Rotary union having pressure sleeve
AssigneeDeublin Company
InventorAnton A. Petrou
Life of this patent
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Abstract
A rotary union includes a non-rotating component forming a bore, and a non-rotating seal carrier slidably disposed in the bore. A pressure sleeve is slidably disposed in the bore between the non-rotating component and the non-rotating seal carrier. A non-rotating seal member is disposed on the non-rotating seal carrier, and a rotating seal carrier has a rotating seal member disposed thereon. Wherein the rotating seal member is disposed in opposed relation to the non-rotating seal member such that a sliding mechanical face seal is formed between the non-rotating and rotating seal members when the non-rotating seal carrier slides towards the rotating seal carrier in the presence of fluid pressure.
Claims14
A rotary union, comprising:
- a non-rotating component forming a bore;
- a pressure sleeve slidably disposed in the bore;
- a non-rotating seal carrier slidably disposed within a portion of the pressure sleeve, wherein the pressure sleeve is slidably disposed between both the non-rotating component and the non-rotating seal carrier;
- a non-rotating seal member disposed on the non-rotating seal carrier;
- and
- a rotating seal carrier having a rotating seal member disposed thereon, wherein the rotating seal member is disposed in opposed relation to the non-rotating seal member such that a sliding mechanical face seal is formed between the non-rotating and rotating seal members when the non-rotating seal carrier slides towards the rotating seal carrier in the presence of fluid pressure.
A multi-media rotary union, comprising:
- a housing having a cylindrical bore extending through a body of the housing, the cylindrical bore being substantially straight;
- a shaft rotatably supported within the cylindrical bore of the housing;
- a carriage forming a bore and radial passages, the carriage disposed in sealed relation within the cylindrical bore of the housing;
- a non-rotating seal carrier slidably disposed in the bore;
- a pressure sleeve slidably disposed in the bore between the carriage and the non-rotating seal carrier;
- a non-rotating seal member disposed on the non-rotating seal carrier;
- and
- a rotating seal carrier having a rotating seal member disposed thereon and additional radial passages, the non-rotating seal carrier being engaged to rotate with the shaft;
- wherein the rotating seal member is disposed in opposed relation to the non-rotating seal member such that a sliding mechanical face seal is formed between the non-rotating and rotating seal members when the non-rotating seal carrier slides towards the rotating seal carrier in the presence of fluid pressure to provide a sealed fluid passage extending between the radial passages and the additional radial passages.
Dependencies are inferred from the claim text.