Abstract: A system is provided comprising an engine having a first cylinder bank and a second cylinder bank disposed in a VEE configuration, a first compressor configured to compress fluid to a first pressure, a first cooler coupled to the first compressor, the first cooler receiving the compressed fluid from the first compressor and cooling the compressed fluid, a second compressor coupled to the first cooler, the second compressor being configured to receive cooled, compressed fluid from the first cooler and compress the cooled, compressed fluid to a second pressure that is higher than the first pressure, and a second cooler coupled to the second compressor, the second cooler receiving the compressed fluid from the second compressor and cooling the compressed fluid for introduction into the pair of cylinder banks. The first compressor, the first cooler, the second compressor and the second cooler are disposed within the VEE.
Abstract: The invention concerns a rotary volumetric machine with three pistons comprising an enclosure forming a stator in which there moves a rotating assembly forming a rotor comprising a crankshaft that mechanically engages with the pistons, the rotating assembly defining, inside said enclosure, six chambers of variable volume of which the volume varies when the rotating assembly rotates, each of the pistons delimiting, with the enclosure, a variable volume chamber called the extrados chamber and two consecutive pistons delimiting, with the enclosure and the crankshaft, a variable-volume chamber called the intrados chamber. The geometry of the pistons and of the crankshaft is designed such that each intrados chamber has a capacity greater than or equal to the capacity of the extrados chambers.
Abstract: A supercharged internal combustion engine has a supercharger operable to selectively supply a mass of air from below through above atmospheric air pressure according to the operating requirements of the engine. The supercharger has a shuttle combined with a throttle valve that controls the mass of air directed to an air mass bypass opening and supplied to the internal combustion engine. The shuttle has rollers that ride on rails that allow the shuttle to move to open and close the air mass bypass opening in communication with a casing that directs a mass of atmospheric air and a bypass mass of air interfused with the mass of atmospheric air to an air mass inlet of the supercharger.
Abstract: Provided is a two-shaft rotary pump which is capable of improving reliability and operation efficiency by preventing an exhaust gas from flowing backward into a pump as much as possible, preventing the interior of the pump form being excessively compressed as much as possible, and suppressing temperature rise in the pump.
Abstract: A rotatory compressor and a refrigerating cycle device are provided. The rotatory compressor includes a lubricating oil in an interior of a hermetically sealed housing, and an electric motor and a rotatory compressing mechanism disposed in the housing. An internal pressure of the housing is substantially equal to a suction pressure of the compressing mechanism. The compressing mechanism includes a first bearing and a second bearing at least one of which includes an exhaust muffler. A refrigerant of the exhaust muffler flows through the sliding vane chamber and is discharged from an exhaust pipe of the compressing mechanism.
October 31, 2013
Date of Patent:
September 11, 2018
GUANGDONG MEIZHI COMPRESSOR CO., LTD.
Masao Ozu, Weimin Xiang, Jijiang Yu, Hong Guo, Jingtao Yang, Cheng Zhang, Bin Gao, Ling Wang
Abstract: A vehicle powertrain includes an engine having an air intake system and an exhaust system. A turbocharger includes a turbine section connected to the exhaust system and a compressor section connected to the air intake system. A wastegate is disposed in the exhaust system and movable between an open and a closed position by an actuator system. The actuator system includes an engagement device and detent mechanism for assisting with holding the wastegate in the closed position.
June 15, 2016
Date of Patent:
September 11, 2018
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Maqsood Rizwan Ali Khan, Pulasti Bandara, Mark R. Claywell
Abstract: A screw compressor includes a casing, a drive shaft, a screw rotor, a gate rotor, a slide valve, and a slide valve driving mechanism having a hydropneumatic cylinder. The drive shaft has one end supported via a bearing on a bearing holder held by the casing. The other end is coupled to an electric motor. A compression chamber is defined by the gate rotor meshing with a helical move formed on the screw rotor. The hydropneumatic cylinder is located opposite to the screw rotor with respect to the bearing. The bearing holder has an outer peripheral surface configured as a guide surface guiding a sliding movement of the slide valve. The bearing holder has axial end portions. One of the axial end portions located opposite to the screw rotor constitutes a cylinder tube of the hydropneumatic cylinder to achieve integration of the bearing holder and the hydropneumatic cylinder.
Abstract: A drive architecture comprises a rotor and a gearbox for driving the rotor. A pair of input gears provides rotational drive to the gearbox. A first recuperative cycle engine drives one of the pair of gears and a second engine drives the other of the pair of gears. The first recuperative cycle engine and the second engine are both gas turbine engines. A power takeoff from a drive shaft of the second engine supplies rotational drive to drive at least one component in the first recuperative cycle drive.
Abstract: In a scroll compressor, breakage of a spiral end portion of a spiral wall (10c, 11c) of a scrolls is prevented. [Solving means] In a scroll compressor including: a fixed scroll (10) including an end plate (10a) and a spiral wall (10c) extending upright from the end plate (10a); an orbiting scroll (11) including an end plate (11a) and a spiral wall (11c) extending upright from the end plate (11a); and a drive shaft (8) configured to transmit a rotational power to the orbiting scroll (11), and configured to compress a compressed fluid by an orbital motion of the orbiting scroll (11), an extending portion (113) which does not come into contact with the spiral wall (10c) of the fixed scroll (10) is provided so as to extend from a spiral end portion (112), which corresponds to a terminal end of a wall surface (compression forming portion (111)) which forms a compression chamber (15) on a spiral wall (11c) of the orbiting scroll (11).
Abstract: A variable displacement pump includes: a control mechanism arranged to be actuated based on a hydraulic pressure introduced into the introduction passage before the eccentric amount is minimized, and arranged to introduce the hydraulic pressure through a throttling to the second control hydraulic chamber when the hydraulic pressure introduced from the introduction passage is equal to or smaller than a predetermined pressure, and to discharge the hydraulic fluid within the second control hydraulic chamber in accordance with the hydraulic pressure when the hydraulic pressure introduced from the introduction passage becomes greater than the predetermined pressure; and a switching mechanism arranged to switch between a state in which the hydraulic fluid introduced into the introduction passage is introduced to the control mechanism, and a state in which the hydraulic fluid introduced into the introduction passage is discharged from the control mechanism.
Abstract: A vane pump is disclosed that includes a plurality of vanes and radial slots configured to provide a gap between the vane and the radial slot such that the vane has a different angular position relative to the direction of rotation in a radially extended position compared to an angular position in a radially-retracted position. The different angular positions provide different orientation of the arcuate surface of the vane tip portion with respect to the cam body inner surface, thus providing different fluid stop points on the vane tip portion arcuate surface.
July 21, 2015
Date of Patent:
August 14, 2018
HAMILTON SUNDSTRAND CORPORATION
Joseph Wetch, Weishun Ni, Edward W. Goy
Abstract: A compressor includes a shell, a motor assembly, a driveshaft, and a bearing assembly. The bearing assembly is disposed within the shell and supports the driveshaft for rotation. The bearing assembly includes a bracket, a hub, and a bushing. The bracket is coupled to the shell and includes an aperture. The hub is disposed within the aperture and defines a bore having a radially inwardly extending lip. The bushing includes a proximal portion and a distal portion. The distal portion of the bushing includes a plurality of radially extending engagement features. The distal portion of the bushing is disposed within the bore of the hub such that the engagement features engage the lip of the hub.
Abstract: A fluid pump includes a housing, a rotary shaft, and pump units which are contained in the housing and sucks in, pressurizes, and discharges fluid with being rotationally driven by the rotary shaft. The housing has a suction passage conducting the fluid from a suction port to the pump unit, a discharge passage conducting the fluid from the pump unit to a discharge port, a return passage returning a portion of the fluid flowing through the discharge passage to an upstream side of the pump unit, and a control valve controlling a flow of the returned fluid. The return passage is formed so as to conduct the returned fluid in the same direction as a flow of a sucked fluid flowing through the suction passage to make the returned fluid flow together with the sucked fluid.
Abstract: This oil pump is equipped with a rotatable inner rotor that includes a vane-housing unit housing multiple vanes so as to be capable of sliding in the radial direction, a rotatable annular outer rotor that includes multiple vane-connecting parts connecting the tip ends of the multiple vanes on the outside in the radial direction, first volume-changing parts, which are provided between the inner rotor and the outer rotor, and a first volume of which is changed in response to eccentricity of the inner rotor with respect to the outer rotor, thereby providing a pumping function, and second volume-changing parts, which are provided in the outer rotor, and a second volume of which is changed by a change in the distance between adjacent vane-connecting parts in the circumferential direction in response to eccentricity of the inner rotor with respect to the outer rotor, thereby providing a pumping function.
Abstract: A variable displacement pump includes: a first pressure control chamber; a second pressure control chamber; a spring arranged to urge the cam ring in a second swing direction; a hydraulic pressure supply valve arranged to be opened by a predetermined hydraulic pressure, and thereby to introduce a control hydraulic pressure to the first control chamber; a connection passage formed in the housing or the cam ring, and arranged to connect the first pressure control chamber and the second pressure control chamber; and a relief circuit arranged to connect the second pressure control chamber and a low pressure side, to be opened or closed in accordance with a swing position of the cam ring, and to be closed when the cam ring is swung by a predetermined amount in the first direction.
Abstract: The inventive rotary engine comprises a cylindrical chamber inside a casing wherein there is a concentric rotatable power shaft and a rotatable asymmetric main wheel mounted eccentrically enough as such to avoid contact with the wall of cylindrical chamber. Additionally two bars traversing the main wheel radially further having a wiping contact with the cylindrical chamber wherein one bar is fixed with power shaft and other bar is hinged with said power shaft. A combustion process is in action within a demarcated combustion chamber whereby the combustion chamber rotatably travels from a bottom dead volume to a top dead volume and hence a power, generated during this path of rotational travel, is subsequently available for delivery at the concentric power shaft.
Abstract: A rotary internal combustion engine includes a cylinder seat and a power wheel. The cylinder seat has a circular cylinder, at least one first explosion chamber disposed on a cylinder wall, and an ignition system, a fuel supply system, a compression assembly, an exhaust and an intake installed thereon for each respective first explosion chamber. The power wheel is slidably coupled to the circular cylinder, and has at least one compression chamber and a second explosion chamber disposed adjacent thereto and when rotated provides connection to the first explosion chamber. As a result of rotation of the power wheel, air and fuel gas are compressed in the compression chamber, collected into the first and second explosion chambers, and then ignited by the ignition system to produce a high explosive yield, so that the power wheel is rotated constantly in a single direction to provide high-efficiency kinetic energy.
Abstract: The present disclosure provides systems and methods related to thermal management systems for gas turbine engines. For example, a thermal management system comprises a fuel circuit, comprising a burn line and a recirculation line, and a burn line fuel-oil cooler, coupled to the burn line and an oil circuit. The oil circuit comprises a sending portion, configured to carry oil from the burn line fuel-oil cooler to an engine lube system, and a returning portion, configured to carry oil from the engine lube system to the burn line fuel-oil cooler. The thermal management system further comprises a recirculation fuel-oil cooler, coupled to the recirculation line and the returning portion, and an air-fuel cooler coupled to the recirculation line.
Abstract: A compressor includes a suction hole provided in a cylinder. The suction hole includes a plurality of portions being different in diameter and disposed from an outer circumferential side toward an inner circumferential side of the cylinder. The plurality of portions are reduced more in diameter toward the inner circumferential side of the cylinder. A central axis of an outer circumferential side suction hole of the plurality of portions intersects a central axis of the cylinder. A central axis of an inner circumferential side suction hole of the plurality of portions is parallel to the central axis of an outermost circumferential side portion and decentered from the central axis in an opposite direction to a direction of a spring hole.
Abstract: In accordance with the present invention, condensed water generated upstream of a compressor can be caused to flow into a groove 44, and temporarily accumulated therein. The condensed water flowing into the groove 44 moves to a lower portion in a gravity direction (that is, to an ABV 38-side) in the groove 44. When the ABV 38 is opened, the condensed water accumulated in the groove 44 is blown away to a center portion of an inlet 46 on a flow of a return gas, and, together with an intake gas flowing through the center portion, the condensed water flows into a compressor 20 from a center portion 42b of a front end surface of an impeller 42. Since the center portion 42b has a lower circumferential speed than that of an outer peripheral portion 42a, occurrence of erosion by contact with the condensed water can be suppressed as compared to the outer peripheral portion 42a.