IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0144661
(1980-04-28)
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발명자
/ 주소 |
- Sigworth
- Jr. Harrison W. (2 Idyll St. Orinda CA 94563)
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인용정보 |
피인용 횟수 :
16 인용 특허 :
11 |
초록
▼
Hitherto, efficient combined solar heating and passive cooling has not been available in a convenient, modular, relatively simple to install, reasonably priced apparatus. A reservoir (12) has a cover (32) having upper (42) and lower (44) reflective surfaces. Liquid (26) fills the reservoir (12) to a
Hitherto, efficient combined solar heating and passive cooling has not been available in a convenient, modular, relatively simple to install, reasonably priced apparatus. A reservoir (12) has a cover (32) having upper (42) and lower (44) reflective surfaces. Liquid (26) fills the reservoir (12) to a desired level (28). The cover (46) is positionable in either closing relation over the open top (24) of the reservoir (12) with the upper surface (42) reflecting sunlight away from the reservoir (12) or in open relation with the lower surface (44) aligned generally to reflect sunlight towards liquid (26). A normally floating raft (68) substantially covers the top surface (30) of the liquid (26) to retard cool weather daytime evaporation and other heat losses from the liquid (26). The raft (68) may be removed at night during warm weather to provide efficient evaporative and radiative cooling.
대표청구항
▼
A combined solar heating and passive cooling apparatus (10), comprising: a reservoir (12) having walls (14,16,18,20), a bottom (22) and an open top (24); a liquid (26,26′) filling said reservoir (12) to a desired liquid level (28), said liquid (28) having a top surface (30,30′); a cover (32,32′) hav
A combined solar heating and passive cooling apparatus (10), comprising: a reservoir (12) having walls (14,16,18,20), a bottom (22) and an open top (24); a liquid (26,26′) filling said reservoir (12) to a desired liquid level (28), said liquid (28) having a top surface (30,30′); a cover (32,32′) having peripheral edges (34,36,38,40) and a reflective lower surface (44); cover positioning means (46,46′) for selectively positioning said cover (32,32′) in either closing relation with said open top (24) or in open relation with said open top (24) with said lower surface (44) aligned generally to reflect sunlight generally towards said liquid (26); a raft (58,58′) which when positioned on said top surface (30,30′) always covers substantially all of said top surface (30,30′) sufficiently to retard substantially all evaporation of said liquid (26); raft moving means (68,68′) for selectively moving said raft (58,58′) to a location (70,70′) in which said top surface (30,30′) is substantially entirely exposed to favor direct evaporation of said liquid (26,26′) out of said reservoir (12) and into the surrounding atmosphere; wherein said cover positioning means (46,46′) operates in response to ambient temperature and to time of day to place said cover (32,32′), when ambient daytime temperature as measured during a selected time span is below a selected temperature, in said open relation during a first selected daytime period and in said closed relation during other than said first selected daytime period and to place said cover (32,32′), when ambient temperature as measured during said selected time span is above said selected temperature, in closed relation during a selected daytime period and in said open relation during other than said second selected daytime period; and wherein said raft moving means (68,68′) operates, when ambient daytime temperature as measured during said selected time span is above said selected temperature, to remove said raft (68,68′) from said top surface (30,30′) at least during other than said second selected daytime period.
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