Vane pump apparatus

Abstract

Disclosed herein is a vane pump apparatus. The disclosed vane pump apparatus comprises a housing having an outlet channel; a reservoir tank which stores working oil and which is coupled to the housing; and a vane pump installed inside the reservoir tank to discharge the compressed working oil to the outlet channel.

1 . A vane pump apparatus comprising:
 a housing having an outlet channel;   a reservoir tank coupled to the housing and receiving hydraulic oil; and   a vane pump disposed inside the reservoir tank and discharging the compressed hydraulic oil to the outlet channel,   wherein the vane pump is formed at a front side thereof with a suction port, through which the hydraulic oil is suctioned into the vane pump, and a discharge port communicating with the outlet channel, and   wherein a portion around the suction port is separated from the housing to define a suction connecting channel.   
     
     
         2 . The apparatus of  claim 1 , wherein the housing is a sidewall body or a motor housing. 
     
     
         3 . The apparatus of  claim 1 , wherein a sealing ring is disposed between the housing and the reservoir tank to prevent oil leakage. 
     
     
         4 . The apparatus of  claim 1 , wherein the vane pump is integrally formed with a valve housing on which a relief valve is mounted.