Passage opening and closing device
AssigneeDenso Corporation
InventorsSei Ozaki, Yoshihiro Suzuki, Fumitaka Yoshizumi, Takayuki Aoyama
Life of this patent
Estimating the term…
Abstract
The passage opening and closing device includes a casing in which an opening edge forms an opening of an air passage, and a sliding door slidably movable inside the casing to open and close the opening. A door end part of the sliding door faces a door facing wall of the opening edge when the sliding door is positioned at a closed position where the sliding door closes the opening. A gap flow-path extending in the door moving direction is formed between the door facing wall and the door end part. A distance between the door end part and the door facing wall decreases downstream in air flow in the gap flow-path so that the gap flow-path is a convergent flow path.
Claims8
A passage opening and closing device that opens and closes an air passage through which air passes, the passage opening and closing device comprising:
- a casing in which an opening edge defining an opening of the air passage is provided;
- and
- a sliding door slidably movable inside the casing to open and close the opening, wherein
- the sliding door includes a door end part that forms an end part of the sliding door in a door moving direction of the sliding door,
- the door end part faces the opening edge when the sliding door is placed at a closed position where the sliding door closes the opening,
- the opening edge includes a door facing wall that faces the door end part when the sliding door is placed at the closed position,
- the door facing wall defines a gap flow-path extending in the door moving direction between the door facing wall and the door end part,
- a distance between the door end part and the door facing wall when the sliding door is placed at the closed position continuously decreases downstream in air flow so that the gap flow-path is a convergent flow path, and
- change in the distance between the door end part and the door facing wall when the sliding door is placed at the closed position discontinuously shifts from decrease to increase at a downstream end of the convergent flow path.
A passage opening and closing device that opens and closes an air passage through which air passes, the passage opening and closing device comprising:
- a casing in which an opening edge defining an opening of the air passage is provided;
- and
- a sliding door slidably movable inside the casing to open and close the opening, wherein
- the sliding door includes a door end part that forms an end part of the sliding door in a door moving direction of the sliding door,
- the door end part faces the opening edge when the sliding door is placed at a closed position where the sliding door closes the opening,
- the opening edge includes a door facing wall that faces the door end part when the sliding door is placed at the closed position,
- the door facing wall defines a gap flow-path extending in the door moving direction between the door facing wall and the door end part,
- a distance between the door end part and the door facing wall when the sliding door is placed at the closed position decreases downstream in air flow so that the gap flow-path is a convergent flow path,
- the door end part includes a flat portion extending in the door moving direction, and
- the door facing wall includes an inclined portion that is inclined with respect to the flat portion so that a distance between the inclined portion and the flat portion increases with distance from the opening.
A passage opening and closing device that opens and closes an air passage through which air passes, the passage opening and closing device comprising:
- a casing in which an opening edge defining an opening of the air passage is provided;
- and
- a sliding door slidably movable inside the casing to open and close the opening, wherein
- the sliding door includes a door end part that forms an end part of the sliding door in a door moving direction of the sliding door,
- the door end part faces the opening edge when the sliding door is placed at a closed position where the sliding door closes the opening,
- the opening edge includes a door facing wall that faces the door end part when the sliding door is placed at the closed position,
- the door facing wall defines a gap flow-path extending in the door moving direction between the door facing wall and the door end part,
- a distance between the door end part and the door facing wall when the sliding door is placed at the closed position decreases downstream in air flow so that the gap flow-path is a convergent flow path, and
- the gap flow-path is a path through which an area upstream of the sliding door and an area downstream of the sliding door communicate with each other so that air flows through the gap flow-path when the sliding door is placed at the closed position.
Dependencies are inferred from the claim text.