Abstract:
Supplementary control valve devices (26) may be utilized to control the flow of a fluid within an intake passage (16) of a reciprocating piston internal combustion engine and may include a valve member (56) axially reciprocally disposed within the intake passage and at least partially defining a solenoid armature (60). First and second solenoids (38, 50) are provided on opposite sides of the solenoid armature to reciprocally move the valve member between a valve open position and a valve closed position. Sealing contact faces are preferably defined by pole faces (68, 70) of the second solenoid and a peripheral fluid flow passage (34) extends through apertures (46) defined within the second solenoid and between the sealing contact faces. The valve member closes the peripheral fluid flow passage when pressed against the sealing contact faces. Springs (62, 64) preferably bias the valve member towards a central position between the first and second solenoids.
Abstract:
An air induction system (10) for use with an internal combustion engine (E) including an intake is disclosed. The system (10) includes a supercharger (12) and a valve assembly. The valve assembly comprises a valve (14) and a valve control mechanism (16). The supercharger (12) receives air through a supply opening (18), pressurizes it, and discharges it through an exhaust opening (20). The valve (14) is in communication with the supply opening (18) to control air supply thereto. The control mechanism (16) is coupled to the valve (14) and causes it to vary the air supply to the opening (18) in response to air pressure conditions downstream from the supercharger (12). In one embodiment, the control mechanism (16) varies the air supply responsive to air pressure in the intake in order to both throttle the supercharger (12) as well as substantially eliminate undesirable surge conditions therein. In another embodiment, the control mechanism (118) varies the air supply responsive to air pressure in the inlet (110) of a turbocharger (106) to provide supercharged air thereto at a substantially constant pressure.
Abstract:
To improve productivity of a connection member between first and second carburetors, and to reduce maintenance work area for a main drive throttle valve lever, a driven throttle valve lever and a connection lever, a main drive throttle valve lever is arranged to protrude in one side of a first carburetor, a driven throttle valve lever is arranged to protrude in one side of a second carburetor, the main drive throttle valve lever and the driven throttle valve lever are connected in one side by a connection lever. A cup member provided with a bottom portion and a peripheral wall portion and formed in a cup shape is arranged fixedly in one side of the first and second carburetors, the first and second carburetors are connected by the cup member, an opening portion of the cup member is closed by a cover member, and the main drive throttle valve lever, the driven throttle valve lever and the connection lever are arranged so as to be received inside the cup member closed by the cover member.
Abstract:
An intake air control valve of the invention has a valve body and a valve holder, and is attached to a communication hole on a partition wall separating a surge tank chamber within a surge tank of a multiple cylinder internal combustion engine by fitting and inserting a valve holder. A valve hole is formed within the valve holder, and a butterfly type valve body is attached via a valve shaft so as to freely open and close a valve hole. A seal member is fitted to a groove provided in a peripheral edge portion of the valve holder. The seal member is formed by a fitting and attaching portion fitted and attached to an inner side of the groove of the valve holder and a leading end seal portion brought into contact with an inner peripheral portion of the communication hole in the partition wall. Recess portions open to an inner side of the groove is provided in the fitting and attaching portion in parallel in a longitudinal direction so as to be sectioned by a plurality of ribs. Accordingly, it is possible to prevent the seal member fitted to a peripheral edge portion of the valve holder from falling away and it is possible to secure a good sealing property at a time of full closing.
Abstract:
The air induction system (10) includes a supercharger (12) and a valve assembly. The valve assembly comprises a valve (14) and a valve control mechanism (16). The supercharger (12) receives air through a supply opening (18) and pressurizes it. The valve (14) is in communication with the supply opening (18) to control air supply thereto. The control mechanism (16) is coupled to the valve (14) and causes it to vary the air supply to the opening (18) in response to air pressure conditions downstream from the supercharger (12). In one embodiment, the control mechanism (16) varies the air supply responsive to air pressure in the intake in order to both throttle the supercharger (12) as well as substantially eliminate undesirable surge conditions therein. Alternately, the control mechanism (118) varies the air supply responsive to air pressure in the inlet (110) of a turbocharger (106) to provide supercharged air thereto at a substantially constant pressure.
Abstract:
In an exhaust control valve having a valve housing and a valve body rotatably contained in the valve housing, a transmission member is fitted to an outer end of the valve shaft and protrudes from the outside of the valve housing. A bearing bushing for rotatably bearing an external circumferential surface of the valve shaft by its internal circumferential surface and rotatably bearing an end face of the valve body by its end face is mounted in the valve housing. The valve body is urged by load from a thrust spring for achieving a pressure contact seal condition between the opposed end faces of the bearing bush and the valve body.
Abstract:
To improve the efficiency of assembling multiple on-off valves into a manifold body and reduce resistance to rotation of a shaft after assembly, frame members (3) are fitted in downstream end portions of individual intake passage sections (12) of a manifold body (2), on-off valves (4) are placed inside the individual frame members (3) and a shaft (5) is passed through the on-off valves (4) in such a way that the frame members (3) constitute parts of inside walls of intake passages where the on-off valves (4) are located, the frame members (3) rotatably supporting the on-off valves (4) and the shaft (5). A cutout (23) is formed in a surrounding wall of each frame member (3), thereby making each frame member (3) expandable and compressible by elastic deformation. Protruding walls (24) swelling outward on both sides of the cutout (23) are formed on each frame member (3), and a recessed part (26) for accommodating the protruding walls (24) is formed in a wall surface of each intake passage section (12) of the manifold body (2). Further, there is formed a guide rail (27) which fits in the cutout (23) in the recessed part (26).
Abstract:
An intake head device for an internal combustion engine, which is suitable for impulse charging and/or residual exhaust gas purging, including a pressure accumulator (24) which may apply overpressure to the pressure passage via a pressure passage, so that this produces residual exhaust gas purging of the cylinder (16) when the inlet valve (18) is open and the impulse flap (21) is closed. The impulse charging is performed by a partial vacuum which is generated in the accumulator passage (22) by the air intake of the cylinder (16). The pressure accumulator arrangement of the invention has the advantage that the closing time of the flap (21) may be longer.
Abstract:
An intake system for an internal combustion engine of a motor vehicle, which includes a first air intake 10, which is arranged at a point in the motor vehicle that is advantageous for air intake, and a second air intake 11, which is arranged at a point that is protected from road spray and splashes of water. The two air intakes 10, 11 end in a common line 12 that communicates with the internal combustion engine. In the first air intake 10, a moisture sensor 14 is arranged. When water enters into the first air intake 10, this moisture sensor emits a signal that actuates a solenoid 23 to move a pivotable valve 13. In a first switching position pivotable valve 13 closes the second air intake 11 so that no air reaches line 12 from the second air intake 11. In a second position (shown in broken lines) pivotable valve 13 closes the first air intake 10 so that air reaches line 12 only through the second air intake 11.
Abstract:
An intake system of an engine comprises an intake module, in which a throttle body joint portion and an upstream portion of an intake manifold are formed in a single structure, and a downstream portion of the intake manifold extending from an engine body. A downstream end of the intake module is joined to the downstream portion of the intake manifold and an end portion of the intake module opposite to its portion joined to the downstream portion of the intake manifold is connected to an uppermost part of an oil filler pipe which is connected to the engine body. In this construction, the intake module is supported by the engine body via the oil filler pipe.