Axial washer for a gear-type pump comprising an axial washer of this type

Abstract

An axial washer of a gear-type pump, in particular an internal gear pump, includes a seal which surrounds a pressure area of the axial washer. The seal is applied to the axial washer as a free-flowing bonding mass that bonds with the axial washer.

1 . An axial washer for a gear-type pump, comprising:
 an axial washer body having an outer side; and   a seal surrounding a pressure area on the outer side, the seal is being applied to the axial washer body as a free-flowing and setting compound which, after setting, forms the seal and is joined materially to the axial washer body.   
     
     
         2 . The axial washer as claimed in  claim 1 , wherein the axial washer body has the pressure area. 
     
     
         3 . The axial washer as claimed in  claim 1 , wherein the seal is applied in a fillet or a groove which surrounds the pressure area. 
     
     
         4 . A gear-type pump, comprising:
 two meshing gearwheels;   an axially movable, rotationally fixed axial washer configured to laterally seal a discharge region of a pump space between the gearwheels;   a pressure area on an outer side of the gearwheels, said outer side facing away from the gearwheels, the pressure area communicating with the discharge region such that, when subjected to pressure from the outside, the axial washer is pressed against one side of the gearwheels of the gear-type pump; and   a seal surrounding the pressure area, the seal is being applied as a free-flowing and setting compound to the axial washer or to an inner wall of a pump casing of the gear-type pump facing the axial washer,   wherein, after setting, the free-flowing compound forms the seal and is joined materially to the axial washer or to the inner wall of the pump casing.   
     
     
         5 . The gear-type pump as claimed in  claim 4 , wherein the gear-type pump is an internal gear pump.