Pump System

Abstract

One embodiment of the pump system includes a cover housing and a main body affixed to one another for operation. A drive and idler gear may be mounted within a gear chamber in the main body for rotation there about, and inlet fluid may be provided on both the axial and radial surfaces of the drive and idler gear. The cover housing may be outfitted with one pressure relief channel or with two pressure relief channels of different geometric sizes and with different actuation pressures. The drive and/or idler gear may have dimples fashioned on an axial surface thereof, and lubricant troughs may be fashioned at various locations in the main body and/or the cover housing to reduce wear within the pump.

1 . A pump comprising a rotating and a stationary component having at least one interface there between, wherein said at least one interface is configured with a plurality of dimples. 
     
     
         2 . The pump according to  claim 1  wherein said rotating component is further defined as a rotary gear set comprising:
 a. a rotor gear, wherein said rotor gear is formed with a plurality of dimples on an axial surface of said rotor gear; and 
 b. a stator ring gear, wherein said stator ring gear is formed with a plurality of dimples on an axial surface of said stator ring gear. 
 
     
     
         3 . The pump according to  claim 2  wherein said stationary component is further defined as comprising a main body surrounding the periphery of said stator gear and a cover housing that may be cooperatively engaged with said main body. 
     
     
         4 . The pump according to  claim 2  wherein said stator ring gear further comprises a plurality of stator radial bores therein. 
     
     
         5 . The pump according to  claim 3  wherein said pump further comprises a plurality of rotor grooves fashioned on an axial surface of said rotor gear and a plurality of stator grooves fashioned on an axial surface of said stator ring gear. 
     
     
         6 . The pump according to  claim 5  wherein said plurality of rotor grooves is further defined as four rotor grooves oriented at zero, ninety, one hundred-eighty, and two hundred-seventy degrees, respectively, about the geometric center of said rotor gear, and wherein said plurality of stator grooves is further defined as four stator grooves oriented at zero, ninety, one hundred-eighty, and two hundred-seventy degrees, respectively, about the geometric center of said stator ring gear. 
     
     
         7 . A pump comprising:
 a. a main body, said main body comprising;
 i. a gear chamber; 
 ii. a mounting base, wherein an outlet interface is formed on one surface of said mounting base, wherein a pump outlet port is positioned within the periphery of said outlet interface, and wherein the position of said pump is secured via said mounting base; 
 iii. a cover housing interface surface; 
 iv. a pump outlet passage fluidly connecting said gear chamber and said pump outlet port; 
 v. a radial inlet port in fluid communication with said gear chamber; 
 vi. a radial inlet port passage in fluid communication with said radial inlet port and said cover housing interface surface; 
   b. a rotary gear set positioned in said gear chamber of said main body, said rotary gear set comprising:
 i. a rotor gear, wherein said rotor gear is formed with a plurality of dimples on an axial surface of said rotor gear; and 
 ii. a stator ring gear, wherein said stator ring gear is formed with a plurality of dimples on an axial surface of said stator ring gear.