Vent control valve for fuel tank
AssigneeKyosan Denki Co., Ltd.
InventorsAkinari Sugiyama, Yusuke Mukasa
Life of this patent
Estimating the term…
Abstract
A vent control valve for a fuel tank controls a ventilation between a fuel tank and an outside, and includes: an annular valve seat defined in a case; a movable valve object which is movable relative to the valve seat; a seal component having an annular plate shape and held by the movable valve object to be seated on or separated from the valve seat to open and close a passage for ventilation; and an annular ridge part defined in the movable valve object or the seal component such that the movable valve object and the seal component are in contact with each other on an annular seal line.
Claims19
A vent control valve for a fuel tank, that controls a ventilation between a fuel tank and an outside, the vent control valve comprising:
- an annular valve seat defined in a case;
- a movable valve object which is movable relative to the valve seat;
- a seal component having an annular plate shape and held by the movable valve object to be seated on or separated from the valve seat to open and close a passage for ventilation;
- and
- an annular ridge part defined in the movable valve object or the seal component such that the movable valve object and the seal component are in contact with each other on an annular seal line, wherein
- the movable valve object has a retaining mechanism which holds the seal component,
- the ridge part is located on an outer side of a flange part of the retaining mechanism in a radial direction, and
- the movable valve object and the seal component are in contact with each other radially outside of a contact area between the valve seat and the seal component.
A vent control valve for a fuel tank, that controls a ventilation between a fuel tank and an outside, the vent control valve comprising:
- an annular valve seat defined in a case;
- a movable valve object which is movable relative to the valve seat;
- a seal component having an annular plate shape and held by the movable valve object to be seated on or separated from the valve seat to open and close a passage for ventilation;
- and
- an annular ridge part defined in the movable valve object or the seal component such that the movable valve object and the seal component are in contact with each other on an annular seal line, wherein
- the movable valve object has a retaining mechanism which holds the seal component,
- the ridge part is located on an outer side of a flange part of the retaining mechanism in a radial direction, and
- the annular seal line is located radially inside of a contact area between the valve seat and the seal component.
A vent control valve for a fuel tank, that controls a ventilation between a fuel tank and an outside, the vent control valve comprising:
- an annular valve seat defined in a case;
- a movable valve object which is movable relative to the valve seat;
- a seal component having an annular plate shape and held by the movable valve object to be seated on or separated from the valve seat to open and close a passage for ventilation;
- and
- an annular ridge part defined in the movable valve object or the seal component such that the movable valve object and the seal component are in contact with each other on an annular seal line, wherein
- the movable valve object has a retaining mechanism which holds the seal component in a radial direction of the movable valve object,
- the ridge part is located on an outer side of a flange part of the retaining mechanism in the radial direction, and
- a clearance is defined between an innermost periphery part of the seal component and an axial part of the movable valve object in the radial direction.
Dependencies are inferred from the claim text.