摘要:
A fuel supply apparatus for an internal combustion engine includes: a feed pump capable of feeding a fuel of the internal combustion engine; a high pressure fuel pump that pressurizes the fuel fed from the feed pump; and a second injector that supplies the pressurized high-pressure fuel to the internal combustion engine selectively. An ECU of the fuel supply apparatus includes: a pulsation width detection unit that detects a pulsation width in a pressure of the fuel fed from the feed pump to the high pressure fuel pump; and a feeding condition determination unit that determines that a condition variation causing fuel vapor to form in the fuel fed to the high pressure fuel pump has occurred when the pulsation width detected by the pulsation width detection unit falls rapidly to a preset threshold variation width.
摘要:
A unitized fuel supply assembly is diclosed including an in-line reciprocating cam driven pump (14) for supplying fuel to an accumulator (12) from which fuel is directed to a plurality of engine cylinders by means of a distributor (16) mounted on the unitized assembly. Dual pump control valves (20) provide fail safe electronic control over the effective pump displacement. One or more injection control valves mounted on the distributor are provided to control injection timing and quantity. The accumulator (12) contains a labyrint of interconnected chambers which are shaped and positioned to produce a minimum overall package size while providing for easy manufacture.
摘要:
A liquid injection device comprises a high pressure generating device, having a pressure chamber with a liquid induction port and a high pressure wave delivery port as well as an impulsive high pressure generating source, and an associated injector. Further, said high pressure generating device comprising means for concentrating the generated high pressure wave.
摘要:
A fuel injector comprises a nozzle defining a working chamber (38). Fuel is supplied to the working chamber (38) through an inlet, and an outlet is provided whereby fuel can escape from the working chamber (38). Electrodes (36, 40) are provided and arranged such that a voltage can be applied across the fuel within the working chamber (38). In one aspect of the invention, valve means (40, 42) controls fuel flow through the outlet.
摘要:
A liquid injection device comprises a high pressure generating device, having a pressure chamber with a liquid induction port and a high pressure wave delivery port as well as an impulsive high pressure generating source, and an associated injector. Further, said high pressure generating device comprising means for concentrating the generated high pressure wave.