0
What does it mean by suction control valve in common rail diesel engine's high pressure fuel pump?
Wiki User
∙ 11y ago
it controls fuel delivery to high pressure part of pump in common rail engines
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
What is remote control car engines made of?
The most common types of remote controlled car engines are electric DC motors.
What is engine back pressure?
Engine back pressure is a common ailment in faulty engines. It is when the exhaust sends the power to the very back of the vehicle, instead of through its engine.
Why is the suction line of a pump larger than the discharge line?
It is common practice to specify the pump suction line one size larger than the pump discharge line in order to increase the Net Positive Suction Head available (NPSHA) to the pump. A smaller suction line the same pipe size as the discharge line would result in more pressure drop in the suction line and reduce the amount of head available to the suction side of the pump. This in turn would result in an operating point closer to cavitation of the pump.
What is Common Rail Engine?
This a type of injection system that all the injectors are run off one high pressure source. Most current diesels are Common rail direct injection engines.
Why does your cruise control not work on 2005 mercury?
Check the pressure sensor on the master cylinder - very common.
How come the oil pressure drops in the red in your 2.8 fiero when idiling?
You may need to change your oil, it may be normal for this vehicle to be in the red at an idle. The engine is not under any pressure. also a very common fault for gm v6 engines loss of oil pressure at idle is often caused by worn out main bearings. i have salvaged many engines by changing them.
What do cars have in common?
engines
What makes a 1999 Saturn sl2 tranny jump out of gear?
standard or automatic? If automatic need to do line pressure test but common cause is the pressure control solenoid
Why injection pressure is high for diesel engines in common rail direct injection?
In common rail direct injection (DICOR) engine used in multicylender & main function is to provided the fuel in equal amount of in all cylender & the pressure of the fuel is high for atomised (Vaporized) the fuel & these atomised the fuel is reduces the knoking problem.Regarding this high pressure is use.
How does CRDI engines working?
CRDI is Common Rail Direct Injection Modern CR systems is governed by an engine control unit (ECU) which opens injector electronically rather than mechanically. CRDi is a modern variant of direct injection system for diesel engines. It features a high pressure (1000+ bar) fuel rails feeding individual solenoid valves as opposed to low pressure fuel pump feeding unit injectors or high pressure fuel line to mechanical valves controlled by cams on the camshaft. Common rail engines require no heating up time, and produce lower engine noise and lower emission than older systems. In common rail system the distributor injection pump is eliminated, instead an extremely high pressure pump stores a reservor of fuel at high pressure upto 2000bar in a common rail basically a tube which in turn branches off to computer controlled injector valves, each of which contains a precision machined nozzle and a plunger driven by a solenoid. driven by a computer, the valves, rather than pump timing, control the presice moment when the fuel is injected into the cylinder to be increased. As a result the fuel injected into the cylinder atomises easily and burns cleanly, reducing exhaust emissions and increasing efficiency.
What is the possible cause of pump cavitations?
Two of the most common causes of pump cavitation are air in the pump or the fluid being pumped is too hot. Water at 180 degrees will cause the pump to cavitate (steam bubbles form in the eye of the pump on the suction side of the impeller) because of the drop in pressure created on the suction of the pump. This can be corrected by either pumping cooler water, or by raising the net suction head of the pump. Air in the pump can be corrected by venting the pump.
How does common rail diesel engines work?
A common rail diesel engine is similar to a conventional diesel engine, only difference being the fuel injection system(FIS).The common rail direct injection system uses electronic circuits to control the amount of fuel that is injected in to the cylinder. Also the time of injection(TI), Start of injection (SOI), Injection quantity (Q), and the injection pressure (P) are all accurately controlled with ecu in this technology. A high pressure pump(HPP), driven from Engine shaft, is used to pump in high pressure fuel from the tank and deliver it to the common rail. A common rail is nothing but a hollow shaft to which the fuel is delivered and maintained at a very high pressure of about 2000 bar.during the firing sequence of that particular cylinder, the high pressure electronically operated injector will be opened and fuel with a pressure of about 2000 bar is injected in to the cylinder. This high pressure fuel cloud will be automised completely and leads to complete combustion of the fuel, thus avoiding emission.
