PUMP DEVICE WITH SLIDING BEARING SYSTEM Russian patent published in 2018 - IPC F04D13/02 F04D29/47 F04D29/06 

FIELD: machine building.

SUBSTANCE: invention relates to a pump device, in particular an electromagnetic clutch. Pump device comprises housing (2) with inner space (11), sealing cup (10) tightly sealing chamber (12) with respect to space (11). Device also includes impeller (16) arranged on shaft (13) mounted in supports by means of slide bearing system (14). First bushing (26) and second bushing (38) of the bearing are connected in a manner that prevents rotation with shaft (13). First and second bearing shells interact through the support surface of the radial bearing, respectively, with first and second bushings (26, 38). Both bearing shells are connected in a manner that prevents rotation with housing (2). Retaining ring (31) is positioned between first and second bushings (26, 38). In ring (31), on end faces facing first and second shells there are first and second annular grooves, respectively, which accommodate first and second axle bearing rings, respectively. In ring (31), there is at least one drilled hole which connects the first annular groove with another annular groove made in the region of retaining ring (31) facing shaft (13), and/or in retaining ring (31) there is at least one drilled hole which connects the second annular groove with said annular groove in the region of retaining ring (31) facing shaft (13).

EFFECT: invention is aimed at improving axle bearing lubrication, reducing radial reaction forces of the bearing and making maintenance easier.

5 cl, 2 dwg