Swashplate and Barrel Assembly
(1) Shaft. (4) Cylinder barrel. (7) Port plate. (8) Swashplate. (9) Spring. (10) Piston.
The maximum position of the swashplate (8) is shown in
illustration (2). As the pistons (10) follow the swashplate the
pistons move in and out of the barrel (4). As the pistons (10)
move out of the cylinder, oil is supplied behind the pistons.
This oil is supplied under pressure from the charge circuit
through passage (13). Oil is pushed ahead of the pistons (10)
and this oil goes through the outlet passages of the port plate
(7). Oil will exit the pump through the main loop (11). The
surfaces of the port plate (7) and the barrel (4) are spherical in
shape. The inlet oil and the outlet oil are sealed from each
other by a metal-to-metal seal. The seal is located between
the spherical faces of the port plate (7) and the cylinder barrel