摘要:
A multipoint fuel injection system comprises an injection system segment including a circumferentially extending outer support defining a fuel manifold with a plurality of manifold passages extending circumferentially therethrough. A first connector is included at a first circumferential end of the outer support and a second connector is included at a second circumferential end of the outer support opposite the first circumferential end. The first and second connectors are each configured to connect each manifold passage with a manifold passages of a respective outer support of a circumferentially adjacent injection system segment. The system includes a circumferentially extending inner support and a plurality of circumferentially spaced apart feed arms extending radially between the inner support and the outer support. A plurality of outlet openings extend in an axial direction from each feed arm for feeding respective injection nozzles.
摘要:
A multipoint fuel injection system comprises an injection system segment including a circumferentially extending outer support defining a fuel manifold with a plurality of manifold passages extending circumferentially therethrough. A first connector is included at a first circumferential end of the outer support and a second connector is included at a second circumferential end of the outer support opposite the first circumferential end. The first and second connectors are each configured to connect each manifold passage with a manifold passages of a respective outer support of a circumferentially adjacent injection system segment. The system includes a circumferentially extending inner support and a plurality of circumferentially spaced apart feed arms extending radially between the inner support and the outer support. A plurality of outlet openings extend in an axial direction from each feed arm for feeding respective injection nozzles.
摘要:
A fuel rail assembly is disclosed. The fuel rail assembly includes an elongated tubular fuel rail and a plurality of fuel delivery lines for hydraulically coupling the fuel rail to fuel injectors. Each fuel delivery line has an injector cup, a pipe being arranged between the fuel rail and the injector cup, and a fixation bracket. A rigid connection is established between the fixation bracket and a portion of the pipe, the portion being spaced apart from each of the fuel rail and from the injector cup.The injector cup, the pipe, and the fixation bracket are individual parts. The fixation bracket is spaced apart from the injector cup and from the fuel rail.
摘要:
In a GDI fuel rail mounting system comprising a fuel injection rail, having at least one fuel injector receiving cup with a generally cylindrical shape directly attached to the fuel rail generally perpendicular to and offset from the center of the fuel rail. The fuel rail further comprising at least one generally cylindrical attachment means proximal the fuel injector receiving cup, also attached to the fuel rail offset from the center thereof, the attachment means and the fuel injector receiving cup being disposed generally parallel to each other. A securing strap is attached to the outer curvature of at least one of the injector receiving cup and the attachment means, at least partially wrapping around the outer periphery of the attachment means, thereby inhibiting torsional, lineal, and lateral movement of the injector cup relative to the attachment means and the fuel rail.
摘要:
A fuel-pumping system for a fuel includes at least one reservoir providing a first volume for the fuel and a second volume fur a compression fluid, a separator membrane between the first volume and the second volume, an inlet port of the at least one reservoir for feeding the fuel to the first volume, an outlet port of the at least one reservoir for discharging the fuel at a high pressure from the first volume, a fluid port of the at least one reservoir for supplying or removing the compression fluid to or from the second volume. An operating method and a fuel-injection system are also disclosed.
摘要:
The present disclosure is directed to a fuel circuit of a fuel injector that includes a first channel, a second channel, and a valve. The first channel is configured to receive a first fuel and define a flow path for the first fuel. The second channel is configured to receive a second fuel and define a flow path for the second fuel. The valve is in fluid communication with the first channel and the second channel. The valve is adapted to direct the second fuel to the first channel when a pressure in the first channel reaches a predetermined level.
摘要:
A fuel-pumping system for a fuel includes at least one reservoir providing a first volume for the fuel and a second volume for a compression fluid, a separator membrane between the first volume and the second volume, an inlet port of the at least one reservoir for feeding the fuel to the first volume, an outlet port of the at least one reservoir for discharging the fuel at a high pressure from the first volume, a fluid port of the at least one reservoir for supplying or removing the compression fluid to or from the second volume. An operating method and a fuel-injection system are also disclosed.
摘要:
A fluid metering device, for instance for a fuel supply system of a combustion engine having combustion chambers, which fluid metering device comprises at least one supply line connection (1) and at least one discharge line connection (2), the fluid metering device being provided with two sets of outlet ports (3, 4) which put the or each discharge line connection (2) into fluid communication with a fluid chamber (5), which fluid chamber (5) is put into fluid communication, via at least one inlet port (6), with the at least one supply line connection (1), a first and a second regulating plunger (7 and 8 respectively) controlling the fluid flow rate through, respectively, the first and the second set of outlet ports (3 and 4 respectively) by covering at least partly the through-flow surface of, respectively, the first and the second set of outlet ports (3 and 4 respectively), each regulating plunger (7, 8) comprising energizing means (9 and 10 respectively) of its own for controlling the respective positions of the regulating plungers (7, 8).
摘要:
A fuel injector includes a solenoid operated valve that is opened on a periodic basis to meter fuel through a plurality of discharge passages, and also includes a rectifier valve that allows air to flow through the discharge passages when the solenoid operated valve is closed. The rectifier valve has a disc configuration with a flat valving surface adjacent an air inlet passage and an irregular surface adjacent an air outlet passage. When the solenoid operated valve is opened to meter fuel through the discharge passages, the flat valving surface of the rectifier valve is engaged against a wall about the air inlet passage to seal the air inlet passage. When the solenoid operated valve is closed, the irregular surface of the rectifier valve is engaged against the opposite wall about the air outlet passage and allows air to flow through the air inlet passage and the air outlet passage to the injector discharge passages.