公开(公告)号：WO2003036093A1

公开(公告)日：2003-05-01

申请号：PCT/US2002/034070

申请日：2002-10-22

Applicant: INGERSOLL-RAND COMPANY

Inventor： SOWARDS, Brian, David

IPC: F04C18/16

CPC classification number: F04C29/0021 ,  F04C18/16

Abstract: An air compressor assembly of the rotary screw type. The air compressor assembly comprises a housing (20) having an inlet end (22) and a discharge end (24). An internal working chamber (26) extends within the housing and terminates in a discharge end face(27) at the discharge end of the housing. At least one rotor (40) is mounted for rotation and axial movement within the working chamber (26). The rotor has a discharge end surface (41) having a step defined thereon. A thrust piston (46) extends from the rotor and is positioned within a thrust piston chamber (48). A pressure source is associated with the thrust piston chamber (48) and is controllable between a high pressure condition and a reduced pressure condition to control the position of the rotor (40) relative to the discharge end face (27). A method of mounting a rotor with a desired end clearance is also provided.

Abstract translation: 旋转螺杆式空气压缩机组件。 空气压缩机组件包括具有入口端（22）和排出端（24）的壳体（20）。 内部工作室（26）在壳体内延伸并终止在壳体排放端处的排出端面（27）中。 安装至少一个转子（40）用于在工作室（26）内旋转和轴向运动。 转子具有限定在其上的台阶的排出端面（41）。 推力活塞（46）从转子延伸并定位在推力活塞室（48）内。 压力源与推力活塞室（48）相关联并且可在高压条件和减压条件之间控制，以控制转子（40）相对于排出端面（27）的位置。 还提供了一种安装具有期望的端部间隙的转子的方法。

公开(公告)号：EP1438509B1

公开(公告)日：2007-03-07

申请号：EP02784261.6

申请日：2002-10-22

Applicant: INGERSOLL-RAND COMPANY

Inventor： SOWARDS, Brian, David

IPC: F04C18/16 ,  F04C29/00

CPC classification number: F04C29/0021 ,  F04C18/16

Abstract: An air compressor assembly of the rotary screw type. The air compressor assembly comprises a housing (20) having an inlet end (22) and a discharge end (24). An internal working chamber (26) extends within the housing and terminates in a discharge end face(27) at the discharge end of the housing. At least one rotor (40) is mounted for rotation and axial movement within the working chamber (26). The rotor has a discharge end surface (41) having a step defined thereon. A thrust piston (46) extends from the rotor and is positioned within a thrust piston chamber (48). A pressure source is associated with the thrust piston chamber (48) and is controllable between a high pressure condition and a reduced pressure condition to control the position of the rotor (40) relative to the discharge end face (27). A method of mounting a rotor with a desired end clearance is also provided.

公开(公告)号：EP1438509A1

公开(公告)日：2004-07-21

申请号：EP02784261.6

申请日：2002-10-22

Applicant: Ingersoll-Rand Company

Inventor： SOWARDS, Brian, David

IPC: F04C18/16 ,  F04C29/00

CPC classification number: F04C29/0021 ,  F04C18/16

Abstract: An air compressor assembly of the rotary screw type. The air compressor assembly comprises a housing (20) having an inlet end (22) and a discharge end (24). An internal working chamber (26) extends within the housing and terminates in a discharge end face(27) at the discharge end of the housing. At least one rotor (40) is mounted for rotation and axial movement within the working chamber (26). The rotor has a discharge end surface (41) having a step defined thereon. A thrust piston (46) extends from the rotor and is positioned within a thrust piston chamber (48). A pressure source is associated with the thrust piston chamber (48) and is controllable between a high pressure condition and a reduced pressure condition to control the position of the rotor (40) relative to the discharge end face (27). A method of mounting a rotor with a desired end clearance is also provided.