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Two part axial drive device each having self contained bearing sealing means

  • US 5,044,809 A
  • Filed: 03/29/1990
  • Issued: 09/03/1991
  • Est. Priority Date: 03/29/1990
  • Status: Expired due to Fees
First Claim
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1. An improved detachable cartridge assembly having a body for a shaft supported at one end by an anti-friction bearing for rotation about its axis within a housing bore of said cartridge to provide means for producing rotational drive power along said shaft, the improvement comprising:

  • a. a shaft having a first and second end disposed axially within said cartridge having a rotor key affixed at said first end and a drive key affixed at said second end, said shaft being axially supported near said first end by an annular spacer which is linked thereto and by said anti-friction bearing near said second end of said shaft;

    b a first section of an annular stationary outer housing gland and an inner rotary gland disposed in coaxial fixed spaced apart relationship with said outer gland and axially disposed adjacent and linked to said spacer and coaxial with said shaft, said spaced apart relationship between said outer and inner glands forming a labyrinth path along said shaft axis within said cartridge assembly for creating a tortuous flow passageway to liquid flow therethrough;

    c. said inner rotary gland and an inner annular static gland being disposed in fixed axial spaced apart relationship about said shaft, a second section of said stationary gland being coaxially and fixedly disposed with said inner static gland, said coaxially disposed inner static gland and said second section of said outer stationary gland extending axially and terminating near said anti-friction bearing;

    d. a pressure sealing arrangement disposed between said spaced apart adjacent ends of said axially disposed inner rotary and static glands and coaxial with said shaft;

    e. a static oil gland seal ring disposed coaxially between said shaft and inner static gland nearest to said second end of said shaft to prevent fluid leakage therebetween within said cartridge; and

    f. a plurality of axial spaced apart openings in said body of said cartridge for receiving a plurality of bolts for connecting or disconnecting said cartridge and an associated apparatus.

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