Back to results
US 2016/0102770 A1Published application
Valve structure
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsKazutoshi WAKATSUKI, Nakaya TAKAGAKI, Hideyuki KOMITSU
Life of this patent
Estimating the term…
Abstract
A valve member 38 of a valve structure 32 is rotatably supported from an outer tube 34 by a rotation shaft 40. The rotation shaft 40 is fixed to the valve member 38 at a position inside a tangent to the outer periphery of the valve member 38 and avoiding the center point. A return spring 52 is a tension spring that causes tension force to constantly act on a link arm 54 to generate a rotation force toward the closing direction of the valve member 38.
Claims7
A valve structure comprising:
- a valve member that is provided at an exhaust pipe, and that rotates from a closed position closing off the exhaust pipe to an open position opening the exhaust pipe upon being contacted by exhaust gas;
- a rotation shaft that is fixed to the valve member at a position, when viewing the valve member along an exhaust gas flow direction, inside a tangent to an outer periphery of the valve member and avoiding a center point of the valve member, and that is attached to the exhaust pipe so as to be capable of rotating;
- a link member that is fixed to the rotation shaft and includes an action point at a position distanced from the rotation shaft in the flow direction;
- and
- a tension spring that is provided at the exhaust pipe, and that causes tension force to constantly act on the action point to generate a rotation force toward a closing direction of the valve member.
2 more elements
Dependencies are inferred from the claim text.