590results about "Rotary piston engines" patented technology

An adding system for fire-extinguishing units includes a motor, which can be driven by an extinguishing agent stream, an adding pump, which can be driven by the motor, an adding line, and an extinguishing agent additive line. The outer wall of the working chamber of the motor is in the form of a rotation motor, which can also have the shape of a logarithmic spiral. Furthermore, the wall of the drainage housing of the motor, which is in the form of a rotation motor, can have a through-slot for letting the extinguishing agent in and / or out. Moreover, the inlet of the adding pump can be arranged such that the extinguishing agent additive can flow into the adding pump substantially parallel to the movement direction of the pistons of the adding pump. Finally, the adding pump can have an integrated relief valve.

A rotary heat engine 100 comprises a rotor 200 rotatable relative to a stator 300. The stator defines a radially inner surface 304 which faces a radially outer surface of the rotor. The rotor radially outer surface defines at least one rotor combustion chamber 210, and the stator radially inner surface defines at least one stator combustion chamber 310. The number of rotor combustion chambers is not equal to the number of stator combustion chambers. The or each rotor combustion chamber may extend radially inwardly at a leading edge 212 to define a rotor step 216 and reduce in depth towards a trailing edge 214. A rotor surface base wall 218 may face the stator and extend from the leading to the trailing edge of the rotor combustion chamber to define a rotor combustion chamber convex surface 220 extending at least part of the way from the leading to the trailing edge of the rotor combustion chamber.

An engine housing for an aircraft rotary engine includes a rotor housing and a side housing assembly. The rotor housing includes a rotor housing body. The rotor housing body extends about an axis to form a rotor cavity of the engine housing. The rotor housing body extends between and to a first axial end and a second axial end. The side housing assembly includes a side housing body, a side plate, and a seal assembly. The side housing body is disposed at the first axial end. The side plate includes an inner side, an outer side, and a perimeter edge extending from the inner side to the outer side. The seal assembly includes a support ring and a spacer. The support ring and the spacer extend about the axis. The support ring is mounted to the perimeter edge by a braze joint. The spacer extends between and to a first axial spacer end and a second axial spacer end. The first axial spacer end is disposed at the support ring and the outer side.

An adding system for fire-extinguishing units includes a motor, which can be driven by an extinguishing agent stream, an adding pump, which can be driven by the motor, an adding line, and an extinguishing agent additive line. The outer wall of the working chamber of the motor is in the form of a rotation motor, which can also have the shape of a logarithmic spiral. Furthermore, the wall of the drainage housing of the motor, which is in the form of a rotation motor, can have a through-slot for letting the extinguishing agent in and / or out. Moreover, the inlet of the adding pump can be arranged such that the extinguishing agent additive can flow into the adding pump substantially parallel to the movement direction of the pistons of the adding pump. Finally, the adding pump can have an integrated relief valve.

An adding system for fire-extinguishing units includes a motor, which can be driven by an extinguishing agent stream, an adding pump, which can be driven by the motor, an adding line, and an extinguishing agent additive line. The outer wall of the working chamber of the motor is in the form of a rotation motor, which can also have the shape of a logarithmic spiral. Furthermore, the wall of the drainage housing of the motor, which is in the form of a rotation motor, can have a through-slot for letting the extinguishing agent in and / or out. Moreover, the inlet of the adding pump can be arranged such that the extinguishing agent additive can flow into the adding pump substantially parallel to the movement direction of the pistons of the adding pump. Finally, the adding pump can have an integrated relief valve.

A hydrostatic rotary machine includes (i) an inner element and an outer element which are coaxial and mounted with the ability to rotate one with respect to the other about an axis of rotation, one of these elements being a rotor and the other of these elements being a stator, (ii) a brake counter-disc which is mounted on the distribution hub, which extends radially around the distribution hub, and which is rotationally coupled to the outer element, (iii) a passive-braking piston designed to activate a brake under the effect of an elastic element and which is mounted with axial mobility with respect to the brake counter-disc, and (iv) a hydraulic brake-release chamber positioned between the brake counter-disc and the passive-braking piston.

A rotary positive displacement device comprises a housing having low and high pressure ports; first and second complementary members each having an outer surface, an axial surface and a shaft. The axial surfaces intermesh to form at least two chambers therebetween having a variable volume as each chamber orbits about a rotational axis of the first member. At least one repositionable gate comprising an aperture is selectively aligned with the high or low pressure ports to form at least one of an adjustable high pressure or low pressure opening. The high or low pressure opening extends between the first and second members and the corresponding high or low pressure port. A lower edge of the high pressure opening is positioned along an outer diameter of the outer surface of the second rotor and between the first rotor shaft and the second rotor shaft.

A rotary engine, has: housings secured to one another, the housings including a first side housing, a second side housing, and a rotor housing disposed between the first side housing and the second side housing; and a rotor rotationally received within a rotor cavity defined by the first side housing, the second side housing, and the rotor housing; wherein the first side housing, the rotor housing, and the second side housing are cooled in parallel via respective coolant passages including: a first side housing coolant passage extending through the first side housing; a second side housing coolant passage extending through the second side housing; and a rotor housing coolant passage extending through the rotor housing, and wherein the coolant passages are free of inter-passage connection between the housings.

The non-lubricated compressor (10) for compressing a gas, comprises: a stationary stator (12) with a housing (18) comprising a rotor cavity (20) delimited by a bottom wall (22), a top wall (24), and a lateral wall (26) connecting said bottom wall (22) and said top wall (24), a rotor element (14) arranged for rotation about an axis (z) within the rotor cavity (20) for compressing a gas therein, a self-supporting sealing element (16) arranged within the rotor cavity (20), wherein the sealing element (16) is made of an abradable carbon material, and comprises a wall portion (34) arranged on an inner surface of the lateral wall (26) of the rotor cavity (20).

A drilling assembly includes a particle adjusting mechanism upstream of a positive displacement motor. The motor includes a metal stator, a metal rotor at least partially disposed within the metal stator, and a motor gap defined between the sealing line of the metal rotor and the lobes of the metal stator. The particle adjusting mechanism adjusts a solid particle condition of a media flowing therethrough into a treated condition in which any remaining solid particles will travel through the motor gap without widening the motor gap to a failure gap size that causes the metal rotor to lock up or to rotate inefficiently slow. The particle adjusting mechanism adjusts the solid particle condition by removing, reducing a size, reducing a dimension, deforming, modifying a shape, dissolving, or chemically reacting at least a portion of any solid particles contained in the media. The drilling assembly is suited for high temperature wellbores.

The present invention provides a gerotor hydraulic motor. The gerotor hydraulic motor comprises a rotor-stator pair, a leakage oil channel and one or more groups of components to be cooled. The leakage oil channel guides the hydraulic oil leaked from the axial side of the rotor-stator pair to flow through the components to be cooled so as to cool the components to be cooled. The present invention guides the hydraulic oil leaked from the housing of the gerotor hydraulic motor to flow through a specially designed flow path (i.e., an internal cooling circuit) to take away the heat generated by the friction of the parts inside the housing of the gerotor hydraulic motor, thereby achieving the purpose of reducing the temperature inside the housing of the gerotor hydraulic motor and extending the service life of the gerotor hydraulic motor.

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.

The invention discloses a flexible screw drilling tool for ultra-short radius well drilling. The technical problems that an ultra-short radius flexible drilling tool is low in well drilling torque transmission efficiency, the well drilling track is difficult to adjust, and a conventional screw drilling tool is high in rigidity and is difficult to descend into an ultra-short radius well are solved. The device comprises an upper connector, a power part, a lower connector, a transmission short section and a drill bit, the power part comprises a stator shell, a stator bush and a screw rotor, the stator shell can be bent, the screw rotor is in conjugate fit with the stator bush, the stator bush and the screw rotor are made of bendable materials, a threaded flow channel is formed in the inner side wall of the stator bush, and the threaded flow channel is communicated with the lower connector. The threaded flow channel is matched with threads on the screw rotor, and when drilling fluid flows through the threaded flow channel, the screw rotor does planetary motion in the circumferential direction of the stator bush under the drilling fluid pressure difference and the conjugate action of the stator bush and the screw rotor, and the drill bit is made to rotate through the transmission short section. The torque transmission efficiency can be improved, and the drilling track can be adjusted.

The invention aims to solve the problem that an existing motor needs to be externally provided with a speed reducer in order to obtain large torque; according to the hypocycloid motor with the floating male rotor, the floating stator is arranged and matched with the inner pin roller, the outer pin roller, the rotor and the oil supply structure, oil pressure distribution in the first gap is changed, under the limiting effect of the outer pin roller, the floating stator is made to deviate and swing, the inner pin roller on the inner side of the floating stator is pushed, the inner pin roller drives the rotor to rotate under the thrust effect, and the floating male rotor is driven to rotate. Finally, the purpose that the output shaft outputs large-torque rotation is achieved. In addition, the floating stator in eccentric offset motion is arranged, so that the rotor can move around the axis of the rotor, and convenience is provided for integrating a sensor, a speed reducer and other structures at the follow-up shaft end of the rotor and the output shaft.

A rotary engine, has: housings secured to one another, the housings including a first side housing, a second side housing, and a rotor housing disposed between the first side housing and the second side housing; and a rotor rotationally received within a rotor cavity defined by the first side housing, the second side housing, and the rotor housing; wherein the first side housing, the rotor housing, and the second side housing are cooled in parallel via respective coolant passages including: a first side housing coolant passage extending through the first side housing; a second side housing coolant passage extending through the second side housing; and a rotor housing coolant passage extending through the rotor housing, and wherein the coolant passages are free of inter-passage connection between the housings.

A rubber compound for use in a stator. The rubber compound includes a fiber reinforcement, which may include fibrillated fibers in some embodiments, and short chop fibers in others. Fibers in the fiber reinforcement create a grain direction. In some embodiments, the rubber compound has a first value for 25% tensile Modulus across the grain and a second value for 25% tensile Modulus with the grain, wherein the first value is at least 10% lower than the second value. In embodiments, the fiber reinforcement may include a fiber loading of greater than 1.0 phr of fibers. In embodiments, the rubber compound may have a 25% tensile Modulus of greater than 400 psi across the grain and a 50% tensile Modulus of greater than 700 psi across the grain. In embodiments, at least some of the fibers may have a Modulus greater than 2.0 GPa.

The utility model belongs to the technical field of roller bits, and particularly relates to a high-performance ultra-high-temperature-resistant composite motor which comprises a composite double-helix power sleeve, an inner helix stator, a light hollow rotor, a locking double-helix upper sleeve and a locking double-helix lower sleeve. The locking double-spiral upper sleeve and the locking double-spiral lower sleeve are screwed into the inner spiral stator and are fixed at the two ends of the composite material double-spiral power sleeve, and the light hollow rotor is matched with the composite material double-spiral power sleeve. The cable can resist high temperature of 180-260 DEG C and low temperature of-50 DEG C, can be continuously and stably used at the high temperature of 260 DEG C, still can keep excellent mechanical performance, and can be used at the high temperature of 310 DEG C for a short time.

A rotary engine, comprising: housings defining a rotor cavity and respective coolant passages fluidly connected in parallel to a source of coolant; a rotor within the rotor cavity; and a cooling system including: a flow regulating device in fluid communication with the respective coolant passages; a heat exchanger facilitating heat exchange between the coolant and a heat-transfer medium; and a controller operatively connected to the flow regulating device to: determine, based on an engine parameter and an environment parameter of the rotary engine, a flow rate of the coolant to be injected towards the respective coolant passages to maintain the housings within a temperature range, the engine parameter indicative of a quantity of heat generated by the rotary engine, the environment parameter indicative of a quantity of heat the heat exchanger is able to transfer to the heat-transfer medium; and cause the coolant to flow towards at the flow rate.

The invention relates to a rotary drive for a drum in a winch on a support frame, which has a fluid-operated rotary piston motor that has a housing and a shaft. There are reversible freewheel couplings in a force-transfer path between the motor housing and the support frame and in a force-transfer path between the motor housing and the drum with which the motor housing can be connected to the support frame and the drum for transfer of forces. There are reversible freewheel couplings in a force-transfer path between the shaft and the support frame and in a force-transfer path between the shaft and the drum with which the shaft can be connected to the support frame and the drum for transfer of forces.

The invention relates to an underground positive displacement vane motor and a dynamic sealing characteristic analysis method thereof, and belongs to the technical field of fluid driving devices. The motor comprises a shell, a stator fixed in a shell cavity and a rotor arranged in the stator, and the stator and the rotor are in running fit; a plurality of liquid inlet cavities evenly distributed in the circumferential direction are machined between the stator and the shell, the liquid inlet cavities are communicated with an inner cavity of the stator through liquid inlet channels, and the axes of the liquid inlet channels are tangent to the rotation circumference of the rotor. A groove is formed in an opening, facing the inner cavity of the stator, of the liquid inlet channel in a semi-intrusive mode, the groove extends in the axial direction of the stator, and the groove is filled with a pin roller in a floating mode; a plurality of convex parts are arranged on the outer wall of the rotor in the axial direction, the rotor is suspended and supported in the stator cavity through the convex parts and is in running fit with the stator, and the convex parts divide the space between the stator and the rotor into a plurality of pressure cavities. The radial dynamic sealing structure parameters and the gap leakage rule of the novel blade motor can be optimized, the output characteristic of the novel blade motor is improved, and a reference basis is provided for design of the novel blade motor.

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.

Engine or turbine with virtual pistons. The present invention relates to a new thermal engine paradigm, based on an unprecedented operating principle that is a hybrid between turbine operation, a piston engine operation, an electric motor operation. Made up of very few mechanical parts like an electric motor (circular rotor, stator, lids), is configurable through electrical and electronic controls that are used to determine both the ignition advance and the detonation position with respect to the position of the part that work like a piston. In this way, operation similar to the pistons engine (with virtual or equivalent pistons) or a similar behavior to the turbine is obtained. Compression is achieved by manipulating the relative gravity to which the mixtures are subjected, through centrifugal accelerations and other correlated phenomena.

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.