噴射系統的電控系統

Fig2.24 The simple water separator of sedimenter(it generally has a glass bowl,so that accumulation of water or sediment can be easily observed)簡易分水器或沉積器(通常有一個玻璃器皿以便沉積水或沉積物能夠易于觀察)

Fig2.25 Water droplets agglomerate on the clean side of a filter element and,together with heavy particles of sediment,drop down into the sedimenter below 水滴及沉積顆粒重物聚合在過濾元件的潔凈邊,掉落在下邊的沉積室里

Fig2.26 Fuel system with DPA pump and mechanical governor 帶DPA泵和機械調節器的燃油系統

Fig2.27 DPA Pump DPA泵

Fig2.28 The regulating valve is screwed into the top of the transfer pump 調節閥擰入傳輸泵頂部

Fig2.29 Maximum fuel adjustment device 最大燃油量調節裝置

Fig2.30 Diagram of fuel distribution system for latch valve and rotor vent switch valve 閉鎖閥和轉子開關通風閥的燃油分配系統圖解

Fig2.31 In the DPS pump,the maximum fuel delivery is controlled by scroll plates DPS泵的最大燃油輸出受到滾盤的控制

Fig2.32 Hydraulic governor 液壓調節器

Fig2.33 Boost controller at rest or idling 處于停止或怠速的增壓控制器

Fig2.34 Hydraulic excess fuel unit 液壓過油單元

Fig2.35 Electronic control system for indirect injection 間接噴射的電子控制系統

Fig2.36 Hydraulic control system 液壓控制系統

Fig2.37 Diagram illustrating the DPC distributor type pump system incorporating a boost controller(To the left of and below the transfer pressure regulating valve is a solenoid-actuated low load delivery valve) DPC分電類泵系統(采用了增壓控制器傳輸壓力調節閥的左端和下端是電磁鐵啟動的輕載供油閥)
The key letters under different pressures in the system are as follows 系統不同壓力標識字母如下:
A—Atmospheric 大氣壓;BL—Back leakage 背部泄漏壓力;C—Cam box 凸輪箱壓力;F—Fuel feed 燃油供給壓力;
I—Injection 噴射壓力;M+I—Alternately metering and injection 交替的計量和噴射壓力;
R—Return to tank 返回油箱壓力;T—Transfer pressure 傳輸壓力

Fig2.38 Elevation design of the plunger and control sleeve of the Bosch VE type pump(by the governor,over the fuelling is effected by axial movement of the control sleeve to vary the spill point)調節器對博世分配型泵的柱塞和控制套的提升設計(控制套軸向移動改變溢油點從而影響供油量)

Fig2.39 All-speed version of the Bosch governor for the VE series pumps 博世全速版分配式系列泵調節器

Fig2.40 Arrangement of the ECU and PCU in relation to the pump 電控單元和泵控單元與泵的對應布局

Fig2.41 Arrangement of the Bosch KSB hydraulic cold start injection advance device 博世KSB液壓冷啟動噴射行進裝置

Fig2.42 Elementary carburettor with only a single jet,together with the bottom feed needle valve and its actuation mechanism 單噴嘴化油器及其底部進油針閥和啟動機構
1—The throat of the venturi,or choke(air orifice) 文丘里管喉部,即阻風門(進氣孔);2—Fuel jet(fuel orifice) 燃油
噴嘴(燃油小孔);3—Float chamber 浮子室;4—Needle valve 針閥;5—Levers translating upward motion of the float to
downward motion of the needle valve,and vice versa 杠桿將浮子的向上運動轉換為針閥的向下運動,反之亦然

Fig2.43 A diagrammatic representation of a main and compensating jet system 主噴油和補償噴油系統圖解

Fig2.44 Direct injection 直噴裝置

Fig2.45 Principle diagram of the air bleed system 空氣混合系統原理圖解

Fig2.46 Claudel-Hobson air bleed 克勞德-霍森混氣裝置

Fig2.47 Solex‘assembly 20’索萊克斯20組件混氣裝置

Fig2.48 Stromberg air bleed 斯托貝格混氣裝置

Fig2.49 Zenith air bleed “頂峰”混氣裝置

Fig2.50 Schematic diagram of the DS electronic control system DS電控系統圖解

Fig2.51 Acceleration pump system with,in the scrap view,details of the head of the plunger and its seal 加速泵系統及其拆解圖和柱塞、密封放大圖

Fig2.52 Cold start enrichment device 冷啟動補油裝置

Fig2.53 Injector for the Bosch K-Jetronic system 博世K系燃油電噴系統

Fig2.54 In the Lucas-D-Series injector,alternative nozzles,for delivering single,twin or three sprays,can be fitted in the nozzle holder 可以安裝在噴嘴座里的具有多種噴嘴(單頭、雙頭和三頭)可選的盧卡斯D系列噴油器

Fig2.55 Bosch KE-Jetronic system 博世KE系電噴系統


Fig2.57 Bosch L-Jetronic system 博世L系電噴系統
1—Electronic control unit 電控單元;2—Injection valve 噴射閥;3—Air-flow sensor 空氣流傳感器;
4—Temperature sensor 溫度傳感器;5—Thermo-time switch 溫度時間開關;6—Start valve 啟動閥;
7—Electric pump 電動泵;8—Fuel filter 燃油過濾器;9—Pressure regulator valve 壓力調節閥;
10—Auxiliary-air device 空氣附屬裝置;11—Throttle-valve switch 節流閥開關;12—Relay set 延時裝置

Fig2.58 Fuel system of the Lucas DPS injection pump 盧卡斯DPS噴油泵燃油系統
1—Pressurising valve 壓力閥;2—Fuel tank 燃油箱;3—Throttle shaft 節流軸;4—Sedimenter or water stop 沉積器/積水器;
5—Metering valve 計量閥;6—Shut-off solenoid 截止電磁鐵;7—Vent orifice 通風小孔;8—Filter 過濾器;
9—Feed pump(when fitted)or hand primer(when fitted) 輸油泵或手動啟動注油器;10—Regulating valve 調節閥;
11—Transfer pump 傳輸泵;12—Hydraulic head and rotor 液壓頭和轉子;13—Latch valve 閉鎖閥;
14—Manual idle advance lever 手動怠速調節桿;15—Automatic advance and retard unit 自動行進和阻滯單元;
16—Head locating fitting 頭部固定配合;17—Injector 噴油器;18—Rotor vent switch valve 轉子通風開關閥;
19—Two-speed mechanical governor and control linkage 兩速度機械調節器和控制連接;20—Cam box 凸輪箱;21—Idle shaft 惰軸


Fig2.60 Cross-section of the fuel-pressure regulator 燃油壓力調節器剖視圖

Fig2.61 A Bosch diagrammatic representation of the pressure regulator for their Motronic injection and ignition control system 博世壓力調節器用于協同噴射和點火控制圖解

Fig2.62 Bosch pulsation damper for the Motronic system 博世發動機協同管理的脈沖阻尼器

Fig2.63 Bosch fuel pump for delivery at pressures below 1 bar 博世低壓(低于1巴)燃油供油泵

Fig2.64 AC fuel pump 交流燃油泵

Fig2.65 Plunger-type fuel injection pump diesel system 柱塞式噴油泵柴油機燃油系統


Fig2.66 Types of injection 噴射類型

Fig2.67 Single point CFI(central fuel injection)unit 單點中心噴油單元

Fig2.68 Single-point injection details 單點噴射詳解



Fig2.71 The GM rochester multec single-point injection system GM羅切斯特復合技術單點燃油噴射系統
1—Plug-in calibration software EPROM 插入式校準軟件只讀存儲器;2—Fuel pressure regulator 燃油壓力調節器;
3—Injector 燃油噴射器;4—Idle air control valve 怠速空氣控制閥;5—Coolant temperature sensor 冷卻劑溫度傳感器;
6—Throttle position sensor 節流閥位置傳感器

Fig2.72 GM Rochester multec multi-point injection system GM羅切斯特復合技術多點噴射系統

Fig2.73 The GM Rochester multec single-point injector(it is similar to that of the bosch mono-jetronic)GM羅切斯特復合技術單點燃油噴射器(與博世單點電噴類似)