Patent ID: 7270024
Filing Date: 2007-09-18
Classification: F16C,Y10T

Abstract:
1. A rotary shaft hermetic sealing device for providing dynamically hermetic sealing for a rotary shaft and to fully transfer the torque under various rpm's comprising: means for holding a coupler drive bearing to provide rotational freedom to a coupler drive shaft of a center shaft coupler; means for holding a coupler load bearing to provide rotational freedom to a coupler load shaft of said center shaft coupler; means for transmitting motion between a drive crank shaft and said center shaft coupler; means for transmitting motion between said center shaft coupler and a load crank shaft; means for holding rubber seals to provide hermetic sealing, rigidly connected to said means for transmitting motion between said center shaft coupler and said load crank shaft, and rigidly connected to said means for transmitting motion between said drive crank shaft and said center shaft coupler; means for providing a solid, common base for said drive crank shaft and said load crank shaft; means for sealing said drive crank shaft from fluid leakage, sealingly mounted to said means for holding rubber seals to provide hermetic sealing; means for sealing said load crank shaft from fluid leakage, sealingly mounted to said means for holding rubber seals to provide hermetic sealing; means for providing solid support base for said drive crank shaft during operation, sealingly mounted to said means for sealing said drive crank shaft from fluid leakage; means for providing solid support base for said load crank shaft during operation, sealingly mounted to said means for sealing said load crank shaft from fluid leakage; means for providing rotational innertia balance due to a eccentric bore on said drive crank shaft, adjustably mounted to said means for holding said coupler drive bearing to provide rotational freedom to said coupler drive shaft of said center shaft coupler; means for providing rotational innertia balance due to a eccentric bore on said load crank shaft, adjustably mounted to said means for holding said coupler load bearing to provide rotational freedom to said coupler load shaft of said center shaft coupler; means for adjusting the total balance weight to reduce vibration, removably mounted to said means for providing rotational innertia balance due to said eccentric bore on said drive crank shaft; and means for adjusting the total balance weight to reduce vibration, removably mounted to said means for providing rotational innertia balance due to said eccentric bore on said load crank shaft.