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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：US08562319B2
公开(公告)日：2013-10-22
申请号：US13378259
申请日：2010-06-04
CPC分类号： F04C18/52 , F04C28/12 , F04C28/26 , F04C2270/17
摘要： A screw compressor includes a screw rotor, a casing, a low pressure space, a bypass passage and a slide valve. The screw rotor is provided with a plurality of helical grooves forming fluid chambers. The casing includes a cylinder portion with the screw rotor disposed in the cylinder portion. The low pressure space is formed in the casing to receive a flow of uncompressed, low pressure fluid. The bypass passage is opened in an inner peripheral surface of the cylinder portion to communicate the fluid chamber with the low pressure space. The slide valve is slideable in an axial direction of the screw rotor to change an area of an opening of the bypass passage in the inner peripheral surface of the cylinder portion. An end face of the slide valve facing the bypass passage is inclined along an extending direction of the helical grooves.
摘要翻译： 螺杆式压缩机包括螺杆转子，壳体，低压空间，旁通通路和滑阀。 螺杆转子设置有形成流体室的多个螺旋槽。 壳体包括具有设置在气缸部分中的螺杆转子的气缸部分。 在壳体中形成低压空间以接收未压缩的低压流体流。 旁通通道在气缸部分的内周表面中打开，以将流体室与低压空间连通。 滑阀能够在螺杆转子的轴向上滑动，以改变缸部的内周面中的旁通通路的开口面积。 面向旁路通道的滑阀的端面沿螺旋槽的延伸方向倾斜。
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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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公开(公告)号：US20120100028A1
公开(公告)日：2012-04-26
申请号：US13378259
申请日：2010-06-04
IPC分类号： F01C1/16
CPC分类号： F04C18/52 , F04C28/12 , F04C28/26 , F04C2270/17
摘要： A screw compressor includes a screw rotor, a casing, a low pressure space, a bypass passage and a slide valve. The screw rotor is provided with a plurality of helical grooves forming fluid chambers. The casing includes a cylinder portion with the screw rotor disposed in the cylinder portion. The low pressure space is formed in the casing to receive a flow of uncompressed, low pressure fluid. The bypass passage is opened in an inner peripheral surface of the cylinder portion to communicate the fluid chamber with the low pressure space. The slide valve is slideable in an axial direction of the screw rotor to chance an area of an opening of the brass passage inner peripheral surface of the cylinder portion. An end face of the slide valve facing the by bypass passage is inclined along an extending direction of the helical grooves.
摘要翻译： 螺杆式压缩机包括螺杆转子，壳体，低压空间，旁通通路和滑阀。 螺杆转子设置有形成流体室的多个螺旋槽。 壳体包括具有设置在气缸部分中的螺杆转子的气缸部分。 在壳体中形成低压空间以接收未压缩的低压流体流。 旁通通道在气缸部分的内周表面中打开，以将流体室与低压空间连通。 滑阀可以在螺杆转子的轴向上滑动，以有助于圆筒部的黄铜通道内周面的开口面积。 面向旁路通道的滑阀的端面沿螺旋槽的延伸方向倾斜。
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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：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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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：US20100329918A1
公开(公告)日：2010-12-30
申请号：US12864087
申请日：2009-01-23
CPC分类号： F04C29/042 , F04C18/16 , F04C18/52
摘要： A screw compressor includes a screw rotor, a gate rotor and an injection mechanism. The screw rotor is provided with multiple helical grooves. The gate rotor is provided with multiple gates meshing with the helical grooves to form at least one compression chamber between at least one of the helical grooves and at least one of the gates. The compression chamber is configured and arranged such that refrigerant taken-in from a starting-end side of the helical groove is compressed and discharged from a dead-end side of the helical groove. The injection mechanism is configured and arranged to inject oil or refrigerant from a discharge hole of the injection mechanism into the compression chamber such that rotational torque is imparted in a direction in which the screw rotor is rotated at a time of compression.
摘要翻译： 螺杆式压缩机包括螺杆转子，闸转子和注入机构。 螺杆转子设有多个螺旋槽。 门转子设置有与螺旋槽啮合的多个门，以在至少一个螺旋槽和至少一个门之间形成至少一个压缩室。 压缩室被构造和布置成使得从螺旋槽的起始侧接收的制冷剂被压缩并从螺旋槽的死端侧排出。 喷射机构被构造和布置成将来自注射机构的排出孔的油或制冷剂喷射到压缩室中，使得在压缩时螺杆转子旋转的方向上施加旋转扭矩。
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