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公开(公告)号：US20110070117A1
公开(公告)日：2011-03-24
申请号：US12672196
申请日：2008-08-07
申请人： Harunori Miyamura , Tadashi Okada , Takayuki Takahashi , Kaname Ohtsuka , Toshihiro Susa , Hiromichi Ueno , Takanori Murono
发明人： Harunori Miyamura , Tadashi Okada , Takayuki Takahashi , Kaname Ohtsuka , Toshihiro Susa , Hiromichi Ueno , Takanori Murono
IPC分类号： F01C1/16
CPC分类号： F04C18/52 , F04C18/084 , F04C2270/17
摘要： In a single screw compressor, gates (51) of gate rotors (50) are to be engaged with spiral grooves (41) of a screw rotor (40). In each spiral groove (41) of the screw rotor (40), an area extending from a start point of the spiral groove (41) to a position in a compression stroke is a suction-side portion (45), and the remaining portion (portion up to a terminal point of the spiral groove (41)) is a discharge-side portion (46). In the discharge-side portion (46), a clearance between a wall surface (42, 43, 44) therein and the gate (51) is substantially “0 (zero).” A clearance between the wall surface (42, 43, 44) in the suction-side portion (45) and the gate (51) is wider than that between the wall surface (42, 43, 44) in the discharge-side portion (46) and the gate (51), and is gradually narrowed from the start point toward the terminal point in the spiral groove (41).
摘要翻译： 在单螺杆式压缩机中，门转子（50）的门（51）将与螺杆转子（40）的螺旋槽（41）接合。 在螺杆转子40的螺旋形槽41中，从螺旋槽41的起点延伸到压缩行程的位置为吸入侧部45，其余部分 （直到螺旋槽41的终点的部分）是排出侧部分（46）。 在排出侧部分（46）中，其中的壁表面（42,43,44）和浇口（51）之间的间隙基本上为“0（零）”。壁表面（42,43,44）之间的间隙 吸入侧部分45和门51之间的距离大于排出侧部分46和壁51中的壁面42,33,44之间的距离） 从螺旋槽（41）的起点朝向终点逐渐变细。
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公开(公告)号：US20100278678A1
公开(公告)日：2010-11-04
申请号：US12810598
申请日：2008-12-26
IPC分类号： F04C18/52
CPC分类号： F04C18/52 , F01C17/02 , F04C18/16 , F04C23/001 , F04C27/004 , F04C27/007 , F04C29/0078 , F04C29/124 , F04C2240/30 , F04C2240/52 , F04C2240/603 , F04C2270/16 , F04C2270/17 , F04C2270/58
摘要： A screw compressor includes a casing having a cylinder, a cylindrical-shaped screw rotor disposed in the cylinder, a gate rotor and a seal portion. The screw rotor has a plurality of spiral-shaped groove portions formed in an outer peripheral surface. The gate rotor has a plurality of tooth portions engaged with the groove portions of the screw rotor to define compression chambers on one side of the gate rotor. The tooth portions are formed at an outer peripheral surface of the gate rotor. The seal portion is disposed on a side of the gate rotor opposite to the one side where the compression chambers are defined. The seal portion is arranged to block a space between a neighboring pair of the tooth portions of the gate rotor.
摘要翻译： 螺杆式压缩机包括具有圆筒的壳体，设置在气缸中的圆柱形螺杆转子，闸转子和密封部。 螺杆转子具有形成在外周面的多个螺旋形槽部。 门转子具有与螺杆转子的槽部接合的多个齿部，以在闸转子的一侧上限定压缩室。 齿部形成在门转子的外周面。 所述密封部设置在与所述压缩室的一侧相对的所述闸转子的一侧。 密封部分布置成阻挡门转子的相邻的一对齿部之间的空间。
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公开(公告)号：US20100229595A1
公开(公告)日：2010-09-16
申请号：US12663908
申请日：2008-06-11
申请人： Nozomi Gotou , Harunori Miyamura , Hideyuki Gotou
发明人： Nozomi Gotou , Harunori Miyamura , Hideyuki Gotou
摘要： A compressor includes a casing, a screw rotor fitted in the casing, at least one economizer port, and a control unit. The at least one economizer port is arranged to discharge refrigerant into compression chambers formed between the casing and the screw rotor. The control unit is configured to advance timing of opening of the at least one economizer port to the compression chambers in accordance with increase in rotating speed of the screw rotor.
摘要翻译： 压缩机包括壳体，安装在壳体中的螺杆转子，至少一个节能器端口和控制单元。 至少一个节能器口被布置成将制冷剂排放到形成在壳体和螺杆转子之间的压缩室中。 控制单元被配置为根据螺杆转子的转速的增加将至少一个节能器口的打开时间提前到压缩室。
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公开(公告)号：US08348648B2
公开(公告)日：2013-01-08
申请号：US12672196
申请日：2008-08-07
申请人： Harunori Miyamura , Tadashi Okada , Takayuki Takahashi , Kaname Ohtsuka , Toshihiro Susa , Hiromichi Ueno , Takanori Murono
发明人： Harunori Miyamura , Tadashi Okada , Takayuki Takahashi , Kaname Ohtsuka , Toshihiro Susa , Hiromichi Ueno , Takanori Murono
CPC分类号： F04C18/52 , F04C18/084 , F04C2270/17
摘要： In a single screw compressor, gates (51) of gate rotors (50) are to be engaged with spiral grooves (41) of a screw rotor (40). In each spiral groove (41) of the screw rotor (40), an area extending from a start point of the spiral groove (41) to a position in a compression stroke is a suction-side portion (45), and the remaining portion (portion up to a terminal point of the spiral groove (41)) is a discharge-side portion (46). In the discharge-side portion (46), a clearance between a wall surface (42, 43, 44) therein and the gate (51) is substantially “0 (zero).” A clearance between the wall surface (42, 43, 44) in the suction-side portion (45) and the gate (51) is wider than that between the wall surface (42, 43, 44) in the discharge-side portion (46) and the gate (51), and is gradually narrowed from the start point toward the terminal point in the spiral groove (41).
摘要翻译： 在单螺杆式压缩机中，门转子（50）的门（51）将与螺杆转子（40）的螺旋槽（41）接合。 在螺杆转子40的螺旋形槽41中，从螺旋槽41的起点延伸到压缩行程的位置为吸入侧部45，其余部分 （直到螺旋槽41的终点的部分）是排出侧部分（46）。 在排出侧部分（46）中，其中的壁表面（42,43,44）和浇口（51）之间的间隙大致为零（零）。 吸入侧部分（45）中的壁表面（42,43,44）和浇口（51）之间的间隙比排出侧部分的壁表面（42,43,44）之间的间隙宽 46）和栅极（51）之间，从螺旋槽（41）的起点向终点逐渐变细。
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公开(公告)号：US20120003113A1
公开(公告)日：2012-01-05
申请号：US13256572
申请日：2010-03-15
IPC分类号： F01C1/12
CPC分类号： F04C18/16 , F04C18/52 , F04C29/0014 , F04C29/021 , F04C29/028
摘要： A screw compressor includes a casing, a screw rotor, an oil sump containing lubricant oil, a lubrication passage and a flow rate controller. The screw rotor is inserted in a cylinder portion of the casing to form a fluid chamber. The screw rotor rotates to suck a fluid into the fluid chamber for compression. The lubrication passage supplies the lubricant oil in the oil sump to the fluid chamber due to a difference in pressure between the oil sump and the fluid chamber. The flow rate controller reduces a flow rate of the lubricant oil supplied to the fluid chamber in accordance with a decrease in operating capacity of the screw compressor.
摘要翻译： 螺杆式压缩机包括壳体，螺杆转子，含有润滑油的油底壳，润滑通路和流量控制器。 螺杆转子插入壳体的圆筒部分中以形成流体室。 螺杆转子旋转以将流体吸入流体室以进行压缩。 由于油底壳和流体室之间的压力差，润滑通道将油底壳中的润滑油供应到流体室。 流量控制器根据螺杆式压缩机的运行能力的降低而降低供应到流体室的润滑油的流量。
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公开(公告)号：US20100284848A1
公开(公告)日：2010-11-11
申请号：US12810951
申请日：2008-12-26
IPC分类号： F04C18/16
CPC分类号： F04C18/52 , F01C17/02 , F04C18/16 , F04C23/001 , F04C27/004 , F04C27/007 , F04C29/0078 , F04C29/124 , F04C2240/30 , F04C2240/52 , F04C2240/603 , F04C2270/16 , F04C2270/17 , F04C2270/58
摘要： A screw compressor includes a screw rotor having a plurality of helical grooves, a casing containing the screw rotor and a gate rotor. The casing includes a discharge port on an inner peripheral surface of the casing. The gate rotor has gates meshing with the helical grooves of the screw rotor to compress gas in compression chambers to discharge the gas from the discharge port after being compressed. The compression chambers are defined by the helical grooves, the casing, and the gates. The discharge port is divided into a first port and a second port when two adjacent helical grooves of the plurality of helical grooves is open to the discharge port as a result of rotation of the screw rotor, with one of the two adjacent helical grooves being open in the first port and the other of the two adjacent helical grooves being open in the second port.
摘要翻译： 螺杆式压缩机包括具有多个螺旋槽的螺杆转子，容纳螺杆转子的壳体和闸转子。 壳体包括在壳体的内周面上的排出口。 门转子具有与螺杆转子的螺旋槽啮合的门，以压缩压缩室中的气体，以在压缩之后从排出口排出气体。 压缩室由螺旋槽，壳体和闸门限定。 当螺旋转子旋转时，多个螺旋槽的两个相邻的螺旋槽对排出口开放，排出口被分成第一端口和第二端口，两个相邻的螺旋槽中的一个是敞开的 在第一端口中，两个相邻的螺旋槽中的另一个在第二端口中打开。
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公开(公告)号：US08858192B2
公开(公告)日：2014-10-14
申请号：US13256572
申请日：2010-03-15
CPC分类号： F04C18/16 , F04C18/52 , F04C29/0014 , F04C29/021 , F04C29/028
摘要： A screw compressor includes a casing, a screw rotor, an oil sump containing lubricant oil, a lubrication passage and a flow rate controller. The screw rotor is inserted in a cylinder portion of the casing to form a fluid chamber. The screw rotor rotates to suck a fluid into the fluid chamber for compression. The lubrication passage supplies the lubricant oil in the oil sump to the fluid chamber due to a difference in pressure between the oil sump and the fluid chamber. The flow rate controller reduces a flow rate of the lubricant oil supplied to the fluid chamber in accordance with a decrease in operating capacity of the screw compressor.
摘要翻译： 螺杆式压缩机包括壳体，螺杆转子，含有润滑油的油底壳，润滑通路和流量控制器。 螺杆转子插入壳体的圆筒部分中以形成流体室。 螺杆转子旋转以将流体吸入流体室以进行压缩。 由于油底壳和流体室之间的压力差，润滑通道将油底壳中的润滑油供应到流体室。 流量控制器根据螺杆式压缩机的运行能力的降低而降低供应到流体室的润滑油的流量。
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8.发明授权Screw compressor with adjacent helical grooves selectively opening to first and second ports 有权具有选择性地打开到第一和第二端口的相邻螺旋槽的螺杆式压缩机公开(公告)号：US08845311B2
公开(公告)日：2014-09-30
申请号：US12810951
申请日：2008-12-26
IPC分类号： F01C1/08 , F04C18/52 , F01C17/02 , F04C23/00 , F04C29/12 , F04C29/00 , F04C18/16 , F04C27/00
CPC分类号： F04C18/52 , F01C17/02 , F04C18/16 , F04C23/001 , F04C27/004 , F04C27/007 , F04C29/0078 , F04C29/124 , F04C2240/30 , F04C2240/52 , F04C2240/603 , F04C2270/16 , F04C2270/17 , F04C2270/58
摘要： A screw compressor includes a screw rotor having a plurality of helical grooves, a casing containing the screw rotor and a gate rotor. The casing includes a discharge port on an inner peripheral surface of the casing. The gate rotor has gates meshing with the helical grooves of the screw rotor to compress gas in compression chambers to discharge the gas from the discharge port after being compressed. The compression chambers are defined by the helical grooves, the casing, and the gates. The discharge port is divided into a first port and a second port when two adjacent helical grooves of the plurality of helical grooves is open to the discharge port as a result of rotation of the screw rotor, with one of the two adjacent helical grooves being open in the first port and the other of the two adjacent helical grooves being open in the second port.
摘要翻译： 螺杆式压缩机包括具有多个螺旋槽的螺杆转子，容纳螺杆转子的壳体和闸转子。 壳体包括在壳体的内周面上的排出口。 门转子具有与螺杆转子的螺旋槽啮合的门，以压缩压缩室中的气体，以在压缩之后从排出口排出气体。 压缩室由螺旋槽，壳体和闸门限定。 当螺旋转子旋转时，多个螺旋槽的两个相邻的螺旋槽对排出口开放，排出口被分成第一端口和第二端口，两个相邻的螺旋槽中的一个是敞开的 在第一端口中，两个相邻的螺旋槽中的另一个在第二端口中打开。
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公开(公告)号：US08794027B2
公开(公告)日：2014-08-05
申请号：US12663908
申请日：2008-06-11
申请人： Nozomi Gotou , Harunori Miyamura , Hideyuki Gotou
发明人： Nozomi Gotou , Harunori Miyamura , Hideyuki Gotou
摘要： A compressor includes a casing, a screw rotor, a slide member with at least one economizer port, and a control unit controlling a position of the slide member along the axis of the screw rotor to position the at least one economizer port based on the rotating speed of the screw rotor to advance the timing of opening of the at least one economizer port. The controller controls the position of the slide member along the axis such that the slide member moves upstream toward a suction side of the compressor when the rotating speed of the screw rotor increases, and downstream toward a discharge side of the compressor when the rotating speed of the screw rotor decreases. A refrigerating apparatus includes the compressor, a condenser, a heat exchanger, an expansion unit, and an evaporator, sequentially connected, and has an economizer line.
摘要翻译： 压缩机包括壳体，螺杆转子，具有至少一个节能器端口的滑动构件和控制单元，其控制滑动构件沿着螺杆转子的轴线的位置，以基于旋转的位置来定位至少一个节能器端口 螺杆转子的速度以促进至少一个节能器口的打开定时。 控制器沿着轴线控制滑动构件的位置，使得当螺杆转子的转速增加时，滑动构件向压缩机的吸入侧向上游移动，并且当压缩机的旋转速度为 螺杆转子减小。 制冷装置包括压缩机，冷凝器，热交换器，膨胀单元和蒸发器，依次连接，并具有节能器管路。
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公开(公告)号：US08366405B2
公开(公告)日：2013-02-05
申请号：US12808300
申请日：2008-12-17
IPC分类号： F04B49/00
CPC分类号： F04C28/26 , F04C18/16 , F04C18/52 , F04C28/12 , F04C28/28 , F04C29/124 , F04C2230/91 , F04C2270/17 , F04C2270/58
摘要： A screw compressor includes a casing, a screw rotor disposed in a cylinder portion of the casing to define a compression chamber, and a capacity control slide valve. Fluid sucked into the compression chamber is compressed by rotation of the screw rotor. The slide valve is slidable along a rotation axis of the screw rotor and is opposed to an outer circumferential surface of the screw rotor. The slide valve includes a dynamic pressure generator formed on an opposed surface of the slide valve that is opposed to the screw rotor to generate a dynamic pressure using fluid in contact with the opposed surface of the slide valve. The slide valve is configured so that the dynamic pressure generated by the dynamic pressure generator avoids contact between the slide valve and the screw rotor.
摘要翻译： 螺杆式压缩机包括壳体，设置在壳体的气缸部分中以限定压缩室的螺杆转子和容量控制滑阀。 吸入压缩室的流体通过螺杆转子的旋转被压缩。 滑阀可沿着螺杆转子的旋转轴线滑动并且与螺杆转子的外圆周表面相对。 滑动阀包括形成在滑阀的与螺杆转子相对的相对表面上以产生使用与滑阀的相对表面接触的流体的动态压力的动压发生器。 滑阀被构造成使得由动压发生器产生的动压力避免了滑阀和螺杆转子之间的接触。
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