| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 21 | Scroll compressor for extremely low temperature | JP26595892 | 1992-10-05 | JPH06117382A | 1994-04-26 | SHIBAMOTO YOSHITAKA; TAKIGAWA KEN; NAKAGAWA YOSHIAKI; OTSUBO TAKEO |
| PURPOSE: To provide a compressor which develops high efficiency when used under the condition of a pressure ratio of 2.5-3.0, in the operation of a helium expanding machine used as cryopump. CONSTITUTION: The number of turns of a scroll swirl body 12 is set to two turns or so, and the set capacity ratio is set within a range of 1.8-2.2 smaller than a capacity ratio of 2.7 for air conditioning, and the outlet holes 37 and 38 in an oil injection passage which extends from an oil supply pump are opened into a compression chamber midway in a compression passage, and cooling for the compresses gas is performed. Accordingly, when a helium expanding machine which is driven with a pressure ratio of 21.5-3.0 is driven, the excessive pressure loss and compression shortage loss are prevented, and the high efficiency can be developed. COPYRIGHT: (C)1994,JPO&Japio | ||||||
| 22 | PUMP ASSEMBLIES WITH FREEZE-PREVENTIVE HEATING | EP12708616.3 | 2012-02-22 | EP2678594A2 | 2014-01-01 | GRIMES, David, J. |
| Pumps are disclosed that include a pump housing and at least one movable pumping element situated in the housing. The pumping element(s) are magnetically driven by magnetically coupling an external magnet driver (e.g., a stator) to a driven magnet located in the housing. A control circuit selectively operates the stator and a heat-producing element, so as to energize the heat-producing element especially in a potential freezing condition when the pump is not being otherwise operated. Thus, the fluid in the pump is prevented from freezing, and freeze-related pump damage is avoided. The heat-producing element can be the stator itself energized differently from when the stator is used for driving the pump. | ||||||
| 23 | Electric pump for hydrogen circulation | EP07100734.8 | 2007-01-18 | EP1811181B1 | 2009-03-18 | FUJII, Toshiro; SUZUKI, Fumihiro; NAKANE, Yoshiyuki; KAGAMI, Masanao; SHIROMARU, Katsutoshi; KATO, Hiroaki |
| 24 | Dispositif de detente à spirales pour des temperatures cryogéniques | EP02077846.0 | 1997-02-06 | EP1251278A2 | 2002-10-23 | Claudet, Gérard |
Le dispositif de détente de fluide à l'état gazeux ou liquide ou en double phase, se caractérise en ce qu'il comporte un compartiment de détente comprenant :
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| 25 | Electric pump for hydrogen circulation | EP07100734.8 | 2007-01-18 | EP1811181A1 | 2007-07-25 | FUJII, Toshiro; SUZUKI, Fumihiro; NAKANE, Yoshiyuki; KAGAMI, Masanao; SHIROMARU, Katsutoshi; KATO, Hiroaki |
An electric pump for supplying a hydrogen gas to a fuel cell includes a rotary shaft rotatably inserted through an electric motor, a transmitting member (45) provided on one of an outer peripheral surface of the rotary shaft and an inner peripheral surface of the electric motor so as to be rotatable therewith, and a groove (47) formed in the other of the outer peripheral surface of the rotary shaft and the inner peripheral surface of the electric motor for the transmitting member to be inserted therein. The groove transmits a rotary torque of the electric motor to the rotary shaft by contacting an inner surface of the groove and the transmitting member and has an opening width along a rotary direction of the rotary shaft which is larger than the width of the transmitting member. The groove and the transmitting member produce an impact torque when the electric pump is started.
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| 26 | DISPOSITIF DE DETENTE A SPIRALES POUR DES TEMPERATURES CRYOGENIQUES | EP96925790.0 | 1996-07-16 | EP0839258A1 | 1998-05-06 | CLAUDET, Gérard |
| A temperature reduction device using scrolls for cryogenic expansion is disclosed. The device for expansion of a gaseous, liquid or two-phase fluid, comprising an expansion compartment which includes a first scroll (72), a second scroll (70) inside said first scroll, and means for enabling circular translation but not actual rotation of the second scroll inside the first scroll for fluid expansion. | ||||||
| 27 | 수소 순환용 전동 펌프 | KR1020060108113 | 2006-11-03 | KR100758171B1 | 2007-09-12 | 후지이도시로; 스즈키후미히로; 나카네요시유키; 가가미마사나오; 시로마루가츠토시; 가토히로아키 |
| 전동 모터의 대형화를 초래하는 일 없이 기동시의 발생 토크를 크게 하고, 회전체와 로터실이 동결에 의해서 붙어 있더라도 신속하게 기동할 수 있는 수소 순환용 전동 펌프를 제공하는 것. 전동 모터 (41) 에는 구동축 (31) 이 전동 모터 (41) 에 대하여 상대 회전 가능하게 삽입 통과됨과 함께, 구동축 (31) 의 주면 (31a) 에는 키 (45) 가 일체 회전 가능하게 형성되어 있다. 또한, 가이드 부재 (44) 의 내주면 (44a) 에는 키 (45) 가 삽입되는 삽입홈 (47) 이 오목하게 형성되어 있다. 삽입홈 (47) 의 개구폭은 키 (45) 의 폭보다 넓고, 키 (45) 와 삽입홈 (47) 의 내면 (47A, 47B) 이 맞닿지 않은 상태에서, 키 (45) 와 삽입홈 (47) 의 내면 (47A, 47B) 이 맞닿을 때까지 전동 모터 (41) 가 회전각 2° 이상 회전 가능하게 설정되어 있다. | ||||||
| 28 | 수소 순환용 전동 펌프 | KR1020060108113 | 2006-11-03 | KR1020070077043A | 2007-07-25 | 후지이도시로; 스즈키후미히로; 나카네요시유키; 가가미마사나오; 시로마루가츠토시; 가토히로아키 |
| A motor pump for circulating hydrogen is provided to rapidly start an electric motor by making torque large generated during a starting thereof although a rotary body and a rotor thread are adhered to each other by being frozen. A motor pump for circulating hydrogen comprises an electric motor(41), a driving shaft(31), a guide member(44), a key(45), and an insertion groove(47). The driving shaft is inserted in the electric motor rotatably relative to the electric motor. The key is rotatably formed on a main plane(31a) of the driving shaft. The insertion groove is concavely formed on an inner plane(44a) of the guide member and includes an opening. A width of the opening is larger than the width of the key. The electric motor rotates more than 2° until the key contacts to inner planes(47A,47B) of the insertion groove. | ||||||
| 29 | PUMP ASSEMBLIES WITH FREEZE-PREVENTIVE HEATING | PCT/US2012026034 | 2012-02-22 | WO2012116016A3 | 2013-07-11 | GRIMES DAVID J |
| Pumps are disclosed that include a pump housing and at least one movable pumping element situated in the housing. The pumping element(s) are magnetically driven by magnetically coupling an external magnet driver (e.g., a stator) to a driven magnet located in the housing. A control circuit selectively operates the stator and a heat-producing element, so as to energize the heat-producing element especially in a potential freezing condition when the pump is not being otherwise operated. Thus, the fluid in the pump is prevented from freezing, and freeze-related pump damage is avoided. The heat-producing element can be the stator itself energized differently from when the stator is used for driving the pump. | ||||||
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