Inside/outside air switching device for vehicular air conditioning unit
AssigneeDenso Corporation
InventorsHironobu Murakami, Mitsuru Kosaka
Life of this patent
Estimating the term…
Abstract
In an inside/outside air switching device, a rotary door includes a rotation shaft, a periphery wall rotating about the rotation shaft, and side plates connecting between the ends of the periphery wall and the rotation shaft. The rotary door is supported in a case for opening and closing an inside air introduction port and an outside air introduction port of the case. When the door partially opens the inside air introduction port and mainly opens the outside air introduction port in an air mixing mode, the periphery wall projects toward the outside air introduction port by a predetermined distance. The projected portion of the periphery wall is covered with a cover member disposed on a cowl.
Claims12
An inside/outside air switching device for an air conditioning unit of a vehicle comprising:
- a case defining an air passage through which air flows, the case forming a first port through which inside air inside a compartment is introduced and a second port through which outside air outside the compartment is introduced;
- a rotary door rotatably supported in the case for selectively opening and closing the first port and the second port, wherein the rotary door includes a rotation shaft, a periphery wall moved about a rotation shaft, and side walls connecting between axial ends of the periphery wall and the rotation shaft, wherein in an air mixing mode the rotary door is disposed such that the periphery wall projects toward the second port by a predetermined distance so that the rotary door partially opens the first port and mainly opens the second port;
- and
- a cover member disposed to cover a projected portion of the periphery wall.
An inside/outside air switching device for a vehicular air conditioning unit comprising:
- a case defining a first port through which inside air inside a compartment is introduced and a second port through which outside air outside the compartment is introduced, wherein the case has an intermediate wall between the first port and the second port, and the intermediate wall defines a sealing surface on a perimeter of the second port;
- a rotary door rotatably supported in the case for selectively opening and closing the first port and the second port, wherein the rotary door includes a rotation shaft, a periphery wall rotating about the rotation shaft, side walls connecting between axial ends of the periphery wall, and first and second sealing portions formed at ends of the periphery wall, and the first sealing portion is brought into contact with the sealing surface of the case when the rotary door fully opens the second port;
- and
- an elastic sealing member disposed to create seal between the intermediate wall and the periphery wall when the rotary door partially opens the first port and mainly opens the second port in an air mixing mode.
Dependencies are inferred from the claim text.