369results about "Rotary piston engines" patented technology

The utility model discloses a TMTB high-voltage cycloid motor brake increasing device which comprises an output shaft and a shell, the output shaft rotationally penetrates through the middle of the shell, a connecting plate is connected to the side face of the shell, a rear shell is connected to the side face of the connecting plate, the output shaft is fixedly connected to a large connecting shaft, and the large connecting shaft is fixedly connected to the shell. The large connecting shaft is located in the shell, the connecting plate and the rear shell, the end of the large connecting shaft is connected with a small linkage shaft, the small linkage shaft is rotationally arranged in the rear shell, a rear partition plate is arranged between the rear shell and the stator and rotor pair, the rear partition plate is arranged on the outer side of the small linkage shaft in a sleeving mode, and a wet-type copper-based friction plate is adopted. The brake has the advantages that the belleville spring serves as a brake composition unit, the copper-based friction plate does not pollute the cleanliness of oil in the motor, the integrated shuttle valve is used in a matched mode, the brake can be released when the motor is started, synchronous braking is achieved when the motor stops running, the braking state during stopping can be effectively guaranteed, and safety and reliability are achieved.

A method of assembling parts of an aircraft engine, the method includes: forming, at a first temperature, a pre-assembly of a first part of the aircraft engine and a second part of the aircraft engine by aligning the first part and the second part such as to be engageable within one another, the second part having a coefficient of thermal expansion that is greater than a coefficient of thermal expansion of the first part; heating the pre-assembly to a second temperature greater than the first temperature to expand the second part relative to the first part; and compressing the pre-assembly until the first part is inserted into the second part to create a contact interface between the first part and the second part.

According to the present invention, a fluid machine includes: a cylinder; a main shaft having a rotation center that coincides with an operation center of the cylinder; an eccentric shaft fixed to the main shaft, and configured to maintain and rotate at an eccentric interval (d) from the main shaft; a rotation / revolution shaft configured to rotate / revolve on the eccentric shaft; a rotary piston coupled integrally with the rotation / revolution shaft to rotate, and having a center that is eccentric to the rotation / revolution shaft by a distance (r) that is equal to the eccentric interval (d) (d=r); and a rotation ratio restraining device configured to restrain a rotation ratio of a main shaft rotational angular velocity (x) and a rotary piston rotational angular velocity (y) to 1:2.

A rotary piston internal combustion engine includes an engine housing, an output shaft configured to rotate relative to the engine housing about an axis for transmitting power to parts to be operated, a rotary piston mounted eccentrically on the output shaft, a first bearing configured to support and facilitate rotation of the output shaft, the first bearing being sandwiched between a first pair of seals and a second bearing configured to support and facilitate rotation of the rotary piston, the second bearing being sandwiched between a second pair of seals, wherein the output shaft defines an internal path which has a first section to allow a lubricating substance to flow between the first bearing and the second bearing, in use.

Methods, devices and media for a pre-enrollment registration system are described. The method includes: receiving signals representing pre-enrollment data, the pre-enrollment data including profile information associated with at least one prospective member; generating, with the at least one processor, a registration identifier for each of the at least one prospective members; storing each of the registration identifiers in association with the respective prospective member profile information; receiving, at the at least one processor, signals representing a registration request including the registration identifier associated with a requesting prospective member; generating, with the at least one processor, signals for displaying an interface, the interface including a plurality of profile fields, wherein at least one of the profile fields are pre-populated with at least a portion of the profile information associated with the requesting prospective member; and receiving signals for modifying or confirming the pre-populated profile fields.

The invention relates to the technical field of hydraulic motors, in particular to a cycloid hydraulic motor integrating self-lubricating and cooling functions, which can establish an oil return channel inside to smoothly discharge leaked oil, can take away heat and scrap iron generated by friction of a thrust bearing, and can form oil film lubrication between the front end of a shaft and a shell to ensure normal operation of the motor. The motor comprises a motor body, the motor body is provided with a first oil port and a second oil port, the first oil port and the second oil port are communicated with an internal oil duct, an output shaft is arranged in the motor body, and a thrust bearing and a thrust gasket are arranged between the front end of the output shaft and a shell of the motor body. An oil return channel is arranged between the thrust bearing and a shell of the motor body, an oil return through hole communicated with the oil return channel and the in-shaft counter bore is formed in the output shaft, the oil return channel is communicated with the first oil port and provided with a first one-way valve, and the second oil port is communicated to the peripheral face of the front end of the output shaft through an inner flow channel. The oil return channel communicates with the inner flow channel and is provided with a second one-way valve.

An asymmetric scroll compressor includes a compressor housing. An orbiting scroll member and a non-orbiting scroll member are disposed within the compressor housing. The orbiting scroll member and the non-orbiting scroll member each include a base plate and a scroll wrap extending from the base plate. The orbiting scroll member and the non-orbiting scroll member intermesh to form a plurality of compression pockets. A drive shaft is secured to the orbiting scroll member and is configured to orbit the orbiting scroll member from a first orbiting position to a second orbiting position. A communication port is disposed on the base plate of one of the orbiting scroll member and the non-orbiting scroll member such that, in the first orbiting position, the communication port is in communication with a first enclosed pocket of the plurality of compression pockets, and, in the second orbiting position, the communication port is in communication with a second enclosed pocket of the plurality of compression pockets.

According to the present invention, a fluid machine includes: a cylinder; a main shaft having a rotation center that coincides with an operation center of the cylinder; an eccentric shaft fixed to the main shaft, and configured to maintain and rotate at an eccentric interval (d) from the main shaft; a rotation / revolution shaft configured to rotate / revolve on the eccentric shaft; a rotary piston coupled integrally with the rotation / revolution shaft to rotate, and having a center that is eccentric to the rotation / revolution shaft by a distance (r) that is equal to the eccentric interval (d) (d=r); and a rotation ratio restraining device configured to restrain a rotation ratio of a main shaft rotational angular velocity (x) and a rotary piston rotational angular velocity (y) to 1:2.

The invention provides a motor stator for a short-bending-moment screw drill and a production method thereof.The motor stator comprises a shell part, a positioning part and a lining part which are coaxially arranged, the positioning part is sleeved with an inner cavity of the shell part, the lining part is sleeved with an inner cavity of the positioning part, and the lining part comprises a first ring layer and a second ring layer; the outer wall of the first ring layer is connected with the inner wall of the second ring layer in a sleeved mode through an adhesive, a containing cavity used for containing the rotor is formed in the inner wall of the first ring layer, the first ring layer is made of rubber, and the second ring layer is made of metal wires or fibers or cord fabrics. According to the motor stator for the short-bending-moment screw drill and the production method of the motor stator, the deformation resistance of the stator is effectively improved, the service life of the stator is prolonged, the stability of the drilling process is improved, and good torque transmission and bearing functions can be provided by reserving the first ring layer of the storage cavity.

The utility model relates to the technical field of hydraulic driving, in particular to a cycloid hydraulic motor with a driving gear, which comprises an output shaft, a front cover, a body shell, a separation disc, a rotor and stator pair and a rear cover, and the outer side end of the output shaft is axially sleeved with an external driving gear. According to the cycloid hydraulic motor with the driving gear, the rotor profile tolerance of the rotor and stator pair forms a special hill-shaped profile, so that mechanical interference is formed in the operation process, the motor obtains large starting pressure, and the motor has an oil cut-off locking function; the two end faces of the stator pin tooth part are of a double-counter-bore pressure equalizing groove structure, an end face friction pair forms an oil film, and the friction coefficient is reduced. The outer side end of the output shaft is axially sleeved with the external driving gear with the sinking groove, the baffle internally provided with the end bolts is inserted into the sinking groove for assembly, stability is improved, and the structural layout is more reasonable.

The invention relates to a fluid machine (1; 1a; 1b; 1c), in particular a hydraulic machine, which comprises at least one working chamber (14; 14a; 14b; 14c), wherein a rotor (3; 3a; 3b) is rotatable by a torque or by a fluid that flows into the at least one working chamber (14; 14a; 14b; 14c) on an inlet side and out of the at least one working chamber on an outlet side in order to operate the machine. A rotation of the rotor (3; 3a; 3b) in practice causes at least one valve (9, 10; 9a, 10a; 9b, 10b; 48) to be controlled. The valve is controlled directly via a movement of the rotor and synchronously thereto. An additional control unit for controlling the at least one valve is advantageously not required.

The invention discloses a motor element of a four-quadrant small-displacement internal gear pump. The motor element comprises a rear cover, a front cover body and a pump motor assembly, the rear cover and the front cover body are assembled and fixed, and the pump motor assembly is arranged in a shell of the front cover body. The invention has small displacement design and high rotating speed adaptability, is suitable for being directly connected with a high-speed motor, and reduces a speed reducing mechanism. And the device is compact and light in weight, and is suitable for mechanical-electrical-hydraulic integrated systems (such as robots and aviation hydraulic pressure) with limited space. The small displacement means lower rotational inertia, and the dynamic response is faster.

The present invention belongs to the field of cycloid hydraulic motors, and specifically relates to a hydraulic cycloid motor for improving the deformation of a balance disk, which includes a motor housing. An output structure is provided inside the motor housing, as well as a flow distribution disk, a stator-rotor pair, a balance disk, and a rear cover connected to the motor housing. A working chamber is enclosed by the rear cover and the balance disk. The motor housing is also provided with a first oil port and a second oil port, and both the first oil port and the second oil port are communicated with the working chamber. A second sealing ring is also provided between the rear cover and the balance disk. By means of the second sealing ring, the working chamber is divided into an inner working chamber and an outer working chamber, such that when the balance disk is fed oil through different oil ports, the area of the working oil chamber on the balance disk side is different, which can well adapt to the different liquid pressures on the rotor side, improve the working efficiency of the motor when the first oil port is fed oil, and make the efficiency of the motor similar when the motor is fed oil through different oil ports.

The utility model discloses a rear oil inlet DR series cycloid hydraulic motor which comprises a shell and a rear shell, the rear shell is connected with the shell, an output shaft is rotatably arranged in the middle of the shell, a stator and rotor pair is arranged at the joint of the shell and the rear shell, a linkage shaft is arranged at the center in the shell, and a motor is arranged in the linkage shaft. Two sealing oil cavities are formed through the commutator partition plate and the piston, high-pressure oil is distributed through the commutator, the high-pressure oil is continuously led into the oil distribution disc, and the high-pressure oil is continuously led into the oil distribution disc, so that the high-pressure oil is evenly distributed in the oil distribution disc. The rotor in the stator and rotor pair is pushed to rotate, the linkage shaft is driven at the same time, the output rotating speed and torque are output outwards through the output shaft, the output shaft is supported through the high-pressure seal and the heavy-duty bearing, meanwhile, a hole is drilled in the middle of the linkage shaft, the linkage shaft is cooled and lubricated through hydraulic oil in the shell, and the service life is prolonged.

The present invention relates to a force-multiplying mechanism comprising: A first wheel (1) that is toothed on the outside (11), which has one or more projections (12) with a smaller radius placed on one of the sides of the wheel, on the portion closest to the shaft (4) passing through said wheel; a second wheel (2) comprising a recess (21) with a smaller radius, which is located on the portion closest to the shaft (4) passing through said wheel, for each projection (12) of the first wheel (1), and respective curved hydraulic cylinders (23) are inserted with a piston at each upper and lower end thereof. The cylinders and the lower pistons thereof start at the recess (21) and run along said second wheel (2) until it reaches its outer circle, said cylinders and the upper pistons (22) thereof being superimposed on the edge of the aforementioned second wheel (2).

The invention relates to an internal combustion engine having a shaft (41) on which a drive element (400) is provided, a first cylinder (9) with a first drive piston (3) movably mounted therein, and a second cylinder (10) with a second drive piston (4) movably mounted therein, wherein the first drive piston (3) is fluidically coupled to a first working piston (43) in a first working cylinder (35), the second drive piston (4) is fluidically coupled to a second working piston (29) in a second working cylinder (33), and the first and second working piston (43, 29) move back and forth in opposite directions in the first and second working cylinder (25, 33) and are operatively connected to the drive element (400). The invention also relates to a method for operating the internal combustion engine, to a use of the internal combustion engine for driving a motor vehicle, aircraft or ship, and to a motor vehicle, aircraft or ship which contains the internal combustion engine.

The application relates to an elliptical wheel machine, which comprises a machine body, the machine body being a driving machine when medium pressure is reduced, and the machine body being a driven machine when medium pressure is increased. When the machine body is the driving machine, the machine body comprises a front cylinder body and a rear cylinder body communicated with the front cylinder body, the included angle between the center line of the front cylinder body and the center line of the rear cylinder body being 90 DEG; when the machine body is the driven machine, the machine body comprises a front cylinder body and a rear cylinder body communicated with the front cylinder body. The application has the advantages that the inner cavity of the stator is divided into four chambers, the difference between the long axis and the short axis of the ellipse is ingeniously utilized, thrust is generated under the action of pressure difference, and then the thrust is converted into torque, the function of the engine is realized, and the function of the driven machine is realized under the action of input torque.

A rotary oil electric hybrid engine, which is an engine with a completely new structure. Taking the example that the inner rotor is connected to the power output shaft, regarding the structural features, the outer rotor cylinder and the inner rotor axis form an annular chamber. The outer rotor blades and the inner rotor blades divide the annular chamber into a combustion chamber and a buffer chamber. The outer rotor and the inner rotor rotate in the same direction within the range of the change angle difference within the circumferential angle. Regarding the operating characteristics, when starting cold, the gas in the combustion chamber is exhausted. The numerical control motor is interlocked with the bumps of the limit ring, meshes the inner rotor and the outer rotor, rotates them at the same speed, and reaches a high rotational speed. During the intake stroke, the numerical control motor decelerates to drive the outer rotor to decelerate. Inertia increases the angle difference between the inner rotor and the outer rotor to realize the intake stroke. The numerical control motor accelerates to catch up and reduces the angle difference between the inner rotor and the outer rotor to realize the compression stroke. The total mass of the numerical control motor, the inertial flywheel and the outer rotor is much larger than the mass of the inner rotor, providing a reaction force rotating in the same direction during the expansion work stroke. The numerical control motor accelerates to catch up and reduces the angle difference between the inner rotor and the outer rotor to complete the exhaust stroke and enter the cycle.

The utility model relates to technical field of hydraulic system especially relates to a cycloidal hydraulic motor with brake mechanism. A cycloidal hydraulic motor with brake mechanism, include: rotation stator pair, rotation stator pair includes eccentric engagement's outer stator and inner rotor, the inner circumference of inner rotor forms and has inner taper face, brake cylinder, brake cylinder is axially sliding assembly, brake cylinder's one end near inner rotor forms and has outer taper face, when brake cylinder slides towards inner rotor, brake cylinder's outer taper face and inner taper face taper face cooperation of inner rotor with brake. Solve the technical problem of the prior art in the cycloidal hydraulic motor's brake structure complex, the big installation space, lead to the axial dimension of motor increase.

A channel seal (200, 300) for a scroll pump (100). The channel seal comprises an inner portion (210, 310) and an outer portion (220, 320) located around the periphery of the inner portion. The outer portion is formed from a more wear resistant material than the inner portion. A surface of the inner portion which is subject to wear during operation of the scroll pump is axially offset from a surface of the outer portion which is subject to wear during operation of the scroll pump.

Aspects of the present invention relate to a stator component (5) for a pump housing (1). The stator component (5) has a plurality of fluid inlet channels (19-n) for conveying fluid to respective pumping chambers (11-n). The fluid inlet channels (19-n) each have an inlet port (21-n) for conveying fluid into the pumping chamber (11-n). A plurality of fluid transfer channels (31-n) are provided for conveying fluid to a respective one of the fluid inlet channels (19-n). The fluid transfer channels (31-n) each have an inlet for receiving pumped fluid. The stator component (5) is adapted to receive at least one sealing member (43) for inhibiting the conveyance of fluid into an associated one of the pumping chambers (11-n). Aspects of the present invention relate to a pump housing (1), a cover plate (9) and a pump (3). Aspects of the present invention also relate to a method of converting a stator component (5, 7).

The utility model relates to the technical field of cycloid hydraulic motors, in particular to a hydraulic cycloid motor which is characterized in that when the hydraulic cycloid motor is used, a motor body is mounted on a mounting seat assembly through a positioning plate, and then the motor body is secondarily processed by the positioning assembly, so that the mounting firmness is improved; comprising a motor body and a positioning plate, the motor body is fixedly sleeved with the positioning plate, the motor further comprises an installation base assembly and a positioning assembly, the motor body and the positioning plate are arranged on the installation base assembly in a matched mode, and the positioning assembly is installed on the installation base assembly and used for positioning and installing the motor body.

The HMM cycloid hydraulic motor of the brand new structure comprises a motor shell, a rear cover is arranged below the motor shell, a step groove is formed in the bottom of the motor shell, and a plurality of step blocks matched with the step groove are fixedly connected to the top of the rear cover. The O-shaped sealing ring is installed in the inner cavity of the annular groove, then the stepped block is plugged into the inner cavity of the stepped groove, the O-shaped sealing ring deforms in the inner cavity of the annular groove, the stepped sealing effect is achieved, the concave sealing ring installed in the inner cavity of the rectangular cavity is inserted by the annular extrusion block, and the sealing effect is good. When the hydraulic motor is in a high-pressure working environment, the concave sealing ring deforms to perform extrusion deformation type sealing on the joint of the motor casing and the rear cover, so that multiple sealing is realized, namely a stepped structure and an extrusion deformation type multiple sealing structure are adopted, the hydraulic motor can be better sealed in the high-pressure working environment, the reliability of mechanical equipment is improved, and the service life of the hydraulic motor is prolonged. And the purpose of reducing the maintenance cost is achieved.

An object of the present invention is to provide a rotary heat pump that does not allow lubricating oil to stay in a bypass path that connects expansion regions to each other. As a solution, a rotary heat pump (100) is provided, which includes: a rotary drive unit (60) having a rotor (20), a rotor housing (30), a first side housing (40), and a second side housing (50), the rotor (20) eccentrically rotating as the rotary shaft (10) rotates, and the first side housing (40) and the second side housing (50) covering the rotor housing (30); heat exchange fins (70) disposed on the outer surface of the rotor housing (30) in each of the compression region (32) with the smallest planar area and the expansion region (34) with the largest planar area defined by the rotor (20) and the rotor housing (30); and a bypass path (90) that connects a first expansion region (34A) and a second expansion region (34B), and an interval from the uppermost position (94) to each expansion region (34A, 34B) in the bypass path (90) is formed by a descending slope portion (96).

The utility model discloses an anti-corrosion maritime work motor which comprises a cycloid motor, the cycloid motor is provided with a body shell made of 316L stainless steel, a front cover of the body shell is provided with a double-shaft-seal structure, a rear cover of the body shell is provided with two joints, and the joints adopt a sealing structure of a combined gasket and double O-shaped rings. Multiple sealing is adopted, the internal structure is simplified, and the anti-corrosion performance is improved.

A rotary engine has a rotor with a rotor pocket for receiving air-fuel mixture that is combusted therein to propel the rotor within the housing. The rotary engine may have one or more intake spray injectors that spray fuel into the rotor pocket and onto the rotor face within the intake chamber to effectively cool the rotor pocket and rotor face. An air channel extension of the rotor pocket may be configured in the housing and / or in the rotor to extend from the compression chamber into the ignition- combustion chamber to relieve some pressure in the trailing compression chamber of a rotor face to minimize negative work. A supplemental air-fuel conduit may be configured to supply high-pressure gas from the compression chamber to an ignition injector(s). A thrust nozzle may be configured within the rotor pocket to direct combustion gases therethrough to propel the rotor and increase efficiency.

A vane pump or motor assembly includes a housing having an inner cavity with an inner wall disposed about a first central axis. A rotor is disposed in the inner cavity and is rotatable about a second axis that is offset from the first axis to create a variable width space between the rotor and the inner wall. Vanes are moveably carried by the rotor and engage the inner wall to partition the variable width space into a plurality of chambers of increasing and decreasing volume in response to rotating the rotor. Each vane is in the form of a leaf vane having a mounting end formed with a hook portion and wherein the rotor includes corresponding recesses with latch portions that engage of each respective hook portion and supports the leaf vanes for outward swinging movement relative to the rotor for engaging the inner wall of the inner cavity.

The present application relates to a rotary device and a power source, the rotary device comprising: a rotating assembly, comprising a rotor and a stator coaxially arranged and rotatably engaged, a receiving groove formed between the rotor and the stator, the wall surface of the rotor enclosing the receiving groove being at least partially arcuate, the arcuate surface being recessed in a direction away from the stator; a rolling element arranged in the receiving groove and rollingly engaged with the arcuate surface and the stator; a flow limiting portion arranged in the receiving groove and sealingly engaged with at least part of the side wall surface of the rolling element, the rolling element and the flow limiting portion separating the receiving groove into a medium input chamber and a medium output chamber, the rotor being provided with a flow guide channel and a medium outlet, the flow guide channel being able to guide the external medium to the medium input chamber and act on the rolling element before being discharged from the medium outlet through the medium output chamber to drive the rotor to rotate relative to the stator. The embodiments of the present application can meet the connection requirements requiring rotating mating components, while being conducive to driving and not subject to operating cost constraints.