Patent ID: 11953126
Assignee: PRINCETEL, INC.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 3:
4. A fluid rotary joint assembly for high speed applications, comprising:
at least two single stage fluid rotary joints forming a multiple single stage fluid rotary joint assembly, each of the single stage fluid rotary joints connected in series to each other;
at least one gear assembly connected to at least one of the at least two single stage fluid rotary joints, each gear assembly rotatable around a first common axis;
each of the single stage fluid rotary joints further having:
a first port on a first part, and a second port on a second part;
multiple seals between the first and second parts;
the first port of the first part being rotatable relative to the second port of the second part around a second common axis;
the at least one gear assembly comprises multiple gear assemblies; and
wherein each of the multiple gear assemblies is a dual gear assembly, and the second part of a first single stage fluid rotary joint in a first stage being mechanically connected to the first part of a second single stage fluid rotary joint in a second stage, the second part of the second single stage fluid rotary joint in the second stage being mechanically connected to the first part of a next single stage fluid rotary joint in a next stage, and the second port of the first stage being connected with the first port of the second stage by a fluid communication channel and the second port of the second stage being connected with the first port of a next stage by another fluid communication channel; for an n-stage fluid rotary joint assembly, there will be n single stage fluid rotary joints and the number of dual-gear assemblies will be n−1, the second part of a last stage being stationary, and all other second parts being rotatable.