Suction structure for internal combustion engines
AssigneesHitachi, Ltd., Hitachi Car Engineering Co., Ltd.
InventorsTERUHIKO MINEGISHI, HIROYUKI NEMOTO, MITUNORI NISHIMURA
Life of this patent
Estimating the term…
Abstract
A structure in which an input shaft which is a member for connecting a cylindrical switching valve and a rotary mechanism, and the cylindrical switching valve are brought into contact with each other via a ball-like member. When this structure is employed, the ball-like member serves as a kind of ball joint, so that rotation can be smoothly transmitted even when there is an angle of inclination between the direction of the axis of rotation of the input shaft by which the rotary mechanism for rotating the cylindrical switching valve and the cylindrical switching valve are connected, and the direction of the axis of rotation of this switching valve.
Claims12
An air intake apparatus comprising an air chamber connected commonly to a plurality of intake pipes for supplying intake air to an internal combustion engine, an air intake passage connected fluidly between the intake pipe and the air chamber, and a switching valve for blocking the flow in the air intake passage, further comprising;
- a drive member for operating said switching member,
- a connection member for connecting said drive member and said switching member, and
- a ball-like member provided between said connection member and said switching member,
- wherein movement between said connection member and said switching member is transferred through said ball-like member.
An air intake apparatus comprising an air chamber connected commonly to a plurality of intake pipes for supplying intake air to an internal combustion engine, an air intake passage connected fluidly between the intake pipe and the air chamber, and a switching valve which can block the flow in the air intake passage,
- wherein a cylindrical hole into which said switching member is inserted is provided in said air intake passage,
- wherein said switching member has valves of the same number as said air intake passages to open and close their passages, said plurality of valves and a rotation axis are fabricated integrally to form a rotation body, and a groove into which a seal ring is inserted is provided in the peripheral surface of the rotation axis, and
- wherein a divided portion of the seal ring is at a position opposed to the wall.
An air intake apparatus comprising an air chamber connected commonly to a plurality of intake pipes for supplying intake air to an internal combustion engine, an air intake passage connected fluidly between the intake pipe and the air chamber, and a switching valve which can block the flow in the air intake passage,
- wherein an opening of said air chamber is provided only to said air intake passage,
- wherein said drive unit for driving the switching valve is connected to said switching valve, and
- wherein said intake pipe, said air chamber, said air intake passage, said switching valve, and said drive unit are assembled integrally in the internal combustion engine.
Dependencies are inferred from the claim text.