公开(公告)号：US4747755A

公开(公告)日：1988-05-31

申请号：US787089

申请日：1985-10-15

申请人： Akira Ohtsuki ,  Kaname Otsuka ,  Osamu Hikita

发明人： Akira Ohtsuki ,  Kaname Otsuka ,  Osamu Hikita

IPC分类号： F04C18/52 ,  F04B49/02 ,  F04B49/08 ,  F04C18/16 ,  F04C18/30 ,  F04C28/12 ,  F04C28/26 ,  F04C29/08

CPC分类号： F04C28/125

摘要： A capacity control device for a screw compressor provided with a capacity control passage and a slide valve adjusting the opening thereof, wherein the slide valve is driven in a closing direction due to a pressure difference between a high pressure and a low pressure and is moved in an opening direction thanks to function of a spring when the high pressure is balanced with the low pressure, and when the pressure difference between the high pressure and low pressure is lower to cause the slide valve to be open thanks to the function of the spring, the slide valve is moved in the closing direction against the spring by use of pressure in a compression-processing part in the screw compressor, thereby enabling to quickly transit from no load condition to a loaded condition.

摘要翻译： 一种用于螺杆式压缩机的容量控制装置，其具有容量控制通道和调节其开口的滑阀，其中，由于高压和低压之间的压力差，滑阀在关闭方向上被驱动并且被移动 当高压与低压平衡时，由于弹簧的功能而导致打开方向，并且当高压和低压之间的压力差较低时，由于弹簧的功能导致滑阀打开， 滑阀通过使用螺杆式压缩机中的压缩处理部分中的压力抵抗弹簧而在关闭方向上移动，从而能够从无负载状态快速转入负载状态。

公开(公告)号：US07640762B2

公开(公告)日：2010-01-05

申请号：US10570326

申请日：2004-08-17

申请人： Kaname Otsuka ,  Hiromichi Ueno ,  Kenichi Masaki ,  Kyo Tomikawa

发明人： Kaname Otsuka ,  Hiromichi Ueno ,  Kenichi Masaki ,  Kyo Tomikawa

IPC分类号： F25B49/00 ,  F25D17/04 ,  F25B41/00

CPC分类号： F25B1/047 ,  F25B1/10 ,  F25B2400/13 ,  F25B2600/2509 ,  F25B2700/21151 ,  F25B2700/21152

摘要： A refrigeration apparatus includes two sub passages which are branched from a main passage located between a condenser and an expansion part and which are connected to a compressor. On the sub passages are provided supercooling-use expansion parts, and supercooling-use heat exchangers for performing heat exchange between a refrigerant on an outlet side of the supercooling-use expansion part and a refrigerant of the main passage. Therefore, each time the refrigerant of the main passage passes through the two supercooling-use heat exchangers the degree of liquid supercooling of the refrigerant is increased.

摘要翻译： 制冷装置包括从位于冷凝器和膨胀部之间的主通道分支并与压缩机连接的两个副通路。 在副通路中设置有过冷却用膨胀部，以及用于在过冷却用膨胀部的出口侧的制冷剂与主通路的制冷剂之间进行热交换的过冷却用热交换器。 因此，主通道的制冷剂每当通过两个过冷却用热交换器时，制冷剂的液体过冷度增加。

公开(公告)号：US20070017249A1

公开(公告)日：2007-01-25

申请号：US10570326

申请日：2004-08-17

申请人： Kaname Otsuka ,  Hiromichi Ueno ,  Kenichi Masaki ,  Kyo Tomikawa

发明人： Kaname Otsuka ,  Hiromichi Ueno ,  Kenichi Masaki ,  Kyo Tomikawa

IPC分类号： F25B41/00

CPC分类号： F25B1/047 ,  F25B1/10 ,  F25B2400/13 ,  F25B2600/2509 ,  F25B2700/21151 ,  F25B2700/21152

摘要： A refrigeration apparatus includes two sub passages which are branched from a main passage located between a condenser and an expansion part and which are connected to a compressor. On the sub passages are provided supercooling-use expansion parts, and supercooling-use heat exchangers for performing heat exchange between a refrigerant on an outlet side of the supercooling-use expansion part and a refrigerant of the main passage. Therefore, each time the refrigerant of the main passage passes through the two supercooling-use heat exchangers the degree of liquid supercooling of the refrigerant is increased.

摘要翻译： 制冷装置包括从位于冷凝器和膨胀部之间的主通道分支并与压缩机连接的两个副通路。 在副通路中设置有过冷却用膨胀部，以及用于在过冷却用膨胀部的出口侧的制冷剂与主通路的制冷剂之间进行热交换的过冷却用热交换器。 因此，主通道的制冷剂每当通过两个过冷却用热交换器时，制冷剂的液体过冷度增加。

公开(公告)号：US06595761B2

公开(公告)日：2003-07-22

申请号：US09958887

申请日：2001-12-12

申请人： Kaname Otsuka ,  Hiroyuki Yoneda

发明人： Kaname Otsuka ,  Hiroyuki Yoneda

IPC分类号： F04B1700

CPC分类号： F04C23/00 ,  F04C18/16 ,  F04C29/04 ,  F04C2240/52

摘要： There is provided a screw compressor which needs neither a bed nor a coupling, therefore not involving alignment, and yet in which gas is not heated by the motor. The screw compressor has a compression section 21 and a motor section 22 inside a casing 20. Both a rotor 27 of a motor 23 and a screw 26 of the compression section 21 are fixed to one main shaft 25. The main shaft 25 is supported at three points by a total of three bearings of both-end rolling bearings 31, 32 and a central rolling bearing 33. A refrigerant passage 45 passes only through the compression section 21 and not through the motor section 22.