Abstract:
The invention relates to the discovery that employing a toroidal intersecting vane machine (TIVM) within the internal combustion engine provides substantial improvements in controlling pressure, air pressure and air flow into an engine, while maintaining a simplified mechanical system and providing a compressor with little or no parasitic load on the engine. This invention covers the use of the TIVM for the purpose of providing this control.
Abstract:
A variable capacity pump/motor (100) has a meshing internal and external gear set (128, 124) disposed between an upper mandrel (140) and a lower mandrel (110), each including a flange (120, 144) extending towards the gears to divide a pump/motor chamber into suction and discharge chambers. The outer gear (126) is fixed and the internal gear (128) is axially moveable with respect thereto. The inner gear (128) and the upper mandrel (140) move in response to changing pressures in the casing (102), allowing the motor to vary displacement and the pump to vary its output based on supplied fluid pressure or based on the speed of the prime mover (20). An external configuration (200) includes a pair of meshing gears (214, 218) mounted on separate shafts (222, 224) in a casing (202). One gear (214) is fixed and the other (218) is axially moveable with respect thereto and moves in response to changing pressures in the casing. Each of the gears is sealed by a seal/bushing (226, 228) on a free end thereof.
Abstract:
The present invention relates to an evacuation apparatus for evacuating a vacuum chamber of a substrate processing apparatus for processing a substrate such as a semiconductor wafer or liquid crystal panel. An evacuation apparatus according to the present invention includes a first vacuum pump connected to a vacuum chamber, and a second vacuum pump connected to the first vacuum pump. The first vacuum pump has a pair of multistage pump rotors.
Abstract:
A pump assembly (100) having a pump housing (206 and 208) and a rotor (222) rotatingly disposed within the housing, the rotor having a plurality of slots (226). The pump assembly includes a plurality of vanes (224), each vane moveably disposed in one of the plurality of slots, and an input shaft (228) coupled to the rotor for applying a torque to the rotor. The pump assembly (100) also includes a prime mover (400) for generating a torque and a magnetic coupling unit (300) for magnetically transferring the torque generated by the prime mover to the input shaft. The vanes may have a leg (256) which extends radially inward from a blade (254). The rotor and input shaft may be integrally formed.
Abstract:
A fluid power transfer device (20) includes a wobble plate assembly (26) having a wobble plate (58) that rolls against truncated cone portions (42) of a housing (22) and has an inner extremity 60) rotatably supported by an axially inclined annular bearing (49), 49') on a spherical member (46) of the wobble plate assembly so as to rotate a shaft (24) during the wobbling motion. One embodiment includes a journal bearing (49) and an oil lubrication system (114) and another embodiment includes antifriction roller bearings (220) that support the wobble plate (58) on the spherical member (46), antifriction roller bearings (224) that rotatively support the shaft (24) on the housing (22') and seals (226) that rotatively seal between the shaft (24) and the housing (22'). The fluid power transfer device can be used as an internal combustion engine, a heat engine, a pump, a compressor or a fluid motor.
Abstract:
A compressor including a cylinder assembly having a compression space through which suction passages and discharge passages are connected, a rotation driving unit inserted into the compression space of the cylinder assembly to transfer a rotation force, a slant compression slanted plate installed in the compression space to divide the compression space into at least two parts and rotating by being connected to the rotation driving unit, and vane units attached on both sides of the slant compression plate to classify the partitioned compression space into a suction space and a compression. With this construction, a vibration and a noise can be reduced and a stable driving force can be obtained even with a relatively small capacity electric motor. In addition, since fluid can be compressed and discharged simultaneously in both sides of the slant compression plate, an excellent compression performance can be accomplished in a simple structure.
Abstract:
The present invention relates to a spherical positive-displacement machine that can be used as an engine, a pump or a compressor. The machine includes a body comprising two parts (1, 2) in which the spherical cavity comprises three rotors (4, 5, 6). The central disc rotor (4) is connected on both sides through a diametrical hinge to the sectorial rotors (5, 6). The rotors (4, 5, 6) define four chambers (9, 10, 11, 12), while the radial chamber-defining surfaces of the rotors (4, 5, 6) have a circular shape. Inlet-outlet channels (15, 16, 17, 18) are provided in the sectorial-rotor closure area during the cycle changes within the chambers, wherein said channels include a nozzle portion and have a tangential inclination. The diametrical hinge of the sectorial rotor (6) includes two connected semi-axes (21, 22) having their journals extending into the meniscus of a spherical form (25), while the second diametrical hinge (5) comprises a solid cylindrical axis. The half-bodies (1, 2) include a centering device (3) that allow for the modification of the phase definition angle and of the machine precession. A channel network (26, 27, 28, 29, 30) is provided in the rotor unit for lubricating and cooling the same. The machine body further includes an oil discharge and drainage slot device (33), while a gap is provided between the portions of the body (1, 2) and the shafts (7, 8) for assembling the machine.
Abstract:
A work unit, such as a blower, compressor, supercharger or engine is shown with a main shaft (1) and a pair of pistons (3) mounted on respective shafts (4). The main shaft (1) and the shafts (4) are connected by suitable gearing to hold the pistons (3) in a stationary orientation relative to the axis of the main shaft (1) and the housing (5). The main shaft (1) has a pair of opposed part cylindrical recesses (55) to accommodate the respective pistons (3). The arcuate surfaces (R4) of the pistons (3) cooperate with the concentric arcuate surface (R5) of the shaft (1). As the shaft (1) rotates, the edges or tips (48) of the pistons (3) can cooperate with the respective top and bottom arcuate surfaces (R1, R2) of the inner surface (49) of the housing (5) on either side of the blades (53, 54), while the external arcuate surfaces (R4) of the piston (3) can cooperate with the concentric arcuate surfaces (R3) of the internal surface (49) of the housing (5).
Abstract:
A silencer (40s) for the primary air intake port (35) of an air compressor (11) which includes a) a housing (40) defining a cylindrical chamber (49) with an inlet orifice (45) at one end and an outlet orifice (46) at the other and b) a baffle (50) including i) a substantially cylindrically shaped portion (51) generally concentrically positioned within the chamber (49) which divides the chamber (49) into a central cylindrical compartment (56) in fluid communication with the outlet orifice (46) and an annular compartment (57) in fluid communication with the inlet orifice (45), ii) an opening (55) through the cylindrical shaped portion (51) of the baffle (50) proximate the inlet orifice (45) for providing fluid communication between the central cylindrical compartment (56) and the annular compartment (57), and iii) a wing (52) extending generally radially from the cylindrically shaped portion (51) of the baffle (50) into contact with the housing sidewall (43) between the inlet orifice (45) and the opening (55) forcing air flowing into the chamber (49) from the inlet orifice (45) to travel along substantially the entire circumference of the annular compartment (57) before entering the central cylindrical compartment (56) through the opening (55) in the baffle (50).