| 摘要 |
<p>The hydraulic pump or motor comprises a stationary internal-gear ring meshing with an eccentrically rotating gear wheel between whose teeth suction and pressure areas are created during rotation. The areas connected, via ducts and ports in the housing, with a rotary valve with longitudinal distributor grooves contained in a bore in the housing. The ducts to the ports in the bore are formed by spaces axially extending between the fixing screws and the housing. The clearances in the bores for these screws, connect with kidney-shaped chambers overlapping half a tooth pitch of the gear ring.</p> |
