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1. 发明授权

US4131400A Hydraulic rotary screw machine with axial balancing piston 失效
标题翻译：液压旋转螺杆机带轴向平衡活塞
公开(公告)号：US4131400A
公开(公告)日：1978-12-26
申请号：US788968
申请日：1977-04-19
申请人： Lars Segerstrom
发明人： Lars Segerstrom
IPC分类号： F04C2/16 , F01C21/02 , F03C2/08 , F04C15/00 , F04C17/12 , F04C29/00
CPC分类号： F01C21/02 , F04C15/0042
摘要： A hydraulic screw machine having a housing employing a screw assembly with a drive screw and cooperating idler screws. The drive screw is sealably connected to a shaft extending beyond the housing on the high pressure side and has associated therewith a balance piston for acting on the screw drive. The drive screw is journalled to the shaft via bearings in the form of a self-adjusting plate surrounding the shaft. The plate is disposed between abutment surfaces connected to the housing for limiting its axial movement. A leakage channel between the piston and the housing is connected to the high pressure side of the machine and is determined by the balance piston.
摘要翻译：一种液压螺杆机，其具有采用具有驱动螺杆和配合惰轮螺钉的螺钉组件的壳体。驱动螺杆可密封地连接到在高压侧延伸超过壳体的轴，并且与其相关联地具有用于作用在螺旋驱动器上的平衡活塞。驱动螺钉通过围绕轴的自调节板形式的轴承安装在轴上。板被设置在连接到壳体的邻接表面之间以限制其轴向运动。活塞和壳体之间的泄漏通道连接到机器的高压侧，并由平衡活塞决定。

2. 发明授权

US3947163A Screw rotor machine with axially balanced hollow thread rotor 失效
标题翻译：螺旋转子机与轴向平衡中空螺纹转子
公开(公告)号：US3947163A
公开(公告)日：1976-03-30
申请号：US489942
申请日：1974-07-18
申请人： Hans Kristoffer Olofsson
发明人： Hans Kristoffer Olofsson
IPC分类号： F04C18/107 , F01C1/107 , F01C1/16 , F03C2/08 , F04C2/107 , F04C17/12
CPC分类号： F01C1/107
摘要： A screw rotor machine is disclosed in which a screw thread rotor enclosing a screw cam rotor is axially balanced through having an area enclosed by a seal between the screw thread rotor and the housing which area stands in a predetermined relation to the hole area of the screw thread rotor.

3. 发明授权

US3932073A Screw rotor machine with spring and fluid biased balancing pistons 失效
标题翻译：螺旋转子机带弹簧和流体偏压平衡活塞
公开(公告)号：US3932073A
公开(公告)日：1976-01-13
申请号：US484983
申请日：1974-07-01
申请人： Hjalmar Schibbye , Arnold Englund
发明人： Hjalmar Schibbye , Arnold Englund
IPC分类号： F01C1/16 , F01C21/00 , F04C18/16 , F01C21/04 , F04C17/12
CPC分类号： F01C1/16 , F01C21/003
摘要： A screw rotor machine for an elastic working fluid in which the rotors are biassed towards the high pressure end wall by means of balancing pistons and interposed bearings.
摘要翻译：一种用于弹性工作流体的螺旋转子机，其中转子通过平衡活塞和插入的轴承朝向高压端壁偏压。

4. 发明授权

US3467300A Two-stage compressor 失效
标题翻译：两级压缩机
公开(公告)号：US3467300A
公开(公告)日：1969-09-16
申请号：US3467300D
申请日：1968-01-29
申请人： SVENSKA ROTOR MASKINER AB
发明人： SCHIBBYE LAURITZ BENEDICTUS
IPC分类号： F04C18/16 , F04C23/00 , F04C29/00 , F04C17/12
CPC分类号： F04C18/16 , F04C23/003 , F04C29/0007 , F04C29/0021

5. 发明授权

US3424373A Variable lead compressor 失效
标题翻译：可变引线压缩机
公开(公告)号：US3424373A
公开(公告)日：1969-01-28
申请号：US3424373D
申请日：1966-10-28
申请人： JOHN W GARDNER
发明人： GARDNER JOHN W
IPC分类号： F04C18/16 , F04C17/04 , F04C17/12
CPC分类号： F04C18/16

6. 发明授权

US3938915A Screw rotor machine with hollow thread rotor enclosing a screw cam rotor 失效
标题翻译：螺旋转子机用空心螺纹转子封闭螺旋凸轮转子
公开(公告)号：US3938915A
公开(公告)日：1976-02-17
申请号：US489940
申请日：1974-07-18
申请人： Hans Kristoffer Olofsson
发明人： Hans Kristoffer Olofsson
IPC分类号： F04C18/107 , F01C1/10 , F01C1/16 , F04C2/107 , F04C17/12
CPC分类号： F01C1/101
摘要： A screw rotor machine is disclosed which comprises a screw cam rotor provided with gudgeons and a screw thread rotor enclosing the screw cam rotor. The screw cam rotor is made as single-thread-screw which is generated in relation to an inner base cylinder. The profile of the single-thread-screw is such that it in each cross section encloses both the inner base cylinder and the cylindrical extensions of the gudgeons. Furthermore the single-thread-screw comprises two parts having different lead angles.
摘要翻译：公开了一种螺杆转子机，其包括设有舵杆的螺旋凸轮转子和包围螺旋凸轮转子的螺旋转子。螺旋凸轮转子由相对于内底筒产生的单螺纹螺杆制成。单螺纹螺杆的轮廓使得其在每个横截面中包围内基座圆筒和舵杆的圆柱形延伸部。此外，单螺纹螺杆包括具有不同引导角的两部分。

7. 发明授权

US3902827A Screw compressor 失效
标题翻译：螺杆压缩机
公开(公告)号：US3902827A
公开(公告)日：1975-09-02
申请号：US48714574
申请日：1974-07-10
申请人： SVENSKA ROTOR MASKINER AB
发明人： SCHIBBYE LAURITZ BENEDICTUS
IPC分类号： F01C1/16 , F04C18/16 , F01C21/04 , F04C17/12
CPC分类号： F04C18/16
摘要： A screw rotor compressor in which the high pressure ends of the rotors are provided with annular sealing edges cooperating with the high pressure end wall of the working space to provide central sealed chambers around the rotor shafts, which chambers are in communication with the low pressure side of the compressor.
摘要翻译：一种螺杆转子压缩机，其中转子的高压端部设置有与工作空间的高压端壁配合的环形密封边缘，以提供围绕转子轴的中心密封室，这些室与低压侧连通的压缩机。

8. 发明授权

US3558248A Screw type refrigerant compressor 失效
标题翻译：螺杆式制冷压缩机
公开(公告)号：US3558248A
公开(公告)日：1971-01-26
申请号：US3558248D
申请日：1968-01-10
申请人： LENNOX IND INC
发明人： PARKER SIDNEY A
IPC分类号： F04C18/16 , F25B1/047 , F04C27/02 , F04C17/12 , F04C29/02
CPC分类号： F04C29/128 , F04C18/16 , F25B1/047
摘要： A REFRIGERANT SCREW COMPRESSOR INCORPORATING VALVE MEANS CONSTRUCTED AND ARRANGED TO ROTATE WITH THE SCREWS TOT PROVIDE A VARIABLE COMPRESSION RATIO RESPONSIVE TO CONDITIONS OF THE REFRIGERATION SYSTEM IN WHICH THE COMPRESSOR IS USED. THE SCREWS MAY BE PROVIDED WITH A PRESELECTED VARIABLE SKEW FOR MAINTAINING ADEQUATE FLUID FLOW THROUGH THE VALVE MEANS WITH A MINIMUM PRESSURE DROP. LUBRICANT IS SUPPLIED TO THE WORKING SPACE WITHIN WHICH THE SCREWS OPERATE FROM A SUMP WITHIN THE COMPRESSOR CASING BY PUMP MEANS WITHIN THE SCREWS FOR INCREASING SCREW COMPRESSION PERFORMANCE.

9. 发明授权

US3549280A Screw machine 失效
标题翻译：螺丝机
公开(公告)号：US3549280A
公开(公告)日：1970-12-22
申请号：US3549280D
申请日：1969-01-02
申请人： GUTEHOFFNUNGSHUETTE STERKRADE
发明人： LINNEKEN HANS
IPC分类号： F04C2/16 , F04C18/16 , F04C28/12 , F04C28/26 , F04C29/10 , F04C17/12
CPC分类号： F04C28/12

10. 发明授权

US3535057A Screw compressor 失效
公开(公告)号：US3535057A
公开(公告)日：1970-10-20
申请号：US3535057D
申请日：1968-09-06
申请人： ESPER KODRA
发明人： KODRA ESPER
IPC分类号： F04B39/16 , F04C18/08 , F16J15/38 , F04C17/12 , F04C29/04
CPC分类号： F16J15/38 , F04B39/16 , F04C18/084 , F04C18/16

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