公开(公告)号：US2851019A

公开(公告)日：1958-09-09

申请号：US59491056

申请日：1956-06-29

Applicant: GEN MOTORS CORP

Inventor： FLEMING JAMES D ,  REINHART HENRY F

IPC: F02B3/06 ,  F02B23/06

CPC classification number: F02B23/0627 ,  F02B3/06 ,  F02B23/0621 ,  F02B23/0624 ,  F02B23/0648 ,  F02B23/0696 ,  F02B2275/14 ,  Y02T10/125

公开(公告)号：US3077732A

公开(公告)日：1963-02-19

申请号：US7514460

申请日：1960-12-12

Applicant: GEN MOTORS CORP

Inventor： REINHART HENRY F ,  SMITH WARREN H

IPC: F02G1/043

CPC classification number: F02G1/043 ,  F02G2243/02 ,  F02G2270/425 ,  Y10T74/18208

公开(公告)号：US3697202A

公开(公告)日：1972-10-10

申请号：US3697202D

申请日：1971-04-07

Applicant: GEN MOTORS CORP

Inventor： REINHART HENRY F ,  DEGA ROBERT L

IPC: F01C19/10 ,  F01C19/00 ,  F03C3/00 ,  F04C27/00

CPC classification number: F01C19/10

Abstract: A side seal for a rotary combustion engine includes an elastomeric biasing ring and an L-shaped sealing annulus which has an axial support sleeve loosely retained within a groove formed in the engine rotor and a radial sealing flange engaging the sidewalls of the engine working chamber. The biasing ring is compressively retained within the groove and serves in conjunction with fluid pressure in the engine crankcase to bias the sealing flange into operative contact with the sidewalls. A spiral groove formed in the sealing flange functions upon planetary motion of the rotor to generate hydrodynamic forces which oppose fluid leakage toward the working chamber. The spiral groove is defined by a multiple turn buttress thread which additionally functions as a helical wiping blade for sweeping the sidewalls during the radial component of rotor movement to mechanically direct the fluid toward the crankcase.

Abstract translation: 用于旋转燃烧发动机的侧密封件包括弹性体偏置环和L形密封环，其具有松散地保持在形成在发动机转子中的凹槽内的轴向支撑套筒和与发动机工作室的侧壁接合的径向密封凸缘。 偏置环压缩地保持在凹槽内并与发动机曲轴箱中的流体压力一起使用，以将密封凸缘偏置成与侧壁有效接触。 形成在密封凸缘中的螺旋槽在转子的行星运动上起作用，以产生反向流向工作室的流体的流体动力。 螺旋槽由多转支撑螺纹限定，其另外用作螺旋擦拭刀片，用于在转子运动的径向分量期间扫掠侧壁以将流体机械地引导到曲轴箱。