摘要:
The present invention relates to a supercharged internal-combustion, notably indirect-injection engine comprising at least one cylinder (10) with two types of supercharged air intake means (12, 14), one type for non-carbureted supercharged air intake (12) and another type for carbureted supercharged air intake (14), said intake means being supplied with supercharged air by supply means (38). According to the invention, supply means (38) comprise a specific supercharged air supply device (46, 50) for each type of intake means (12, 14).
摘要:
An internal combustion engine has an intake device (1), the intake pipes (5 to 8) for the intakes of cylinders of the internal combustion engine and actuators for adjusting the effective pipe lengths of the intake pipes (5 to 8) by closing or opening at least one opening of the intake pipes (5 to 8) up to a hollow body and at least one actuator for controlling the actuators. Within a first speed range whose upper limit is a first threshold value (N1), the actuators are moved into a closed position. For a speed (N), exceeding a first threshold value (N1) and being less than a second threshold value (N2), the actuators are moved into a leakage position. For a speed exceeding the second threshold value (N2), the actuators are moved into an open position.
摘要:
A valve body of an intake controlling valve, which is selectively opened and closed to communicate and interrupt communications between chambers which are divided by a partition wall in a resin surge tank, may be used for internal combustion engines. A variable intake device for an internal combustion engine is manufactured such that the valve unit is integrally assembled to a resin surge tank body by installing the valve unit into an opening of an outer wall of the resin surge tank and an opening of the partition wall formed at the partition wall and fixing the valve unit. Between the frame and the opening of the partition wall, and the valve unit and the opening of the outer wall are integrally fixed at their contact portions through adhesion with an adhesive or by welding.
摘要:
Air intake manifolds (32) for vehicle engines (50) may include a plate-shaped short runner valve (16) that is rotatably disposed within an aperture (19) of a wall partition (42). The valve (16) may be operated to open and close the aperture. A flange (22) may extend from an inner surface of the aperture and the flange may define a sealing face (22b). An elastic sealing member (21) may be disposed along a peripheral edge of the valve. The sealing member may include first and second projections (21a, 21b) extending from the peripheral edge of the valve. The first and second projections may be arranged in a substantially V-shape. Further, the terminal ends of the first and second projections are preferably disposed so as to closely contact the sealing face when the valve is rotated to the closed position.
摘要:
An intake manifold for an internal combustion engine, being variable in an intake length, comprising: a first volume chamber disposed in a downstream side of a throttle valve for controlling an intake air passing through an air-cleaner; first independent intake passages being divided from said first volume chamber for guiding the air within said first volume chamber into each of cylinders; second independent intake passages joining and conducting to each of said first independent intake passages, each of which is provided for said each of cylinders respectively; a second volume chamber conducting to all of said second independent intake passages; and valves being provided in said independent intake passages for conducting/shutting off between said second volume chambers and said first independent intake passage, wherein said first independent intake passage and said first volume chamber are built up with a plural number of synthetic resin molded members, and said second independent intake passage surrounding said valve is formed with a synthetic resin molded member being separate from the synthetic resinmoldedmember forming said first volume chamber and said first independent intake passage.
摘要:
The object of this invention is that a suction device for an internal combustion engine is to be compact. The suction device comprising a casing having an air inlet and a plurality of outlets, a filter in the casing for filtering air from said air inlet, a collection chamber in the casing for receiving air from the filter, at least one throttle valve in the casing for controlling the flow of air from said filter to said collection chamber, and a plurality of suction pipes. According to the present invention, the suction device can be made compact to thereby effectively use an engine room of an automobile.
摘要:
A air induction system actuates two variable mechanisms by the resonant supercharging and a volume variable mechanism of the air induction system by a common drive means in order to reduce the manufacturing cost and to improve the output performance in the broader range of the engine speed. The air induction system includes a plurality of independent air intake passages for supplying the induction air to each engine cylinder which are sorted into two air intake passage groups, an air expanding chamber being in communication with the air intake passage groups, a first switching valve for controlling the communication between the air expanding chamber, two branch passages for supplying the induction air into the air expanding chambers, a volumetric chamber, and a second switching valve for controlling the communication between the volumetric chamber and the branch passages, an actuator for driving the first and second switching valves. The first and second switching valves are controlled to be opened and closed in accordance with the engine speed range.
摘要:
An air intake system comprises a connection pipe which is arranged between opposing resonance containers. Inside the connection pipe, a swivellable throttle valve is provided which is inserted into the connection pipe by way of an opening in the connection pipe. The opening is closed by a bearing support which is held on the connection pipe by fasteners. The throttle valve and the bearing support form a prefabricated constructional unit.
摘要:
Two-bank internal-combustion engine, per cylinder bank air intake system has, per cylinder bank, one resonance container and, centered thereto, has another container. By way of suction pipes, the resonance containers are connected to the cylinders and are provided with connecting pipes among one another, with fresh air entering into one of these. Suction pipe extensions are connected to the other containers, and extend partially in the resonance containers while being aligned at a distance with the inflow funnels of the suction pipes. The combination of the connecting pipes acting as a resonance pipe with the suction pipe extensions acting as a ram pipe causes a mean pressure increase, whereby the torque as well as the power of the internal-combustion engine are increased.
摘要:
An air intake system has two resonance chambers coupled together by connecting pipes. The resonance chambers are connected to the cylinders by individual intake pipes. A further common chamber is coupled by means of resonance pipes to the resonance chamber. The connecting pipe and several of the resonance pipes have controllable blocking elements. A branch that supplies air to the system is connected with one of the connecting pipes and the further chamber. To deliberately increase the mean pressure, the blocking elements can be connected in cascade fashion as the rpm rises, causing the coupled volume to increase.