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1. 发明授权

US4261180A Refrigerator 失效
标题翻译：冰箱
公开(公告)号：US4261180A
公开(公告)日：1981-04-14
申请号：US974494
申请日：1978-12-29
申请人： Shigekazu Nozawa , Masayuki Urashin , Hiroaki Kuno , Mitsuhiko Miyagawa , Hiroshi Takagi
发明人： Shigekazu Nozawa , Masayuki Urashin , Hiroaki Kuno , Mitsuhiko Miyagawa , Hiroshi Takagi
IPC分类号： F25B1/047 , F25B41/06 , G05D23/12 , G05D23/30
CPC分类号： F25B41/062
摘要： About 1 to about 25% by weight of a liquid refrigerant is mixed into a refrigerant gas to be introduced into a screw compressor by suction on the basis of the refrigerant gas in a refrigerator comprising a screw compressor, a condenser, and an expansion valve and an evaporator connected to one another in series. A cooling effect as well as a sealing effect can be satisfactorily attained thereby.
摘要翻译：约1至约25重量％的液体制冷剂被混合到制冷剂气体中，以通过在包括螺杆式压缩机，冷凝器和膨胀阀的制冷机中的制冷剂气体的吸入而被引入螺杆式压缩机，以及蒸发器彼此串联连接。可以令人满意地获得冷却效果以及密封效果。

2. 发明授权

US06554595B2 Compressor with oil-mist separator 有权
公开(公告)号：US06554595B2
公开(公告)日：2003-04-29
申请号：US09846262
申请日：2001-05-02
申请人： Takeshi Hida , Shigekazu Nozawa , Masayuki Urashin , Hiroki Osumimoto , Hirotaka Kameya , Atsushi Watanabe
发明人： Takeshi Hida , Shigekazu Nozawa , Masayuki Urashin , Hiroki Osumimoto , Hirotaka Kameya , Atsushi Watanabe
IPC分类号： F04C2902
CPC分类号： F04C29/026 , F25B2400/02 , Y10S418/01
摘要： In an oil-mist separator included by a compressor, an inlet passage directs a flow axis of a mixture gas including a mist of lubrication oil and a gas to be taken out of the compressor with a pressurized condition when the mixture gas reaches a chamber, and a discharge port for discharging the gas from the chamber opens in the chamber.

3. 发明授权

US06884049B2 Screw compressor and method of manufacturing rotor for the same 失效
标题翻译：螺杆式压缩机及其制造方法相同
公开(公告)号：US06884049B2
公开(公告)日：2005-04-26
申请号：US10299683
申请日：2002-11-20
申请人： Takeshi Hida , Masayuki Urashin , Shigekazu Nozawa , Hiroki Ohsumimoto , Hirotaka Kameya , Atsushi Watanabe
发明人： Takeshi Hida , Masayuki Urashin , Shigekazu Nozawa , Hiroki Ohsumimoto , Hirotaka Kameya , Atsushi Watanabe
IPC分类号： F04C18/16 , C21D1/20 , C21D5/00 , C23C8/26 , C23C8/28 , F04C18/08 , F04C29/00 , F01C21/00
CPC分类号： C21D5/00 , C21D1/20 , C23C8/26 , C23C8/28 , F04C18/084 , F04C18/16 , F04C2230/41 , F04C2230/92 , F05C2201/0445 , Y10T29/49242
摘要： A screw compressor of which a female rotor is driven by a motor, and of which a male rotor is driven by the female rotor. The male or female rotor is composed of a member which is made of cast iron and is subjected to surface hardening treatment or heat treatment including quenching. The surface hardening treatment may include sulphonitriding or nitiriding treatment. In the case of subjecting the cast iron to the heat treatment, austemper treatment is applied.
摘要翻译：一个螺旋压缩机，一个母转子由一个电动机驱动，一个阳转子由母转子驱动。公转轮或母转子由铸铁制成的构件，进行表面硬化处理或热处理，包括淬火。表面硬化处理可以包括磺化氮化或氮化处理。在对铸铁进行热处理的情况下，施加奥氏体处理。

4. 发明申请

US20050063852A1 Screw compressor and method of manufacturing rotor for the same 审中-公开
公开(公告)号：US20050063852A1
公开(公告)日：2005-03-24
申请号：US10978470
申请日：2004-11-02
申请人： Takeshi Hida , Masayuki Urashin , Shigekazu Nozawa , Hiroki Ohsumimoto , Hirotaka Kameya , Atsushi Watanabe
发明人： Takeshi Hida , Masayuki Urashin , Shigekazu Nozawa , Hiroki Ohsumimoto , Hirotaka Kameya , Atsushi Watanabe
IPC分类号： F04C18/16 , C21D1/20 , C21D5/00 , C23C8/26 , C23C8/28 , F04C18/08 , F04C29/00 , F01C21/00
CPC分类号： C21D5/00 , C21D1/20 , C23C8/26 , C23C8/28 , F04C18/084 , F04C18/16 , F04C2230/41 , F04C2230/92 , F05C2201/0445 , Y10T29/49242
摘要： A screw compressor of which a female rotor is driven by a motor, and of which a male rotor is driven by the female rotor. The male or female rotor is composed of a member which is made of cast iron and is subjected to surface hardening treatment or heat treatment including quenching. The surface hardening treatment may include sulphonitriding or nitiriding treatment. In the case of subjecting the cast iron to the heat treatment, austemper treatment is applied.

5. 发明授权

US06506039B1 Screw compressor 有权
标题翻译：螺杆压缩机
公开(公告)号：US06506039B1
公开(公告)日：2003-01-14
申请号：US09996824
申请日：2001-11-30
申请人： Hiroki Osumimoto , Shigekazu Nozawa , Masayuki Urashin , Takeshi Hida , Hirotaka Kameya , Atsushi Watanabe
发明人： Hiroki Osumimoto , Shigekazu Nozawa , Masayuki Urashin , Takeshi Hida , Hirotaka Kameya , Atsushi Watanabe
IPC分类号： F04C1826
CPC分类号： F04C18/16 , F04C11/00 , F04C18/086 , F04C29/02 , F04C29/026 , Y10S55/17 , Y10S418/01
摘要： The screw compressor according to the invention is provided with a main casing 1 having male and female rotors 6, a discharge casing 3 having a discharge passage 15 for compressed gas discharged from the rotors, and an oil reservoir 19 for accumulating oil separated from the compressed gas. The discharge casing is provided with a cylindrical oil separating space section 4 formed therein so as to communicate with the discharge passage, which discharge passage is connected in a tangential direction of the oil separating space section. Further, a discharge port 14 is provided so as to communicate with the oil separating space section, and a cylindrical member 5 is further provided in the oil separating space section so as to be concentric therewith. The oil separating space section and the oil reservoir are connected to each other through a communication passage having a cross-sectional area smaller than that of the oil separating space section.
摘要翻译：根据本发明的螺杆式压缩机设置有具有阳转子和阴转子6的主壳体1，具有用于从转子排出的压缩气体的排出通道15的排出壳体3和用于积聚从压缩机分离的油的储油器19 加油站。排出壳体设置有形成在其中的圆柱形油分离空间部分4，以便与排油通道连通，该排出通道沿油分离空间部分的切线方向连接。此外，设置有与油分离空间部分连通的排出口14，并且在油分离空间部分中进一步设置与其分离的圆筒部件5。油分离空间部分和储油器通过具有小于油分离空间部分的横截面积的连通通道相互连接。

6. 发明授权

US06183227B2 Screw compressor 有权
公开(公告)号：US06183227B2
公开(公告)日：2001-02-06
申请号：US09287560
申请日：1999-04-06
申请人： Takeshi Hida , Shigekazu Nozawa , Masayuki Urashin , Noriyuki Yamazaki
发明人： Takeshi Hida , Shigekazu Nozawa , Masayuki Urashin , Noriyuki Yamazaki
IPC分类号： F01C102
CPC分类号： F04C29/026 , Y10S418/01
摘要： Oil separation from discharge gas of a screw compressor is performed with a demister provided in a discharge chamber. For solving unevenness in the speed distribution of the gas in the chamber, at least one auxiliary demister for oil separation is disposed at a local position immediately behind or near the downstream side of an outlet of a discharge passage in a discharge casing so as to be perpendicular to the flow direction of the gas at the outlet. In addition, at least one obstacle plate is disposed on the downstream side of the auxiliary demister.

7. 发明授权

US07014437B2 Screw compressor 有权
标题翻译：螺杆压缩机
公开(公告)号：US07014437B2
公开(公告)日：2006-03-21
申请号：US10765059
申请日：2004-01-28
申请人： Hiroki Ohsumimoto , Masayuki Urashin , Shigekazu Nozawa , Takeshi Hida , Hirotaka Kameya
发明人： Hiroki Ohsumimoto , Masayuki Urashin , Shigekazu Nozawa , Takeshi Hida , Hirotaka Kameya
IPC分类号： F01C1/16
CPC分类号： F04C29/026 , F04C18/16 , F04C2240/30 , Y10S55/17 , Y10S418/01
摘要： An oil separator and an oil reservoir are formed integral with a main casing. Also, an opening communicated with the oil reservoir is formed in a part of a lower portion of an oil separation space of the oil separator. Preferably, the opening is formed so that its width is increased as it approaches an outer peripheral side of the oil separation space from a center thereof. Further, a safety valve is installed so that a line connecting between the safety valve and the center of the oil separator is made substantially in parallel to axes of screw rotors.
摘要翻译：油分离器和储油器与主壳体一体形成。此外，在油分离器的油分离空间的下部的一部分形成有与储油器连通的开口。优选地，开口形成为使得其宽度随着其从中心接近油分离空间的外周侧而增加。此外，安装安全阀，使得连接在安全阀和分油器中心之间的管线基本上与螺杆转子的轴线平行。

8. 发明授权

US06273693B1 Screw compressor 有权
公开(公告)号：US06273693B1
公开(公告)日：2001-08-14
申请号：US09730576
申请日：2000-12-07
申请人： Takeshi Hida , Shigekazu Nozawa , Masayuki Urashin , Noriyuki Yamazaki
发明人： Takeshi Hida , Shigekazu Nozawa , Masayuki Urashin , Noriyuki Yamazaki
IPC分类号： F01C102
摘要： Oil separation from discharge gas of a screw compressor is performed with a demister provided in a discharge chamber. For solving unevenness in the speed distribution of the gas in the chamber, at least one auxiliary demister for oil separation is disposed at a local position immediately behind or near the downstream side of an outlet of a discharge passage in a discharge casing so as to be perpendicular to the flow direction of the gas at the outlet. In addition, at least one obstacle plate is disposed on the downstream side of the auxiliary demister.

9. 发明授权

US06257855B1 Screw fluid machine 有权
标题翻译：螺旋流体机
公开(公告)号：US06257855B1
公开(公告)日：2001-07-10
申请号：US09442467
申请日：1999-11-18
申请人： Hirotaka Kameya , Shigekazu Nozawa , Masayuki Urashin , Takeshi Hida , Masakazu Aoki
发明人： Hirotaka Kameya , Shigekazu Nozawa , Masayuki Urashin , Takeshi Hida , Masakazu Aoki
IPC分类号： F03C200
CPC分类号： F04C18/084 , F04C18/16
摘要： A screw rotor for use in screw compressors and screw vacuum pumps comprises a pair of rotors including a male rotor and a female rotor. These rotors have helical lobes in an axial direction and mesh with each other to form a compression chamber. Depending upon a lobe configuration of the rotors, suction pressure and discharge pressure, a negative torque for self-rotation as well as a positive torque opposing to rotation due to a compression action is generated on the female rotor in operation. This phenomenon generates when a value obtained by integrating a torque acting on the female rotor over an entire cross section in an axial direction of the rotors becomes negative. When the negative torque is generated, noises due to tooth separating vibration is caused. Then, a lobe profile is defined such that a magnitude of the negative torque is smaller than that of the positive torque in respective cross sections of the female rotor. That is, a relationship between a radius of a point of contact on a leading surface side of the female rotor and a radius of a point of contact on a trailing surface side or curvatures of the rotors are such that the negative torque is not generated on the lobe profile.
摘要翻译：用于螺杆式压缩机和螺杆式真空泵的螺杆转子包括一对转子，包括一个公转子和一个母转子。这些转子在轴向上具有螺旋形叶片并且彼此啮合以形成压缩室。根据转子的凸角构造，吸入压力和排出压力，在操作中在母转子上产生自旋转的负转矩以及由于压缩动作而与旋转相反的正转矩。当通过将在母转子上作用的转矩在转子的轴向上的整个横截面上积分得到的值变为负时，会产生这种现象。当产生负转矩时，会引起由于齿分离振动引起的噪音。然后，定义凸角轮廓，使得负转矩的大小小于阴转子的相应横截面中的正转矩的大小。也就是说，阴转子的前表面侧的接触点的半径与后表面侧的接触点的半径或转子的曲率之间的关系使得不产生负转矩肺叶剖面。

10. 发明申请

US20100247366A1 Screw compressor 审中-公开
标题翻译：螺杆压缩机
公开(公告)号：US20100247366A1
公开(公告)日：2010-09-30
申请号：US12708118
申请日：2010-02-18
申请人： Eisuke KATO , Masayuki Urashin , Ryuichiro Yonemoto , Shinichiro Yamada , Kenji Tojo
发明人： Eisuke KATO , Masayuki Urashin , Ryuichiro Yonemoto , Shinichiro Yamada , Kenji Tojo
IPC分类号： F04C18/16
CPC分类号： F04C18/16 , F01C21/10 , F04C23/008
摘要： In order to obtain a screw compressor which is small in size and weight and has ease of maintenance and high reliability, the screw compressor comprises a screw rotor, a low-pressure-side bearing and a high-pressure-side bearing which support the screw rotor, a motor which drives the screw rotor, a motor casing which accommodates the motor, a main casing which accommodates the screw rotor and the low-pressure-side bearing, and a discharge casing which accommodates the high-pressure-side bearing. The motor casing, the main casing, and the discharge casing are accommodated in a steel pipe chamber, and the steel pipe chamber includes a low-pressure-side chamber and a high-pressure-side chamber which are able to be divided in the axial direction. By using a flange provided on an inner surface of the steel pipe chamber, a flange provided in the main casing, and a sealing component provided between the flanges, the steel pipe chamber is divided into a low-pressure-side space and a high-pressure-side space.
摘要翻译：为了得到尺寸小，重量轻，维修方便，可靠性高的螺杆式压缩机，螺杆式压缩机包括螺杆式转子，低压侧轴承和支承螺杆的高压侧轴承转子，驱动螺杆转子的马达，容纳马达的马达壳体，容纳螺杆转子和低压侧轴承的主壳体以及容纳高压侧轴承的排出壳体。马达壳体，主壳体和排出壳体容纳在钢管室中，钢管室包括能够沿轴向分割的低压侧室和高压侧室方向。通过使用设置在钢管室的内表面上的凸缘，设置在主壳体中的凸缘和设置在凸缘之间的密封部件，钢管室被分为低压侧空间和高压侧空间，压力侧空间。

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