[특허]High efficiency furnace/air handler blower housing with a side wall having an exponentially increasing expansion angle

Regal Beloit America, Inc.

High efficiency furnace/air handler blower housing with a side wall having an exponentially increasing expansion angle

국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F04D-029/44 F24H-003/08 F04D-029/42 F24H-003/06 F24H-009/00
출원번호	US-0018088 (2013-09-04)
등록번호	US-9513029 (2016-12-06)
발명자 / 주소	Post, Steven W.
출원인 / 주소	Regal Beloit America, Inc.
대리인 / 주소	Thompson Coburn LLP
인용정보	피인용 횟수 : 0 인용 특허 : 63

초록 ▼

An air distribution blower housing for an air handler such as a residential furnace is designed with a volute-shaped outer wall that has an exponentially increasing expansion angle in the direction of air flow through the blower housing for at least a portion of the volute-shaped outer wall length. This results in the blower housing having an enlarged air outlet opening that slows down and spreads out the air flow from the blower housing over a greater area of the furnace heat exchanger. The blower housing thereby enables less air pressure drop through the heat exchanger, which increases the efficiency of the blower motor operation. The design of the blower housing also efficiently turns the velocity head of the air flow through the housing to usable static air pressure at the housing air outlet.

대표청구항 ▼

1. An air handler comprising: an enclosure having an interior volume and a distribution air outlet opening on the enclosure that is adapted for communication with an air distribution system;a fan wheel in the enclosure interior volume, the fan wheel having an outer diameter dimension and a circumference dimension, the fan wheel having a center axis of rotation that defines mutually perpendicular axial and radial directions and the fan wheel being rotatable about the center axis of rotation in a rotation direction;a blower housing in the enclosure interior volume, the blower housing containing the fan wheel and having an air outlet opening, the blower housing having an outer wall with a volute-shaped portion that extends from a first end of the volute-shaped portion around the fan wheel in the rotation direction to a second end of the volute-shaped portion, and the volute-shaped portion of the blower housing outer wall having first and second sections as the volute-shaped portion extends in the rotation direction around the fan wheel, the first section of the volute-shaped portion subtending an angle of 270° at the fan wheel center axis and the second section of the volute-shaped portion subtending an angle of 90°, the first section of the volute-shaped portion having a positive expansion angle which increases at an exponential rate of 1.2 to 1.4, the second section of the volute-shaped portion having an expansion angle which increases at an exponential rate of 1.5 to 2.1. 2. The air handler of claim 1, further comprising: the first section of the volute-shaped portion subtending an angle of at most 270° at the fan wheel center axis. 3. The air handler of claim 1, further comprising: the air handler being a furnace. 4. The air handler of claim 1, further comprising: the volute-shaped portion of the outer wall consisting essentially of the first section and the second section of the volute-shaped portion. 5. An air handler comprising: an enclosure having an interior volume and a distribution air outlet opening on the enclosure that is adapted for communication with an air distribution system;a fan wheel in the enclosure interior volume, the fan wheel having an outer diameter dimension and a circumference dimension, the fan wheel having a center axis of rotation that defines mutually perpendicular axial and radial directions and the fan wheel being rotatable about the center axis of rotation in a rotation direction;a blower housing in the enclosure interior volume, the blower housing containing the fan wheel and having an air outlet opening, the blower housing having an outer wall with a volute-shaped portion that extends from a first end of the volute-shaped portion around the fan wheel in the rotation direction to a second end of the volute-shaped portion, and the volute-shaped portion of the blower housing outer wall having first and second sections as the volute-shaped portion extends in the rotation direction around the fan wheel, where the first section of the volute-shaped portion has a positive expansion angle and an expansion angle of the second section of the volute-shaped portion increases at an exponential rate of 1.5 to 2.1;the air outlet opening having a minimum radial dimension and a ratio of the minimum radial dimension and the fan wheel outer diameter dimension being at least 0.73.

이 특허에 인용된 특허 (63)

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Gatley, Jr., William Stuart, Furnace blower housing with integrally formed exhaust transition.
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Post, Steven W., High efficiency furnace/air handler blower housing with a side wall having an exponentially increasing expansion angle.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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연합인증

High efficiency furnace/air handler blower housing with a side wall having an exponentially increasing expansion angle

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연합인증

High efficiency furnace/air handler blower housing with a side wall having an exponentially increasing expansion angle

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대표청구항 ▼

연구과제 타임라인

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