GEAR-TYPE PUMP WITH INTERNAL ENGAGEMENT AND VEHICLE HAVING A GEAR PUMP WITH INTERNAL ENGAGEMENT Russian patent published in 2020 - IPC F04C2/10 F04C15/00 F01C21/10 

FIELD: transport machine building.

SUBSTANCE: group of inventions relates to a gear wheel pump with internal engagement for a vehicle and a vehicle. Pump has housing (3) with rotary chamber (4), in which there is ring gear (6) having an internal toothed rim with internal teeth (7a–7g), which is made with possibility of engaging with gear wheel (11) installed eccentrically relative to ring (6) and having external gear rim with external teeth (12a–12f). In the pump, at least one discharge channel (19) is provided, which forms a hydraulic connection between the teeth engaging area (13a) and delivery chamber (18), as well as one additional channel (20), which forms a hydraulic connection between tooth abutment region (14a) and pressure chamber (18). At least one channel (20) is made in area of wall (4a) of chamber (4) adjoining area (14a) and, starting from there, is led to wall (4a) made at a distance from it and/or terminating therein chamber (18).

EFFECT: group of inventions is aimed at providing high hydromechanical efficiency and low emission of interfering noises.

14 cl, 2 dwg