Aisin Seiki Kabushiki Kaisha

Masato Ishii

Motonobu Hasegawa

Takuya Kato

Toshiyuki Oiwa

Kyohei Ninomiya

Yusuke Yoshida

Tomohiro Yamaguchi

Masayuki Kato

Hideto Yano

Keisuke Sekiguchi

Manaho Yoshida

Tomoyuki Hirabayashi

Kazuya Kondo

Yuta Tanaka

Shinichi Oya

Masaru Inoue

An air intake apparatus for an internal combustion engine, the air intake apparatus includes: an air intake apparatus main body portion introducing air into a cylinder; a port portion provided integrally with a downstream side end portion of the air intake apparatus main body portion and inserted into an air intake port in a cylinder head; an air intake passage formed inside the air intake apparatus main body portion and the port portion, and through which an air-fuel mixture containing air and fuel flows; an injector provided in the air intake apparatus main body portion and introducing the fuel into the air intake passage; and a heater heating the fuel introduced by the injector. The injector is disposed at a position where the fuel is capable of being injected into the heater.

Air intake apparatus for internal combustion engine

An air intake device includes: a valve body which includes a rotating shaft; a bearing member which rotatably supports the rotating shaft of the valve body; and an air intake port which includes a concave portion on which the bearing member is disposed, wherein the bearing member includes a positioning portion for positioning the bearing member with respect to the concave portion of the air intake port, facing surfaces which extend from the positioning portion along the concave portion of the air intake port and face each other in an inward radial direction of the rotating shaft with respect to the concave portion, with a gap therebetween, and protruding portions which protrude toward the concave portion of the air intake port from the facing surfaces and seal the gap.

Air intake device and air intake control valve

An intake device includes: a rotary shaft; and a resin-made intake valve including a rotary shaft press-fit guide hole provided at an end portion in a rotary axis direction to guide the rotary shaft when the rotary shaft is press-fitted, a rotary shaft press-fit hole provided on a more inner side than the rotary shaft press-fit guide hole in the rotary axis direction, the rotary shaft inserted through the rotary shaft press-fit guide hole being press-fitted into the rotary shaft press-fit hole, and a window portion exposing an outer surface of the rotary shaft, the resin intake valve being rotated together with rotation of the rotary shaft in the intake port to change intake air, in which the rotary shaft press-fit guide hole has a tapered shape portion which gradually decreases in cross-sectional area toward the rotary shaft press-fit hole when viewed from the rotary axis direction.

Intake device

An intake device includes: an intake port; and a valve body which is disposed in the intake port and is rotated around a rotation axial line between an open/closed position, in which the valve body includes a valve body main body made of a resin, an elastically deformable seal portion formed to extend along an outer circumferential portion of the valve body main body, and a projection which is provided at a surface part adjacent to a region in which the seal portion is formed in the valve body main body, and has a shape that gradually becomes tapered toward a tip end side.

Intake device and manufacturing method of valve body

In this air intake apparatus, a plurality of respective air intake ports include sealing surfaces that include inner wall surfaces with which valve bodies come into contact at the closed positions of the valve bodies, and the rotation angles of valve bodies located on a side relatively close to a drive source from their open positions to their closed positions are larger than the rotation angles of valve bodies located on a side relatively opposite to the drive source when a plurality of valve bodies are rotated from their open positions to their closed positions.

Air intake apparatus

An intake control valve includes a valve body being made of resin, the valve body configured to be pivotally mounted to a surge tank of an internal combustion engine, the valve body pivoting between an open position and a closed position to for opening and closing a fluid passage formed at a division wall, the division wall dividing inside of the surge tank into two portions; and a bearing being made of metal, the bearing being integrally provided with a first end portion of the valve body by insert molding when resin molding the resin-made valve body.

Intake control valve and intake apparatus

An air intake apparatus includes an air intake apparatus body including a surge tank, a valve body rotatably attached to the surge tank and configured to rotate between an open position and a closed position to open and close a fluid passage formed at a partition wall dividing an inside of the surge tank into two parts, the valve body being out of contact with the partition wall at the open position and being in contact with the partition wall at the closed position, the air intake apparatus body being formed by a first member to which the valve body is attached and a second member joined to each other, and the first member including a jig-receiving portion arranged in a vicinity of the fluid passage and configured to receive a jig holding the first member when the first member and the second member are being joined to each other.

Air intake apparatus and manufacturing method of air intake apparatus

The present air intake control valve includes a valve body and a seal portion being elastically deformable to seal between an inner wall surface of an air intake port and the valve body. The seal portion is formed in a bending configuration including a first hinge portion and a second hinge portion each serving as a supporting point upon elastic deformation of the seal portion. One of the first hinge portion and the second hinge portion is arranged at an upstream side of the air intake port and the other of the first hinge portion and the second hinge portion is arranged at a downstream side in a state where the valve body is at a closed position.

Air intake control valve and air intake apparatus

An airtightness maintaining structure for a butterfly valve includes a valve element having a rotating shaft and a valve body, a rotation supporting portion having a pivotably supporting member that fits onto the rotating shaft and pivotably supports the rotating shaft, and a rotating shaft seal arranged to contact in a fitting state both an end surface of a member on an outer radial and a surface of a member on an inner side either the rotation shaft or the pivotably supporting member and has an annular portion. In a closed valve state of the valve element, the rotating shaft seal moves radially due to a pressure difference between a high fluid pressure acting on one side of the valve element and a low fluid pressure acting on the other side and contacts both the valve element and the rotation supporting portion on the high fluid pressure side.

Airtightness maintaining structure for butterfly valve

This air intake control valve includes a valve body rotatably mounted on a surge tank of an internal-combustion engine, rotated between an open position and a closed position to open and close a fluid passage formed in a partition wall internally dividing the surge tank into two parts and a valve body sealing member arranged on the outer periphery of the valve body, providing a seal between the partition wall and the valve body by coming into contact with the partition wall of the surge tank at the closed position of the valve body.

An air intake control valve includes a body extending to divide an inner portion of a surge tank of a multi-cylinder internal combustion engine into two portions, the body serving as a divided surface to divide the inner portion of the surge tank into the two portions, a valve element operated to rotate for opening and closing a fluid passage formed at the body, and a seal member sealing between a sealed surface of the surge tank and an outer periphery of the body, the seal member including a seal portion constituted by two contact portions that make contact with the sealed surface in a state where the two contact portions extend in directions opposite from each other relative to the divided surface.

Air intake control valve

A fluid control valve, which includes a body forming a fluid passage and including a sealing surface positioned in the fluid passage, a valve body configured to rotate between an open position and closed position within the fluid passage, an elastic sealing member provided at a rim portion of the valve body, and a lip portion extended from the elastic sealing member to be directed towards a center portion of the valve body. The lip portion contacts the sealing surface and a surface of the lip portion facing the sealing surface is exposed to the fluid passage.

Growing community of inventors

Kariya, Japan

Masato Ishii