Mikuni Corporation

Hiroyuki Yanazawa

Yasuhiro Tochigi

Etsuo Nishimura

Natthavud Songprasert

An intake manifold Mincludes: a surge tank, formed in an elongated tubular shape in a direction of a predetermined axis S; branch pipes, extending from the surge tank; an upstream tubular part, continuous on an upstream side of the surge tank; an opening part, open at an upstream end of the upstream tubular part; a flange part, formed around the opening part; an annular seal groove, formed at the flange part around the opening part; and fastening parts, formed at the flange part around the annular seal groove to fasten a throttle unit. A groove width of the annular seal grooveis formed to decrease in the vicinity of the fastening part.

Intake manifold and intake device

An air intake device offers simplified construction, reduced size, lowered cost, etc., while facilitating disposing of throttle body and driving part in intake air passage, allowing throttle body to be reliably held, and eliminating possible occurrence of intake air leakage, etc., thus positively securing the performance. The air intake device includes an actuator and an intake air manifold made of resin. In actuator, there are provided a throttle body, a throttle valve, a motor for opening/closing throttle valve, and a power transmission mechanism. Throttle valve and motor are positioned and held on one side of a support member, and power transmission mechanism is on the other side. In intake air manifold, a housing chamber is provided. When a fixing part of support member is jointed to a part to be fixed of intake air manifold, throttle body and motor are accommodated in a predetermined position in housing chamber.

Growing community of inventors

Kanagawa, Japan

Hiroyuki Yanazawa