US4526012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid temperature regulator
Assignee: Marelli Corp
•
Filing: 1983-09-27
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Granted: 1985-07-02
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Expires: 2003-09-27
Abstract
Abstract A liquid temperature regulator is disclosed which includes a refrigeration cycle comprising a compressor, a condenser and an evaporator, a liquid tank containing a kind of liquid to be temperature-controlled and the evaporator, and inlet and outlet tubes for feeding the liquid into the tank and feeding out the liquid from the tank. The regulator is provided with a by-pass path for the connection of the outlet and inlet ports of the compressor, a valve for opening and closing the valve and a temperature controller for controlling the valve according to the temperature of the liquid. The by-pass path is closed when the liquid temperature is higher than a preset value and it is closed when the liquid temperature is lower than the value.
Inventors
- 👤 Junji Chigira
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:59
CPC Classifications
F; F25; F25D; F25D31/00; F25D31/002; F25D31/003; F25B; F25B49/00; F25B49/02; F25B49/022; G; G05; G05D; G05D23/00; G05D23/19; G05D23/1919; G05D23/20; G05D23/24
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
207 words
A liquid temperature regulator comprising: a liquid tank for containing liquid whose temperature is to be controlled; attenuation chamber means for attenuating the amplitude and the high frequency component of a temperature waveform of liquid passing through said attenuation chamber means; means including an inlet line for feeding liquid into said liquid tank; means for feeding liquid into said attenuation chamber means from said tank; means including an outlet line for feeding liquid out of said attenuation chamber means; and refrigeration apparatus including: a compressor for compressing a refrigerant, a condenser connected to said compressor to liquefy the compressed refrigerant, and an evaporator in said tank connected to said condenser to evaporate the liquefied refrigerant and connected to said compressor to return the evaporated refrigerant thereto, thereby cooling the liquid within said liquid tank; means for detecting the temperature of the liquid in said liquid tank; a by-pass path for said compressor; and control means for controlling said by-pass path in such manner that when said temperature detecting means detects a liquid temperature higher than a predetermined value, said control means closes said by-pass path, and when said temperature detecting means detects a liquid temperature lower than a predetermined value, said control means opens said by-pass path.
Claim 2
Dependent Claim
207 words
A liquid temperature regulator comprising: a liquid tank for containing liquid whose temperature is to be controlled; attenuation chamber means for attenuating the amplitude and the high frequency component of a temperature waveform of liquid passing through said attenuation chamber means; means including an inlet line for feeding liquid into said liquid tank; means for feeding liquid into said attenuation chamber means from said tank; means including an outlet line for feeding liquid out of said attenuation chamber means; and refrigeration apparatus including: a compressor for compressing a refrigerant, a condenser connected to said compressor to liquefy the compressed refrigerant, and an evaporator in said tank connected to said condenser to evaporate the liquefied refrigerant and connected to said compressor to return the evaporated refrigerant thereto, thereby cooling the liquid within said liquid tank; means for detecting the temperature of the liquid in said liquid tank; a by-pass path for said compressor; and control means for controlling said by-pass path in such manner that when said temperature detecting means detects a liquid temperature higher than a predetermined value, said control means closes said by-pass path, and when said temperature detecting means detects a liquid temperature lower than a predetermined value, said control means opens said by-pass path.
Claim 3
Dependent Claim
46 words
The liquid temperature regulator according to claim 1, wherein said control means comprises a temperature controller connected to said temperature detecting means, and a valve means disposed in said by-pass path to open or close said path in response to an instruction from said temperature controller.
Claim 4
Dependent Claim
16 words
The liquid temperature regulator according to claim 2, wherein said valve means is an electromagnetic valve.
Claim 5
Dependent Claim
25 words
The liquid temperature regulator according to claim 1, wherein a liquid agitation means is provided in the vicinity of said evaporator in said liquid tank.
Claim 6
Dependent Claim
16 words
The liquid temperature regulator according to claim 4, wherein said agitation means is a rotary disk.
Claim 7
Dependent Claim
38 words
The liquid temperature regulator according to claim 5, wherein said inlet line is branched within said liquid tank and the ends of said branched line are located in the vicinity of the rotation center of said rotary disk.
Claim 8
Dependent Claim
30 words
The liquid temperature regulator according to claim 1, wherein a baffle plate is provided in the vicinity of said outlet line so as to block the streamline of the liquid.
Claim 9
Dependent Claim
30 words
The liquid temperature regulator according to claim 1, wherein said means for feeding liquid into said attenuation chamber means comprises diffusion means for diffusing liquid into said attenuation chamber means.
Claim 10
Dependent Claim
33 words
The liquid temperature regulator according to claim 8, wherein a baffle plate is provided in the vicinity of said diffusion means in said attenuation chamber means to block the streamline of the liquid.
Claim 11
Dependent Claim
32 words
The liquid temperature regulator according to claim 8, wherein said diffusion means comprises a wall of said attenuation chamber means provided with openings through which liquid passes into said attenuation chamber means.
Claim 12
Dependent Claim
29 words
The liquid temperature regulator according to claim 8, wherein said diffusion means comprises a tube in said attenuation chamber means provided with openings in the surface of the tube.
Claim 13
Dependent Claim
25 words
The liquid temperature regulator according to claim 11, wherein a baffle plate is provided in the vicinity of said tube in said attenuation chamber means.
Claim 14
Dependent Claim
88 words
The liquid temperature regulator according to claim 1, wherein said control means comprises: a temperature controller connected to said temperature detecting means for setting a given temperature range; valve means disposed between said condenser and said evaporator to control the flow of said refrigerant from said condenser to said evaporator in response to an instruction from said controller; and a pressure responsive valve means disposed in said by-pass path to open said path when the pressure of said refrigerant within said evaporator is lower than a predetermined value.
Claim 15
Dependent Claim
19 words
The liquid temperature regulator according to claim 1, wherein said attenuation chamber means is located in said liquid tank.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-07-01 | 1988-12-31 | 1989-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-01 | 1992-12-31 | 1993-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-01 | 1996-12-31 | 1997-07-02 | $7700.00 | Window Closed / Lapsed |