Radial fluid device with multi-harmonic output

摘要

According to one embodiment, a radial fluid device contains a cylinder block mounted for rotation, a first and second plurality of radially extending cylinders, and a first and second cam. The cylinder block contains the first and second plurality of radially extending cylinders, and each radially extending cylinder contains a piston. The cams are disposed about each plurality of radially extending cylinders, and the second cam has at least one more lobe than the first cam.

主权项

1. A rotorcraft, comprising:
a body; a power train coupled to the body and comprising a power source and a drive shaft coupled to the power source; a rotor system coupled to the power train, the rotor system comprising a rotor blade; an actuator coupled to and operable to move the rotor blade; and a radial fluid device in fluid communication with the actuator, the radial fluid device comprising:
a cylinder block comprising a first plurality of radially extending cylinders and a second plurality of radially extending cylinders, wherein the cylinder block is mounted for rotation;a first plurality of pistons each slidably received within a different one of the first plurality of radially extending cylinders;a second plurality of pistons each slidably received within a different one of the second plurality of radially extending cylinders;a first cam disposed about the first plurality of radially extending cylinders; anda second cam disposed about the second plurality of radially extending cylinders, wherein the second cam has at least one more lobe than the first cam.