澳门mgm美高梅官方网站

中文  |  English  |   | Español
Business
HP Oil Pump Tappet
Roller Tappet
Detailed introduction:
The role of direct-injection HP oil pump tappet is to transform the rotation of HP oil pump cam into reciprocal motion of drive pump. HP oil pump tappet delivers oil into oil pump through oil tank. Under the condition of high speed, compressed diesel goes through high-pressure pipe to the nozzle and is sprayed into the engine. High-pressure pump is practical for GDI engine. Fuel is pressurized by fuel pump and enters high-pressure fuel pump. High-pressure fuel pump is driven by camshaft to deliver a pressure of 120-350bar and high-pressure nozzle sprays fuel into cylinder. High-pressure nozzle is precisely controlled by ECU (Engine Control Unit). Fuel is injected directly into combustion chamber through high pressure and it is completely atomized to realize full combustion. The principle of high-pressure pump is to conduct precise direct injection into combustion chamber by using computer control. Comparing with conventional fuel injection system, the biggest advantage of GDI system is its better thermodynamic effects. Because on the basis of engine operation (driving conditions), ECU of GDI system can constantly & precisely control fuel-injection amount and change fuel-injection mode to maintain the optimum fuel supply. Thus fuel can be mixed with air for almost complete combustion to increase the work efficiency.

 
PPM Solution

Our company has been pursuing higher power,lower consumption, less emission, and safer driving as a sustained goal for technology development. We focus on core products application on global vehicle platforms and have been highly regarded by customers and society.


  Business
Valve Train
Fuel System
Emission System
Safety System
Steering System

About PPM
Company Profile
Corporate Culture
Company History
Our Structure
Honor Certificates
Quality Certificates
Company Snapshot
CopyRight © 2015 PPM(Shen Zhen) Inc. All Right Reserved.