九:
Electronic control system consists of various engine sensors, electronic control unit (ECU), fuel injector assemblies, and related wiring. The ECU determines precisely how much fuel needs to be delivered by the injector by monitoring the engine sensors.
十:
The engine cooling system actually is a temperature regulation system to protect engine from self-destruction. About one-third of the heat produced in the engine is converted into power, another third goes out through the exhaust pipe unused, and the remaining third must be carried away by the cooling system(some is utilized for heating the passenger compartment).
十一:
In detail, the cooling system is made up of the passages (water jacket) inside the engine block and heads, a water pump to circulate the coolant, a thermostat to control the temperature of the coolant, a radiator to cool the coolant, a radiator cap to control the pressure in the system, and some plumbing consisting of interconnecting hoses to transfer the coolant from the engine to radiator and also to the car‘s heater system where hot coolant is used to warm up the vehicle’s interior on a cold day.
十二:
Some vehicles, particularly high performance or diesel engines, are equipped with engine oil cooler. The purpose is to reduce the temperature of the oil, preventing oxidation and increasing the oil’s lubricating and protecting properties.
十三:
Petrol engines and engines operating on gas require an ignition system. This needed to provide the sparks that fire the charges in the combustion chambers. For this reason, petrol engines are sometimes referred to as spark-ignition engines. This distinguishes them from diesel engines that do not need a spark because they use compression ignition.
十四:
The automotive ignition system has two basic functions ; it must control the spark and timing of the spark plug firing to match varying engine requirements , and it must increase battery voltage to a point where it will overcome the resistance offered by the spark plug gap and fire the plug .
十五:
Ignition timing is defined as the time in degrees of crankshaft rotation that the spark occurs idle.
This is called the base or initial timing.
The initial timing is adjusted several degrees BTDC, engine speed and load increase, the timing must increase.
The initial timing is set by means of adjusting the distributor.
十六:
The starting switch activates the system.
In the modern automobiles this switch is part of the keyed ignition.
The ignition switch usually has four positions: accessories, off, on (run), start.
All the ignition switch positions expect start have dents . That is , the switch remains in those positions until moved by the operator.
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答案:2 悬赏:0
解决时间 2021-03-06 02:48
- 提问者网友:清茶柒夏
- 2021-03-05 23:47
最佳答案
- 二级知识专家网友:最后战士
- 2021-03-06 01:11
九:电子控制系统,包括发动机的各种传感器,电子控制单元(ECU),喷油器组件,和相关的布线。燃料需要多少由喷油器通过监控发动机传感器提供的ECU精确地确定。十:发动机冷却系统实际上是一个温度调节系统,以保护从自我毁灭的发动机。转化为电力的关于在发动机产生的热量的三分之一,另外三分之一熄灭通过排气管未使用,剩下的三分之一,必须由冷却系统(有些是利用加热乘客舱)。十一:详细,冷却系统是由通道内的发动机缸体和缸盖,一台水泵,循环冷却液,恒温器控制温度,冷却液冷却冷却液散热器,散热器(水套)上限控制系统中的压力,一些管道组成的互连软管传输冷却液从发动机散热器和汽车的加热系统,热的冷却液是用来热身车辆的内部,在一个寒冷的一天。十二:一些车辆,特别是高性能柴油发动机,配备机油冷却器。目的是为了降低油温,防止氧化,增加油的润滑和保护性能。十三:对天然气经营的汽油发动机和发动机点火系统。这需要提供的火花,火在燃烧室的收费。出于这个原因,有时被称为汽油发动机点火发动机。这区别于他们不需要火花,因为他们使用压缩点火柴油发动机。十四:汽车点火系统有两个基本功能,它必须控制的火花,火花点火插头匹配不同的发动机要求的时间,就必须增加电池电压到一个点,它会克服阻力火花塞间隙和火灾提供插头。十五:点火时间被定义为度曲轴旋转火花发生空闲时间。这就是所谓的基地或初始计时。初始时序调整几度BTDC,发动机转速和负荷的增加,时间必须增加。初始时序设置,调整经销商的手段。十六:启动开关激活系统。此开关在现代汽车是键控点火的一部分。点火开关通常有四个位置:关闭,配件,(运行),启动。所有的点火开关的位置,开始有凹痕。也就是说,这些职位仍然有效,直到由运营商移动交换机。
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- 1楼网友:哭不代表软弱
- 2021-03-06 02:02
开心一点,做些有意义的事。
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