Water distributor

• US 4,375,823 A
• Filed: 03/10/1981
• Issued: 03/08/1983
• Est. Priority Date: 03/10/1980
• Status: Expired due to Term

• Current Assignee: BBC Brown Boveri & Company Limited (ABB Limited)
• Original Assignee: BBC Brown Boveri & Company Limited (ABB Limited)
• Inventors: Zerlik, Willibald
• Primary Examiner(s): Capossela, Ronald C.
• Application Number:
  US06/242,273
• Time in Patent Office: 728 Days
• Field of Search: 62/505, 62/331, 310/52, 310/54, 310/62, 310/59, 137/340, 137/580
• US Class Current: 137/340
• CPC Class Codes: F16L 41/023 Y- pieces F16L41/025, F16L41/026, F16L41/028 take precedence
• CPC Class Codes: H02K 3/22 consisting of hollow conductors
• CPC Class Codes: H02K 9/00 Arrangements for cooling or ventilating channels or ducts in parts of the magnetic circuit H02K1/20, H02K1/32; channels or ducts in or between conductors H02K3/22, H02K3/24
• CPC Class Codes: Y10T 137/6579 Circulating fluid in heat exchange relationship
• CPC Class Codes: Y10T 137/86268 With running joint between movable parts of system

Abstract

In the coil end of a rotor of an electrical machine, the terminal ends emerging from different grooves and resting on different cylindrical surfaces must be electrically connected with each other and hydraulically with a water chamber. This is accomplished by distributors which include a connecting stud and two shanks which extend therefrom. The shanks have bores which extend at an acute angle into a bore on the connecting stud. This causes only very small flow resistance. The freedom that is gained in terms of choosing the desired shank lengths, and the freedom to choose the interval between the free shank endings, gives rise to a number of production advantages. Furthermore, the quality tests for checking the junction of the distributor pieces with the terminal endings of the windings are simplified.

Claims

1. A distributor for the electric and hydraulic junction between the individual conductor terminals which emerge from grooves at the coil end of the rotor of an electrical machine and the pipe conduit which serves as the hydraulic inlet and/or outlet, each of said conductor terminals extending along one of two radially spaced cylindrical surfaces, said distributor comprising:

a connecting stud having a first bore therein;

a first shank connected to said stud at one end thereof and having a second bore therethrough, said second bore being in alignment with said first bore at said one end, said first shank being curved in one direction and having another end positioned on one of said cylindrical surfaces and connected to one of said conductor terminals; and

a second shank connected to said stud at one end thereof and having a third bore therethrough, said second shank and third bore forming an acute angle with said first shank adjacent said one end thereof, said second shank being curved in a direction opposite said one direction and having another end positioned on the other of said cylindrical surfaces and connected to another of said conductor terminals.

2. The distributor of claim 1, wherein said first and second bores are located on the radially inner one of said two radially spaced cylindrical surfaces and said third bore is located partially on the other of said cylindrical surfaces.

3. The distributor of claim 1 wherein the length of said shanks is about four times the length of said stud and the distance between said other ends of said shanks is substantially equal to the length of said shanks.