US3917164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic temperature and humidity regulating apparatus
Assignee: Individual
•
Filing: 1974-07-02
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Granted: 1975-11-04
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Expires: 1994-07-02
Abstract
Abstract The present invention relates to an automatic temperture and humidity regulating apparatus for indoor air comprising (1) a heat exchanger (2) a constant flow valve device being so associated and constituted that a differential pressure regulating valve having a diaphragm is connected to an inlet side of the heat exchanger and that a temperature compensating valve having a characteristic to pass a desired flow at its fixed rate by self-regulation of the degree of valve opening in sensing temperature variation through a temperature sensing sleeve is connected to an outlet side of the heat exchanger whereby pressure of the downstream side of the outlet of the temperature compensating valve is fed back to the differential pressure regulating valve as a signal pressure and (3) a humidity regulating valve providing a humidity detecting body disposed in a ventilating passage of the heat exchanger.
Inventors
- 👤 Hisashi Motoyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:37
CPC Classifications
F; F24; F24F; F24F11/00; F24F11/70; F24F11/80; F24F11/83; F24F11/84; G; G05; G05D; G05D23/00; G05D23/185; G05D23/1856; F24F11/30; F24F2110/00; F24F2110/10; F24F2110/20; F24F2221/00; F24F2221/54; F24F6/00; F24F6/12; F24F6/14
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
242 words
Control apparatus adapted to be used for compensating temperature in a heat exchanger having an inlet and an outlet, said apparatus comprising a differential pressure regulating valve located in said inlet side of said heater exchanger and controlling flow thereto, said differential pressure regulating valve having an upper part and a lower part, a flexible means in said upper part dividing the latter into an upper section and a lower section, a spring in said upper section biasing said flexible means in a direction to open the differential pressure regulating valve, a valve stem connected to said flexible means, said valve stem extending from said lower section into said lower part, a valve element on said valve stem disposed in said lower part, a temperature compensating valve located in said outlet side of said heat exchanger sensing ambient temperAture and controlling outlet flow therefrom, said temperature compensating valve having a temperature sensing sleeve having fluid therein, piston means on said temperature compensating valve operable to move up and down and control said temperature compensating valve according to the expansion of said fluid in said sensing sleeve, said temperature compensating valve having an outlet, and conduit means between said outlet of said temperature compensating valve and said upper section of said upper part of said differential pressure regulating valve, whereby said conduit transmits the outlet pressure of said temperature compensating valve to said differential pressure regulating valve to effect control of the latter.
Claim 2
Dependent Claim
242 words
Control apparatus adapted to be used for compensating temperature in a heat exchanger having an inlet and an outlet, said apparatus comprising a differential pressure regulating valve located in said inlet side of said heater exchanger and controlling flow thereto, said differential pressure regulating valve having an upper part and a lower part, a flexible means in said upper part dividing the latter into an upper section and a lower section, a spring in said upper section biasing said flexible means in a direction to open the differential pressure regulating valve, a valve stem connected to said flexible means, said valve stem extending from said lower section into said lower part, a valve element on said valve stem disposed in said lower part, a temperature compensating valve located in said outlet side of said heat exchanger sensing ambient temperAture and controlling outlet flow therefrom, said temperature compensating valve having a temperature sensing sleeve having fluid therein, piston means on said temperature compensating valve operable to move up and down and control said temperature compensating valve according to the expansion of said fluid in said sensing sleeve, said temperature compensating valve having an outlet, and conduit means between said outlet of said temperature compensating valve and said upper section of said upper part of said differential pressure regulating valve, whereby said conduit transmits the outlet pressure of said temperature compensating valve to said differential pressure regulating valve to effect control of the latter.
Claim 3
Dependent Claim
123 words
Control apparatus adapted to be used for compensating temperature in a heat exchanger having an inlet and an outlet, said apparatus comprising a differential pressure regulating valve located in said inlet of said heat exchanger and controlling flow thereto, said differential pressure regulating valve having means defining a pressure regulating chamber, a temperature compensating valve located in said outlet of said heat exchanger sensing ambient temperature and controlling outlet flow therefrom, said temperature compensating valve having an outlet port, and conduit means between said outlet port of said temperature compensating valve and said pressure regulating chamber for transmitting the outlet pressure of said temperature compensating valve to the pressure regulating chamber of said differential pressure regulating valve to effect control of the latter.
Claim 4
Dependent Claim
123 words
Control apparatus adapted to be used for compensating temperature in a heat exchanger having an inlet and an outlet, said apparatus comprising a differential pressure regulating valve located in said inlet of said heat exchanger and controlling flow thereto, said differential pressure regulating valve having means defining a pressure regulating chamber, a temperature compensating valve located in said outlet of said heat exchanger sensing ambient temperature and controlling outlet flow therefrom, said temperature compensating valve having an outlet port, and conduit means between said outlet port of said temperature compensating valve and said pressure regulating chamber for transmitting the outlet pressure of said temperature compensating valve to the pressure regulating chamber of said differential pressure regulating valve to effect control of the latter.
Claim 5
Dependent Claim
81 words
Control apparatus according to claim 2 wherein said differential pressure regulating valve includes a valve control section disposed on a valve body, said valve control section being divided into a first chamber and a second chamber by a flexible means, said first chamber constituting said pressure regulating chamber, said second chamber being exposed to the pressure of the fluid at the inlet of said heat exchanger, and a spring in said first chamber biasing said flexible means towards said second chamber.
Claim 6
Dependent Claim
86 words
Control apparatus according to claim 3, including a valve element connected to said flexible means, and a valve seat in said valve body cooperable with said valve element to control fluid flow through said differential pressure regulating valve, whereby said flexible means is urged in one direction by said spring and by the pressure in said conduit means tending to open said differential pressure regulating valve and in an opposite direction by the pressure in said second chamber tending to close said differential pressure regulating valve.
Claim 7
Dependent Claim
29 words
Control apparatus according to claim 2 wherein said temperature compensating valve comprises means sensitive to temperature to open and close the temperature compensating valve in response to temperature variations.
References Cited (Backward Citations)
US2003585A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-03 | 1979-05-05 | 1979-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-03 | 1983-05-05 | 1983-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-03 | 1987-05-05 | 1987-11-04 | $7700.00 | Window Closed / Lapsed |