Electric fuel pumps generate positive electrical pressure in fuel lines, which drives fuel to the internal combustion engine. An ignition switch activates a relay that manages the higher current necessary to increase fuel pressure.
Two types of fuel pumps are used in automobiles; mechanical and electric. All fuel injected cars today use electric fuel pumps, while most carbureted cars use mechanical fuel pumps. Mechanical fuel pumps are diaphragm pumps, mounted on the engine and operated by an eccentric cam usually on the camshaft. A rocker arm attached to the eccentric moves up and down flexing the diaphragm and pumping the fuel to the engine. Because electric pumps do not depend on an eccentric for operation, they can be located anywhere on the vehicle. In fact they work best when located near the fuel tank.
Product Specification / Models
Length of the body skin: 95 mm
Wide open flow>=100L/H
Shutt-off Pressure:7.5-9.0 BAR
Current of Shutt-off Pressure<=10.5A
BOSCH:0580 314 071,0580 453 021;
Application / Models
Many cars today, locate the fuel pump inside the fuel tank. While mechanical pumps operate on pressures of 4-6 psi (pounds per square inch), electric pumps can operate on pressures of 30-40 psi. Current is supplied to the pump immediately when the key is turned. This allows for constant pressure on the system for immediate starting. Electric fuel pumps can be either low pressure or high pressure. These pumps look identical, so be careful when replacing a fuel pump that the proper one is used. Fuel pumps are rated by pressure and volume. When checking fuel pump operation, both specifications must be checked and met.
Wenzhou Mezoe Imp&Exp Co., Ltd. established in 2013, which is formerly named sales department of Ruian Weifeng Auto Spare Parts Co., Ltd. We had specialized in auto electric fuel pump for nearly ten years. During the past ten years, We put the quality at priority and established a strict quality guarantee system. For the return, we have passed the ISO 9001&TS16949 successfully. Our clients gave us a high evaluation.
In the past ten years, we also built a very wide connections. It is why we are confident that we can supply whatever auto parts you need with a competitive price.