Variable radial fluid devices in series

摘要

According to one embodiment, a radial fluid device comprises a cylinder block, a first plurality of pistons, a second plurality of pistons, a first cam, a second cam, and a coupling device. Each of the first plurality of pistons are slidably received within a different one of a first plurality of radially extending cylinders. Each of the second plurality of pistons are slidably received within a different one of a second plurality of radially extending cylinders. The first cam is disposed about the first plurality of radially extending cylinders. The second cam is disposed about the second plurality of radially extending cylinders. The coupling device is operable to couple the cylinder block to a cylinder block of a second radial fluid device.

主权项

1. A fluid flow system comprising:
a first radial fluid device comprising:
a first cylinder block comprising a first plurality of radially extending cylinders, a second plurality of radially extending cylinders, and a shaft opening;a first plurality of cylindrical pistons each slidably received within a different one of the first plurality of radially extending cylinders, wherein each cylindrical piston includes:
a radially extending aperture; anda shoe configured to slide along a surface of a first cam that has two or more lobes configured such that the shoe completes two or more sinusoidal strokes per revolution of the cylinder block, the shoe having a rounded forward edge and a rounded trailing edge, the forward edge being the forward most edge of the shoe when the shoe experiences movement, the trailing edge being the rearmost edge of the shoe when the shoe experiences movement, the first cam being disposed about the first plurality of radially extending cylinders;a second plurality of cylindrical pistons each slidably received within a different one of the second plurality of radially extending cylinders, wherein each cylindrical piston comprises:
a radially extending aperture; anda shoe configured to slide along a surface of a second cam that has two or more lobes configured such that the shoe completes two or more sinusoidal strokes per revolution of the cylinder block, the shoe having a rounded forward edge and a rounded trailing edge, the forward edge being the forward most edge of the shoe when the shoe experiences movement, the trailing edge being the rearmost edge of the shoe when the shoe experiences movement, the second cam being disposed about the second plurality of radially extending cylinders, the second cam movable relative to the first cam;an input shaft coupled to the first cylinder block at the shaft opening, the input shaft operable to transmit rotational energy to the first cylinder block of the first radial fluid device; anda cam rotation device operable to rotate the first cam of the first radial fluid device in a first direction and the second cam of the first radial fluid device in a second direction opposite the first direction, the cam rotation device of the first radial fluid device comprising:
a first worm gear in contact with the first cam of the first radial fluid device;a first reverse rotation gear coupled to the first worm gear;a second worm gear in contact with the second cam of the first radial fluid device; anda second reverse rotation gear coupled to the second worm gear and in contact with the first reverse rotation gear; a second radial fluid device comprising:
a second cylinder block comprising a third plurality of radially extending cylinders, a fourth plurality of radially extending cylinders, and a shaft opening;a first plurality of cylindrical pistons each slidably received within a different one of the third plurality of radially extending cylinders, wherein each cylindrical piston includes:
a radially extending aperture; anda shoe configured to slide along a surface of a third cam that has two or more lobes configured such that the shoe completes two or more sinusoidal strokes per revolution of the cylinder block, the shoe having a rounded forward edge and a rounded trailing edge, the forward edge being the forward most edge of the shoe when the shoe experiences movement, the trailing edge being the rearmost edge of the shoe when the shoe experiences movement, the third cam being disposed about the first plurality of radially extending cylinders;a second plurality of cylindrical pistons each slidably received within a different one of the fourth plurality of radially extending cylinders, wherein each cylindrical piston comprises:
a radially extending aperture; anda shoe configured to slide along a surface of a fourth cam that has two or more lobes configured such that the shoe completes two or more sinusoidal strokes per revolution of the cylinder block the shoe having a rounded forward edge and a rounded trailing edge, the forward edge being the forward most edge of the shoe when the shoe experiences movement, the trailing edge being the rearmost edge of the shoe when the shoe experiences movement, the fourth cam being disposed about the second plurality of radially extending cylinders, the fourth cam movable relative to the third cam; and a coupling device in mechanical communication with the shaft opening of the second radial fluid device and the first cylinder block of the first radial fluid device opposite the shaft opening of the first radial fluid device, the coupling device operable to transmit rotational energy from the first cylinder block of the first radial fluid device to the second cylinder block of the second radial fluid device.