Specifications

The Patent Office Journal 17/12/2010
4506
(12) PATENT APPLICATION PUBLICATION (21) Application No.99/MUM/2009 A
(19) INDIA
(22) Date of filing of Application :15/01/2009 (43) Publication Date : 17/12/2010
(54) Title of the invention : IMPROVED COOLING SYSTEM OF HYDRAULIC POWER STEERING
(51) International classification
:F01M5/00;
F01P11/08
(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 :N/A
(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)TATA MOTORS LIMITED
Address of Applicant :BOMBAY HOUSE, 24 HOMI MODY
STREET, HUTATMA CHOWK, MUMBAI 400001,
MAHARASHTRA INDIA.
(72)Name of Inventor :
1)SAGAR S ADE
2)NARAYAN D JADHAV
3)K GOPALAKRISHNA
(57) Abstract :
This invention relates to an improved cooling system for a hydraulic power steering system comprises an oil reservoir (11) that is
configured for storage of hydraulic steering oil. A power steering pump (12) receives the steering oil from the reservoir (11) and
pumps or pressurizes the steering oil to a steering gear box (13). The steering gear box (13) transmits power to turn the wheels of a
front axle and/or a rear axle in a vehicle. An oil cooler (14) is disposed in front of a radiator (16) of the vehicle in such a manner that
the steering oil from the steering gear box (13) passes through the oil cooler (14) for cooling the hot steering oil. Hence, the cooling
system reduces the need for frequent change of oil and oil seals and maintenance of the steering components, and enhances life of
flexible hose due to less oil temperature.
No. of Pages : 14 No. of Claims : 7