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1. 发明授权

US06663366B2 Compressor having cooling passage integrally formed therein 有权
公开(公告)号：US06663366B2
公开(公告)日：2003-12-16
申请号：US10136125
申请日：2002-05-01
申请人： Hiroshi Okada , Sota Shibasaki , Kazuhiro Ojika , Mamoru Shimoda
发明人： Hiroshi Okada , Sota Shibasaki , Kazuhiro Ojika , Mamoru Shimoda
IPC分类号： F01C2104
CPC分类号： F04C29/04
摘要： A compressor is composed of a pair of rotors engaging with each other and a driving mechanism having plural gears for driving the pair of rotors. The pair of rotors is disposed in a rotor chamber and the driving mechanism in a gear chamber, both chambers being separated by a separating wall. Fluid such as air is introduced into the rotor chamber from an inlet port and compressed therein, and the compressed air is delivered through an outlet port formed at a position close to the driving mechanism. A cooling water passage is formed at a bottom portion of the gear housing to cool lubricant encapsulated in a gear chamber. Additional cooling water passages may be made to further cool the components of the compressor.

2. 发明授权

US06585503B2 Screw compressor having a shaped discharge port 有权
标题翻译：具有成形排出口的螺杆式压缩机
公开(公告)号：US06585503B2
公开(公告)日：2003-07-01
申请号：US09983108
申请日：2001-10-23
申请人： Hiroshi Okada , Sota Shibasaki
发明人： Hiroshi Okada , Sota Shibasaki
IPC分类号： F04C1816
CPC分类号： F04C29/12 , F04C18/086 , F04C18/16
摘要： Pulsation, vibration and noise of a screw compressor is caused by compressed air abruptly discharging through a discharge port in a rotor chamber during rotation of a pair of rotors. The inside opening shape of the discharge port is within two tip curved lines drawn by the pair of rotors and coincides with the two tip curved lines at least at one point when fluid starts to discharge. In one embodiment, the inside opening shape is triangular with a vertex at a point of intersection of the two tip curved lines and a base side along the discharge end face of the rotor chamber. With this, when the air compressed in the compression chamber discharges from the discharge port, the discharge opening area of the discharge port smoothly increases. This reduces the pulsation of the discharged air and thus reduces the vibration and noise of the screw compressor.
摘要翻译：螺旋式压缩机的脉动，振动和噪音是由一对转子旋转期间的压缩空气通过转子室中的排出口突然排出而引起的。排出口的内部开口形状在由一对转子拉出的两个尖端曲线内，并且至少在流体开始排出时的一个点处与两个末端曲线重合。在一个实施例中，内侧开口形状是三角形的，顶点位于两个尖端曲线的交点处和沿着转子室的排放端面的基底侧。由此，当在压缩室中压缩的空气从排出口排出时，排出口的排出口面积平滑地增大。这减少了排出的空气的脉动，从而减少了螺杆式压缩机的振动和噪音。

3. 发明授权

US06733258B2 Gas compressor apparatus having a discharge pulsation reducing cooler 有权
标题翻译：具有放电脉冲降低冷却器的气体压缩机装置
公开(公告)号：US06733258B2
公开(公告)日：2004-05-11
申请号：US10270529
申请日：2002-10-16
申请人： Hiroshi Okada , Sota Shibasaki
发明人： Hiroshi Okada , Sota Shibasaki
IPC分类号： F04C2904
CPC分类号： F04C29/061 , F04C29/04 , F04C29/068
摘要： A discharge pulsation reducing cooler B is provided to cover the circumferential periphery of a compressor A. The discharge pulsation reducing cooler B has a delivery passage 41 and a jacket 43 covering that, and cooling water is circulated through a passage formed between the delivery passage 41 and the jacket 43. Delivered air flowing through the delivery passage 41 is cooled by the cooling water. In particular, because heat exchange efficiency is promoted by turbulence caused by the pulsation in the delivery passage 41, the delivered air is cooled efficiently. Also, pulsation is reduced in first and second expansion chambers 44, 45 in the delivery passage 41, and pulsation noise in the delivery passage 41 is reduced by the cooling water passage 42 and the jacket 43.
摘要翻译：设置排出脉动降低冷却器B以覆盖压缩机A的周向周边。排出脉动降低冷却器B具有一个输送通道41和一个覆盖其的外壳43，冷却水通过形成在输送通道41 并且夹套43.流经输送通道41的输送空气被冷却水冷却。特别地，由于由输送通道41中的脉动引起的紊流促进了热交换效率，所以输送的空气被有效地冷却。此外，在输送通道41中的第一和第二膨胀室44,45中的脉动减小，并且通过冷却水通道42和护套43减小输送通道41中的脉动噪声。

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