摘要:
A variable intake system may include intake runners that are respectively connected to a plurality of cylinders to supply air that flows therein to the cylinders, a plenum, one side of which is connected to the intake runners and distributes the air to the intake runners, a first resonance pipe, one end of which is connected to the other side of the plenum to supply the air therein, a second resonance pipe, one end of which is connected to the other side of the plenum to supply the air therein, the length thereof being shorter than that of the first resonance pipe and the cross-section thereof being wider than that of the first resonance pipe, and a junction pipe connected to the other ends of the first and second resonance pipes and supplying the air to the first and second resonance pipes respectively from an intake line.
摘要:
A vehicle, such as a motorcycle, having an arrangement that inhibits the reduction of the fuel tank volume disposed to the rear of a moveable funnel that forms a portion of a variable length air intake. The vehicle includes an engine having an intake port. A fixed funnel introduces air to the intake port of the engine and a moveable funnel is position on the inlet side of the fixed funnel to selectively cooperate with the fixed funnel to deliver air to the intake port of the engine along with the fixed funnel. A parallel linkage moveably supports the moveable funnel. A fuel tank is disposed to the rear side of the moveable funnel and a motor that drives the parallel linkage is disposed on the opposite side to the fuel tank from the moveable funnel.
摘要:
A vehicle, such as a motorcycle, includes an engine having at least one intake port. An air intake assembly introduces air into the intake port. In one arrangement, the air intake assembly includes a stationary funnel and a movable funnel positioned on the inlet side of the fixed funnel and selectively cooperates with the stationary funnel to deliver air to the intake port of the engine. A seal member creates at least a substantial seal between the fixed funnel and the movable funnel when the funnels are in cooperation with one another. A retention mechanism inhibits the seal member from disengaging with the funnel onto which the seal member is positioned. In one arrangement, the movable funnel is formed with one or more projections and the seal member is formed with one or more recesses that accommodate the projections. The projection may be a flange or a boss, among other possibilities, and the recess is configured to accommodate the specific projection.
摘要:
A stepless air intake system is disposed on a throttle body of an engine. Each of plural cylinders has an intake tract to funnel air for combustion.
摘要:
A vehicle, such as a motorcycle, that includes an engine air intake arrangement with a variable length intake passage. The motorcycle includes an engine having an intake port. A fixed funnel delivers air to the intake port of the engine. A moveable funnel is positioned on the intake side of the fixed funnel and selectively cooperates with the fixed funnel to deliver air to the intake port of the engine. A parallel linkage moveably supports the moveable funnel relative to the fixed funnel. An air cleaner box, in which the fixed funnel and the moveable funnel are disposed, includes a protrusion at a portion that covers the moveable funnel and that prevents the occurrence of contact with the moveable funnel.
摘要:
An intake control device changes an intake conduit length from a first length to a second length according to whether or not an engine speed has reached a predetermined threshold value. The threshold value is predetermined on the basis of both an engine output torque in the state of the intake conduit length set to the first length and an engine output torque in the state of the intake conduit length set to the second length.
摘要:
An outboard motor mounted to a hull of a watercraft includes a V-type engine having right and left cylinder banks positioned in a cowling and having a crankshaft generally vertically disposed when the watercraft is under a running condition. A surge tank is disposed in the cowling. Right and left side long intake conduits and right and left side short intake conduits both connect the surge tank to intake ports of respective right and left banks of cylinders. The associated long intake conduits and short intake conduits can be selectively established depending on information about operational conditions of the hull and/or the outboard motor. The outboard motor includes right and left shut-off valves interchanging the long intake conduits and the short intake conduits. Right and left actuators individually actuate the right and left shut-off valves in accordance with information about operational conditions. A control means individually controls operations of the respective actuators.
摘要:
An intake manifold system for an international combustion engine includes an engine intake manifold having a valve; and an actuator connected to the valve to control valve opening. The actuator is connected to a pressurized coolant reservoir of the engine to allow the use of the pressurized fluid of the coolant reservoir to operate the actuator.
摘要:
A vehicle, such as a motorcycle, that includes an engine air intake arrangement with a variable length intake passage. The motorcycle includes an engine having an intake port. A fixed funnel delivers air to the intake port of the engine. A moveable funnel is positioned on the intake side of the fixed funnel and selectively cooperates with the fixed funnel to deliver air to the intake port of the engine. A parallel linkage moveably supports the moveable funnel relative to the fixed funnel. An air cleaner box, in which the fixed funnel and the moveable funnel are disposed, includes a protrusion at a portion that covers the moveable funnel and that prevents the occurrence of contact with the moveable funnel.
摘要:
In a variable air induction apparatus, a valve element is switched between one side to open a first air intake passage and close a second air intake passage, and the other side to open the second air intake passage and to close the first air intake passage. The first air intake passage and the second air intake passage have lengths different from each other. The valve element is fixed on a shaft member to rotate integrally with the shaft. A driving device applies a driving force to rotate the shaft member. An urging device urges the shaft member to rotate the valve element to be switched to any one of the one side and the other side.