[특허]Overheat preventing method for prescribed displacement type compressor and apparatus for the same

Overheat preventing method for prescribed displacement type compressor and apparatus for the same 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F25B-041/00
출원번호	US-0870770 (1992-04-21)
우선권정보	JP-0196595 (1989-07-31)
발명자 / 주소	Hagita Naomi (Shimizu JPX) Mizuno Takao (Shimizu JPX)
출원인 / 주소	Hitachi, Ltd. (Tokyo JPX 03) Hitachi Shimizu Engineering Co., Ltd. (Shizuoka JPX 03)
인용정보	피인용 횟수 : 74 인용 특허 : 0

초록 ▼

An overheating prevention method for a fixed displacement type compressor having an overheating prevention device for introducing a part of high pressure liquefied coolant, liquefied in a compressor of a refrigeration cycle, into a compression chamber maintained under a compression stroke of the compressor through a connecting pipe, and for controlling a flow rate of the liquefied coolant flowing through the communication pipe to thereby cool the compressor. The connecting pipe is communicated with the compressor so that an average pressure within the compressor is reduced relative to a condensed pressure under a minimum operational pressure ratio condition at which the introduction of the liquefied coolant is required for cooling the compressor, within an operational pressure range in which the condensed pressure and evaporation pressure are respectively variable. The high pressure liquefied coolant may be introduced into the compression chamber, kept under the compression stroke, from a plurality of positions.

대표청구항 ▼

A method for preventing an overheating of a fixed displacement type compressor, the compressor including a compressor overheat preventing means including a connecting pipe for introducing a part of high pressure liquified coolant, liquified in a condenser of a refrigeration cycle, into a compression chamber maintained under a compression stroke of the compressor and for controlling a flow rate of the liquified coolant flowing through the connecting pipe to cool the compressor at a level of an operational pressure value not less than 3.5, the method comprising the steps of: providing a electromagnetic valve within said connecting pipe; communicating said connecting pipe with an interior of the compression chamber of the compressor at a position thereof wherein a pressure in the compression chamber is always less than a condensing pressure in an operational range of the refrigeration cycle; detecting a temperature of discharged gas from the compressor by a thermostat mounted on the compressor; and controlling said electromagnetic valve according to the detected temperature so as to maintain the temperature of discharge gas lower than a predetermined temperature of 110°C.

이 특허를 인용한 특허 (74)

Pham, Hung M.; Singh, Abtar; Caillat, Jean-Luc M.; Bass, Mark, Adaptive control for a cooling system.
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Hung M. Pham ; Abtar Singh ; Jean-Luc M. Caillat ; Mark Bass, Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor.
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Hung M. Pham ; Abtar Singh ; Jean-Luc M. Caillat ; Mark Bass, Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor.
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Pham Hung M. ; Singh Abtar ; Caillat Jean-Luc M. ; Bass Mark, Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor.
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Pham, Hung M.; Singh, Abtar; Caillat, Jean-Luc; Bass, Mark, Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor.
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Pham, Hung M; Singh, Abtar; Caillat, Jean-Luc; Bass, Mark, Cooling system with variable capacity control.
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Pham,Hung M; Singh,Abtar; Caillat,Jean Luc; Bass,Mark, Cooling system with variable duty cycle capacity control.
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Pham, Hung M.; Singh, Abtar; Caillat, Jean-Luc M.; Bass, Mark, Diagnostic system and method for a cooling system.
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Horowitz, Stephen A.; Strawser, Bridget; Clark, E. Todd; Azurmendi, Alain, Enterprise control and monitoring system and method.
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Arensmeier, Jeffrey N.; Hemmelgarn, Gregg M.; Alsaleem, Fadi M.; Abiprojo, Priotomo, HVAC system remote monitoring and diagnosis.
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Arensmeier, Jeffrey N.; Hemmelgarn, Gregg M.; Alsaleem, Fadi M.; Abiprojo, Priotomo, HVAC system remote monitoring and diagnosis.
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Alsaleem, Fadi M.; Hemmelgarn, Gregg M., Heat pump system with refrigerant charge diagnostics.
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Alsaleem, Fadi M.; Hemmelgarn, Gregg M., Heat-pump system with refrigerant charge diagnostics.
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Kates, Lawrence, Method and apparatus for monitoring a refrigeration-cycle system.
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Kates, Lawrence, Method and apparatus for monitoring a refrigeration-cycle system.
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Kates, Lawrence, Method and apparatus for monitoring a refrigeration-cycle system.
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Kates, Lawrence, Method and apparatus for monitoring refrigeration-cycle systems.
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Singh, Abtar; Woodworth, Stephen T.; Mitchell, James R., Monitoring a condenser in a refrigeration system.
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Pham, Hung M., Protection and diagnostic module for a refrigeration system.
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Pham, Hung M., System for refrigerant charge verification using two condenser coil temperatures.
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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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메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
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연합인증

Overheat preventing method for prescribed displacement type compressor and apparatus for the same 원문보기

초록 ▼

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Overheat preventing method for prescribed displacement type compressor and apparatus for the same 원문보기

초록 ▼

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연구과제 타임라인

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이 특허를 인용한 특허 (74)

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