Assembly type oil cooler for intensively cooling hydraulic machinery

Abstract

An assembly type oil cooler has developed for intensively cooling the various kinds of hydraulic machineries. The oil cooler comprises a main body assembled with a plurality of the body units having a plurality of bolt-holes for assembling and water passages disposed circumferentially for cooling, a plurality of annular-sealing having arched sectors, an oil inlet and an oil outlet are installed at the front and rear of the body units, a pair of front and rear flange plates installed at both end-sides of the body units, a plurality of heat exchange pipes and supporting rods inserted to supporting rod engaging holes through supporting rod holes, a front flange-cap having two compartments to connect a cooling water inlet and an outlet and the body cooling water inlets, and a rear flange-cap having the body cooling water inlets arranged around the body unit for connecting the water passages of the rear flange plate.

1 - 5 . (canceled) 
   
   
       6 . An assembly type oil cooler for intensively cooling hydraulic machinery, the oil cooler comprising:
 a main body assembled a plurality of body units ( 10 ) being bolt-fastened in series, wherein each body unit ( 10 ) having a plurality of bolt-holes ( 13 ) for assembling and water passages ( 18 ) arranged circumferentially thereof for cooling the body units ( 10 ),   a plurality of annular-sealing ( 23 ) alternately inserted between the body units ( 10 ), in such a manner that a plurality of arched sectors ( 31 ) are confronted each other,   an oil inlet ( 2 ) and an oil outlet ( 3 ) installed at front and rear of the main body, respectively,   a pair of front and rear flange plates ( 9 ) installed at both end-sides of the main body,   a plurality of heat exchange pipes ( 20 ) inserted into heat exchange pipe engaging openings ( 19 ),   a pair of supporting rods ( 28 ) inserted into supporting rod engaging holes ( 30 ) of the flange plates ( 9 ) through supporting rod holes ( 25 ) of clogging plates ( 24 ) and the annular-sealing ( 23 ) being formed the arched sectors ( 31 ), and   a front flange-cap ( 7 ) attached to the front flange plate ( 9 ) to form two compartments being separated by a partition wall ( 26 ), said front flange-cap ( 7 ) having a cooling water inlet ( 4 ) and a cooling water outlet ( 5 ) for connecting to each compartment, and a plurality of body cooling water inlets ( 12 ) arranged around the body unit for connecting the water passages ( 18 ) of the front flange plate ( 9 ), and   a rear flange-cap ( 8 ) attached to the rear flange plate ( 9 ) to form single compartment ( 11 ), and said rear flange-cap ( 8 ) having a plurality of the body cooling water inlets ( 12 ) arranged around the body unit ( 10 ) for connecting the water passages ( 18 ) of the rear flange plate ( 9 ).   
   
   
       7 . The assembly type oil cooler according to  claim 6 , wherein said pair of front and rear flange plates ( 9 ) is consisted of double flanges, a plurality of sealing grooves ( 17 ) is formed around the heat exchange pipe engaging openings ( 19 ) between contacted surfaces of the double flanges of the front and rear flange plates ( 9 ), and a plurality of sealing rings ( 16 ) is mounted on each sealing groove ( 17 ). 
   
   
       8 . The assembly type oil cooler according to  claim 6 , wherein said heat exchange pipes ( 20 ) have a plurality of fins ( 21 ) formed around outer surface thereof, said heat exchange pipes ( 20 ) are inserted and installed to the heat exchange pipe engaging opening ( 19 ) on both front and rear flange plates ( 9 ). 
   
   
       9 . An assembly type oil cooler for intensively cooling hydraulic machinery, the oil cooler comprising:
 a main body forming a single cylindrical body unit ( 29 ) to have a plurality of water passages ( 18 ) arranged circumferentially thereof for cooling the body unit ( 29 ),   an oil inlet ( 2 ) and an oil outlet ( 3 ) are installed at front and rear of the body unit ( 29 ), respectively,   a front flange plate and a rear flange plate ( 9 ) installed at both end-sides of the body unit ( 29 ),   a plurality of heat exchange pipes ( 20 ) inserted into heat exchange pipe engaging openings ( 19 ),   a pair of supporting rods ( 28 ) inserted into supporting rod engaging holes ( 30 ) through supporting rod holes ( 25 ) of a plurality of clogging plates ( 24 ), wherein said clogging plates ( 24 ) arranged at predetermined intervals have formed arched sectors ( 31 ) for fixedly mounting the heat exchange pipes ( 20 ) and,   a front flange-cap ( 7 ) attached to the front flange plate ( 9 ) to form two compartments being separated by a partition wall ( 26 ), said front flange-cap ( 7 ) having a cooling water inlet ( 4 ) and a cooling water outlet ( 5 ) for connecting to each compartment, and a plurality of body cooling water inlets ( 12 ) arranged around the body unit ( 10 ) for connecting the water passages ( 18 ) of the front flange plate ( 9 ), and   a rear flange-cap ( 8 ) attached to the rear flange plate ( 9 ) to form single compartment ( 11 ) and said rear flange-cap ( 8 ) having a plurality of the body cooling water inlets ( 12 ) arranged around the body unit ( 10 ) for connecting the water passages ( 18 ) of the rear flange plate ( 9 ).   
   
   
       10 . The assembly type oil cooler according to  claim 9 , wherein said front and rear flange plates ( 9 ) are consisted of single flange, a plurality of sealing grooves ( 17 ) is formed around the heat exchange pipe engaging openings ( 19 ), a plurality of sealing rings ( 16 ) is mounted on each sealing groove ( 17 ). 
   
   
       11 . The assembly type oil cooler according to  claim 9 , wherein said heat exchange pipes ( 20 ) have a plurality of fins ( 21 ) formed around outer surface thereof, said heat exchange pipes ( 20 ) are inserted and installed to the heat exchange pipe engaging opening ( 19 ) on both front and rear flange plates ( 9 ).