[특허]HVAC air valve

DENSO International America, Inc.

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

HVAC air valve

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B60H-003/00
미국특허분류(USC)	454/156; 454/070; 454/161
출원번호	US-0416069 (2009-03-31)
등록번호	US-8439732 (2013-05-14)
발명자 / 주소	Belanger, Brian
출원인 / 주소	DENSO International America, Inc.
대리인 / 주소	Harness, Dickey & Pierce, P.L.C.
인용정보	피인용 횟수 : 0 인용 특허 : 4

초록

A passive air valve for an HVAC module allows air to flow through a conditioning passage in a single direction. The valve can be disposed on a downstream side of a heat exchanger. The valve can inhibit back airflow from one of the conditioning passages to the other one of the conditioning passages.

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1. An HVAC module comprising: a housing;an air supply passage in the housing;a blower operable to supply an air flow to the air supply passage;an outlet passage in the housing;a conditioning passage in the housing in flow communication with the air supply passage and the outlet passage;a heat exchanger supported in the housing by a partition wall of the housing;an actively controlled door operable to selectively block flow communication between the air supply passage and the conditioning passage; anda passive air valve having an open position allowing air to flow through the conditioning passage and the heat exchanger when originating from the air supply passage and a closed position inhibiting air from flowing through the conditioning passage and the heat exchanger when originating from the outlet passage; whereinthe passive air valve is in the open position during a heating mode of the HVAC module and is in the closed position during a cooling mode of the HVAC module. 2. The HVAC module of claim 1, wherein the passive air valve is a check valve. 3. The HVAC module of claim 1, wherein the heat exchanger is a heater core. 4. The HVAC module of claim 1, wherein the passive air valve is disposed immediately adjacent the heat exchanger. 5. The HVAC module of claim 1, wherein the passive air valve includes a passively moveable member movable from a first position allowing air to flow through the conditioning passage when originating from the air supply passage and a second position inhibiting air from flowing through the conditioning passage when originating from the outlet passage, the moveable member moving from the second position to the first position under the influence of an air flow in the conditioning passage that originates from the air supply passage. 6. The HVAC module of claim 5, wherein the moveable member is biased to the second position. 7. The HVAC module of claim 5, wherein the moveable member is a resilient flexible flap. 8. The HVAC module of claim 7, wherein the flap at least partially seals against a frame attached to the partition wall when in the second position and moves at least partially away from the frame when in the first position. 9. The HVAC module of claim 7, wherein the flap includes an engaging feature along an edge thereof, the conditioning passage includes a complimentary recess extending along a top portion thereof, and the engaging feature of the flap is disposed in the recess and retains the flap in the conditioning passage. 10. The HVAC module of claim 7, wherein the air valve includes a rigid frame with an opening therethrough, the frame is disposed in the conditioning passage, the flap is attached to the frame and covers the opening in the frame and at least partially seals against the frame when in the second position and moves at least partially away from the frame when in the first position. 11. The HVAC module of claim 5, wherein the moveable member is rigid door that swings between the first and second positions. 12. The HVAC module of claim 11, wherein the door at least partially seals against the heat exchanger when in the second position and moves at least partially away from the heat exchanger when in the first position. 13. The HVAC module of claim 11, wherein the door includes an engaging feature along an edge thereof, the conditioning passage includes a complimentary recess extending along a top portion thereof, and the engaging feature of the door is disposed in the recess and retains the door in the conditioning passage. 14. The HVAC module of claim 11, wherein the air valve includes a rigid frame with an opening therethrough, the frame is disposed in the conditioning passage, the door is attached to the frame and covers the opening in the frame and at least partially seals against the frame when in the second position and moves at least partially away from the frame when in the first position. 15. The HVAC module of claim 1, wherein: the air supply passage includes a main air supply passage;the outlet passage includes a first outlet passage, a second outlet passage, at least one first outlet communicating with the first outlet passage for directing a first conditioned flow of air to a first location and at least one second outlet communicating with the second outlet passage for directing a second conditioned flow of air to a second location different than the first location;the conditioning passage includes a first conditioning passage extending between the main air supply and the first outlet passage and a second conditioning passage extending between the main air supply passage and the second outlet passage;the heat exchanger includes a heater core disposed in the housing and extending through both of the first and second conditioning passages;the actively controlled door includes a first actively controlled door operable to selectively block flow communication between the main air supply passage and the first conditioning passage and a second actively controlled door operable to selectively block flow communication between the main air supply passage and the second conditioning passage; andthe passive air valve is disposed in the second conditioning passage on an opposite side of the heater core from the second actively controlled door, the passive air valve allowing air to flow through the heater core in the second conditioning passage when originating from the main air supply passage and inhibiting air flow through the second conditioning passage when originating from the second outlet passage, the passive air valve thereby inhibiting back airflow from the second conditioning passage to the first conditioning passage when the first and second actively controlled doors block flow communication between the respective first and second conditioning passages and the main air supply passage. 16. The HVAC module of claim 15, wherein the passive air valve includes a passively moveable member movable from a first position allowing air to flow through the second conditioning passage when originating from the main air supply passage and a second position inhibiting air from flowing through the second conditioning passage when originating from the second outlet passage, the moveable member moving from the second position to the first position under the influence of an air flow in the second conditioning passage that originates from the main air supply passage, the moveable member being biased to the second position. 17. The HVAC module of claim 16, wherein the moveable member is a resilient flexible flap that at least partially seals against the heater core when in the second position and moves at least partially away from the heater core when in the first position, and the flap includes an engaging feature along an edge thereof, the second conditioning passage includes a complimentary recess extending along a top portion thereof, and the engaging feature of the flap is disposed in the recess and retains the flap in the second conditioning passage. 18. The HVAC module of claim 16, wherein the air valve includes a rigid frame with an opening therethrough, the frame is disposed in the second conditioning passage, the moveable member is a resilient flexible flap attached to the frame and covers the opening in the frame and at least partially seals against the frame when in the second position and moves at least partially away from the frame when in the first position. 19. The HVAC module of claim 16, wherein the moveable member is rigid door that swings between the first and second positions and at least partially seals against the heater core when in the second position and moves at least partially away from the heater core when in the first position, the door includes an engaging feature along an edge thereof, the second conditioning passage includes a complimentary recess extending along a top portion thereof, and the engaging feature of the door is disposed in the recess and retains the door in the second conditioning passage. 20. The HVAC module of claim 16, wherein the air valve includes a rigid frame with an opening therethrough, the frame is disposed in the second conditioning passage, the moveable member is rigid door that swings between the first and second positions and is attached to the frame and covers the opening in the frame and at least partially seals against the frame when in the second position and moves at least partially away from the frame when in the first position.

이 특허에 인용된 특허 (4)

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특허 상세정보

HVAC air valve

초록

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이 특허에 인용된 특허 (4)

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IPC 상세정보(version : 201201)

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특허 상세정보

HVAC air valve

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이 특허에 인용된 특허 (4)

IPC 상위 출원인

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상세정보조회

원문조회

IPC 상세정보(version : 201201)

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