Fuel injection device for internal combustion engines

DRIVE November 12, 2003
Source
The device has a high pressure pump, a transport pump feeding the suction side of the high pressure pump, injectors, return lines from the injectors and high pressure pump and a pressure regulating valve passing fuel from the storage tank to the fuel tank. The return lines open into a common return line opening into the fuel tank and containing a choke point. The pressure regulating valve outlet opens via an outlet line into the fuel tank. The device has a high pressure pump (14) feeding a storage tank (38), a transport pump (10) feeding the suction side of the high pressure pump, injectors connected to the storage tank, return lines (80,82) for fuel that has not been injected and from the high pressure pump and a pressure regulating valve (76) passing fuel from the storage tank to the fuel tank (12). The return lines from the injectors and high pressure pump open into a common return line (84) opening into the fuel tank and containing a choke point (86). The pressure regulating valve outlet opens at least indirectly into the fuel tank via an outlet line.

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