Specifications

The Patent Office Journal 17/12/2010
4656
(12) PATENT APPLICATION PUBLICATION (21) Application No.871/KOL/2009 A
(19) INDIA
(22) Date of filing of Application :16/06/2009 (43) Publication Date : 17/12/2010
(54) Title of the invention : AN IMPROVED SYSTEM OF SERVOMOTOR MOUNTING AND GUIDE APPARATUS LOCKING
FOR A LARGE KAPLAN TURBINE
(51) International classification :F03B3/00
(31) Priority Document No :NA
(32) Priority Date :NA
(33) Name of priority country :NA
(86) International Application No
Filing Date
:NA
:NA
(87) International Publication No : NA
(61) Patent of Addition to Application Number
Filing Date
:NA
:NA
(62) Divisional to Application Number
Filing Date
:NA
:NA
(71)Name of Applicant :
1)BHARAT HEAVY ELECTRICALS LIMITED
Address of Applicant :REGIONAL OPERATIONS
DIVISION (ROD), PLOT NO: 9/1, DJBLOCK 3RD FLOOR,
KARUNAMOYEE, SALT LAKE CITY, KOLKATA-700091,
HAVING ITS REGISTERED OFFICE AT BHEL HOUSE, SIRI
FORT, NEW DELHI-110049 West Bengal India
(72)Name of Inventor :
1)KARRI PRASAD
2)HAKIM SINGH MAHORE
3)SHIVENDRA KUMAR
4)OMESHWAR DAHEEKAR
(57) Abstract :
An improved system of servomotor mounting and guide apparatus locking for a large Kaplan turbine consists of four reduced size
servomotors (9, 10, 11, 12) and mounting them on a stay ring (16) when the said servomotors are connected to a regulating ring (3)
through piston rod (17) adapting clevis mounting arrangement (15). Four brackets (1) each holding a lock pin (4) is mounted suitably
on inner top cover (2). The lock pins (4) are guided by the guide cylinder (5) to lock at open and closed position of servomotors when
the load of the bracket (1) is transferred to the inner top cover (2) by dowels (6) and rotation of lock pin (4) are prevented by guide
bars (18) which bears against machined flat on lock pin. Two locks each are provided to lock the servomotors (9, 10, 11, 12) at open
and closed positions. The brackets (1) are fixed to inner top cover (2) by studs and nuts (7, 8) with dowels (6)0.
No. of Pages : 19 No. of Claims : 3