Intake manifold and outboard motor
AssigneeMikuni Corporation
InventorHirobumi OOSAWA
Life of this patent
Estimating the term…
Abstract
An intake manifold includes: a surge tank, die-molded to temporarily store intake air; and branch pipes, in communication with the surge tank. The surge tank includes, on an outer wall thereof, a flange part and a reinforcement rib, a sensor unit configured to detect an intake air state quantity being installed to the a part. The flange part includes: a fitting hole, having an axis as a center to be fit with a detection part of the sensor unit; and boss parts, provided on a periphery of the fitting hole, and the flange part is formed to be rotationally symmetric with the axis as a center. The reinforcement rib includes a limitation piece interfering with a portion of the sensor unit to limit assembling at a time when the sensor unit is assembled erroneously for being deviated from a normal orientation.
Claims13
An intake manifold, suitable for an engine, the intake manifold comprising:
- a surge tank, die-molded to temporarily store intake air;
- and
- a plurality of branch pipes, in communication with the surge tank,
- wherein the surge tank comprises, on an outer wall of the surge tank, a flange part and a reinforcement rib, a sensor unit configured to detect a state quantity of the intake air being installed to the flange part,
- the flange part comprises:
- a fitting hole, having a predetermined axis as a center so as to be fit with a detection part of the sensor unit;
- and a plurality of boss parts, provided on a periphery of the fitting hole, and the flange part is formed to be rotationally symmetric with the axis as a center, and
- the reinforcement rib comprises a limitation piece interfering with a portion of the sensor unit to limit assembling at a time when the sensor unit is assembled erroneously for being deviated from a normal orientation.
Dependencies are inferred from the claim text.