125 results about "Return work" patented technology

A piston compression system converts energy from a conventional combustion cycle engine driving a piston to displace a working gas for flow through a turbine for output power. The working gas is derived by diverting a portion of the charge during combustion at near peak combustion pressure (PCP) into a closed working volume. The working gas is maintained at high pressure within the working volume. The working volume has a first displacement compartment and a second displacement compartment, a supply manifold connected for receiving pressurized working gas alternately from the first and second compartments and connected to an inlet of the turbine, and a return manifold connected to an outlet of the turbine and alternately returning working gas to the second and first compartments. The engine is configured with first and second pistons housed in first and second combustion cylinders respectively powering a first displacing surface for displacement of working gas in the first compartment and a second displacing surface for displacement of working gas in the second compartment.

Apparatus for stripping a belt in conveyor belt assemblies includes a stripping element on a system carrier, the stripping element having a stripping lamella on a lamella holder, the stripping lamella contacting the belt in a peeling position, wherein the stripping element has a swivel mount coupled to the lamella holder and a swivel axis parallel to a plane of the belt, a spring for pressing the stripping lamella against the belt such that the lamella holder in the peeling position is swiveled about the horizontal axis, and when obstructions adhering to the belt impact the stripping lamella, the lamella holder deflects and returns a working position, wherein the stripping lamella is swivel mounted at the lamella holder by a swivel mount having an axis parallel to a plane of the belt and is held and spring biased by a top spring is counter to the bottom swivel mount spring.

A cooler of working oil is prepared as forming said cooler by connecting multiple heat conduction tubes in parallel way to form heat radiation unit, setting formed cooler between inlet chamber at lead in port of working oil sent from oil pressure device and outlet chamber at send out port of working oil sent from oil pressure device, connecting buffer chamber with air storage unit through to inlet chamber for utilizing air in air storage unit to absorb pulsation and pressure rise of working oil at inlet chamber in order to cool working oil stably.

The invention relates to a survivability method based on identification of reliable service in an optical communication multi-domain optical network, which comprises the following steps that: 1) a single-domain route controller forms an interoperation control plane by automatically discovering and searching a peer route controller of the single-domain route controller by neighbors; 2) the route controller realizes topology abstraction belonging to a single domain to obtain and store aggregation routing information; 3) a source node receives service connecting requests; 4) the source node sends a route establishing request to the route controller positioned in the domain; 5) a source route controller operates an end-to-end work /protection routing algorithm based on conditional risk separating degree on a convergent network; 6) the source route controller returns a request response message to the source node and initiates a resource reservation request; 7) the source node adds the returned work/protection route into an RSVP-TE PATH message which performs path request along an appointed route; 8) a wavelength is selected through a wavelength assignment algorithm; and 9) the message is returned along the prior path of the PATH message to complete the resource reservation of the source node. The method has the advantages of high network availability and high resource utilization rate.

A heat pipe having a wick structure for efficiently returning working fluid to an evaporating portion is provided. The heat pipe comprises a container 2 sealed at its both ends, a working fluid encapsulated in the container, and a wick structure 10 covering an inner face of the container. The wick structure 10 includes a porous wick 11 of a sintered metal powder, and a fiber wick 12 buried in the porous wick. A capillary pressure of the fiber wick 12 is weaker than that of the porous wick 11, and a pressure loss of the fiber wick 12 is smaller than that of the porous wick 11.

The invention relates to a tool arc girnIt mainly comprises the body, the grinding head assembly, cross sledge, oblique angle, return working platform. It features in the grinding head and cross sledge connected to or installed on the body, oblique angle installed between the cross sledge and the return working platform which installs the sub crossing sledge with cutter carrier on it. The axial core of the oblique structure ranges within the 10 mm of the extended radius of the return shaft core and one half of the outer radius of the end surface of the sand wheel. It has strong rigidity, fine grinding quality, convenient adjustment, applicable for fine grinding.

A method for changing power states of a computer sends a shutdown event to all running applications before the computer goes to sleep to prevent data loss in a sleep state of the computer. Furthermore, the method stores a system memory image into a flash memory before the computer goes to the sleep state. Moreover, the method restores the system memory image from the flash memory to the system memory when the computer exit the sleep state to come back the work state.

The invention discloses an automatic board card detecting device of a direct current power transmission control protective system, which comprises a work station, a detecting host and a detecting chassis; the work station comprises a display and a host for issuing a control command to the detecting host, and receiving the detecting outcome from the detecting host; the display displays a man-machine interface under the control of the host; the detecting host comprises a first power supply board card, a host board card and a first communication board card; the host board card controls the detecting chassis to perform corresponding detecting according to the command of the work station and returns the detecting outcome to the work station; the first communication board card is upwards communicated with the work station and downwards communicated with the detecting chassis under the control of the host board card; and the detecting chassis comprises a second power supply board card, a second communication board card and a detecting assisting board card connected with a detected board card by an interface wire harness. The automatic board card detecting device of the direct current power transmission control protective system can automatically and fully detect the hardware, software and function of the plug-in board card, and meets the various requirements on reliability, safety and economy.

The invention, which belongs to the technical field o the agricultural machinery, relates to a coaxial-shearing type banana straw crushing and returning machine. A hitching device, a driving device, a coaxial shearing device and a tackling device are successively arranged on a rack from top to bottom. Travelling devices are arranged at two sides of the rack. The coaxial-shearing type banana straw crushing and returning machine is connected with a tractor by the hitching device arranged at the front end of the upper side of the rack; the power of the tractor is transmitted to an inner rotating shaft and an outer rotating cylinder of the coaxial-shearing device by the driving device, thereby realizing reverse rotation of the inner rotating shaft and the outer rotating cylinder of the coaxial-shearing device and thus driving an inner shaft rotating knife body of the inner rotating shaft and an outer cylinder rotating knife body of the outer rotating cylinder to cut and crush banana straws. According to the invention, the coaxial-shearing device in reverse rotation is used for crush the banana straws in the banana growth field. The overall structure is simple and compact; a fiber winding phenomenon is reduced during working; the high-efficiency banana straw crushing and returning are realized; pollution caused by straw corrosion in field can be avoided; and the machine is suitable for the banana straw crushing and returning work at the banana producing area.

A low power mode and feedback arrangement for a switching power converter. Two or more main power switches, such as transistors, transfer energy from a supply to load by their opening and closing. When the load requires a relatively low power level, this condition is detected. In response, one or more of the transistor switches is disabled from switching and the reduced power requirements of the load are handled by the remaining one or more transistor switches. As a result, switching losses are reduced. This is because parasitic gate capacitance and on-resistance associated with the disabled switches no longer consume power from the power source. The invention provides significant efficiency advantages during periods when the load draws a low level of power. This is especially useful for battery-powered devices which may operate in a low power mode for extended periods of time, such as standby mode as in a portable telephone. This is because the prevention of power loss in may contribute considerably to operating time before battery re-charging is needed. However, when additional power is required, one or more previously disabled switches may be brought back into play to ensure that the power requirements of the load are met. In an audio amplifier having a H-bridge arrangement for providing a differential output signal, the invention also provides a feedback path from only one side of the load. This reduces distortion associated with open-ended operation.

A tencent cloud-based on-line measurement and control method for intelligent building lighting comprises the following contents of constructing an intelligent cloud control platform by tencent cloud for managing and monitoring each building control terminal and enabling a user to remotely control and view a real-time working condition; communicating a building terminal controller arranged in each building with the cloud control platform by a 4G wireless link, controlling a lamp branch controller according to a command of the cloud control platform, and sending LED lamp data to the cloud control platform in real time; controlling an LED lamp by the lamp branch controller arranged in each building according to a command of the building terminal controller, and returning working condition data of the LED lamp in real time; installing monitoring modules in a plurality of LED lamps arranged in the building for monitoring currents, voltages, temperatures and inclination angle data of the LED lamps; and achieving remote on-line control of building lighting by an APP program of a remote terminal. By the on-line measurement and control method, the LED lamps of a plurality of buildings can be simultaneously monitored and controlled, the on-line measurement and control method is low in cost, and a potential risk of a network is low.

A component supply device including a component storage device that stores a plurality of components, a component support member on which the components from the component storage device are dispersed, and a component return device that returns the components on the component support member to the component storage device, is provided. In a case where the necessary number of components exceeds the number of holdable components, return work of the components to the component container and dispersal work of the components to the component support section are carried out prior to holding the components from the component support section by the component holding tool.

The invention discloses a straw deep-burying wedge type hollow plough, and aims to provide a straw deep-burying wedge type hollow plough which is large in straw returning amount, small in number of working procedures and higher in reliability. The straw deep-burying wedge type hollow plough comprises a straw conveying packing auger, and further comprises a wedge-shaped hollow plough body, a straw pressing wheel, earthing disks and an earth breaking cutting edge, wherein the wedge-shaped hollow plough body is a perpendicular earth breaking cutting edge formed by connecting thin-wall plates onto two sides in a forward arc surrounding manner according to a flowing line; a cavity shape is formed between the thin wall plates on two sides; the rear ends of the thin wall plates on two sides form an outward opening; the straw pressing wheel is transversely arranged between the thin wall plates on two sides in a rotatable manner; the earthing disks are arranged on the outer sides of the rear ends of the thin-wall plates on two sides in a bilateral symmetry manner; concave arcs are formed at the upper edges of the front parts of the thin-wall plates on two sides; the straw conveying packing auger is transversely arranged in the concave arcs; a lower material discharging opening of the straw conveying packing auger corresponds to the cavity. The straw deep-burying wedge type hollow plough is applicable to straw deep-burying returning work.

The invention relates to a tundish nozzle quick-change hydraulic control system of a continuous casting machine, which comprises a plurality of drive oil cylinders, wherein piston rods of the drive oil cylinders are respectively connected with nozzle gates; push working cavities of all the drive oil cylinders are respectively communicated with an oil opening A of a double throttle check valve by hydraulic pipelines; return working cavities of all the drive oil cylinders are respectively communicated with an oil opening B of the double throttle check valve by hydraulic pipelines; oil supply openings P of all the double throttle check valves are respectively communicated with an oil opening A of a three-position four-way electromagnetic valve by hydraulic pipelines; and oil discharge openings T of all the double throttle check valves are respectively communicated with oil openings B of the three-position four-way electromagnetic valves by hydraulic pipelines. The invention aims to provide the tundish nozzle quick-change hydraulic control system of the continuous casting machine, which can greatly improve the running reliability of equipment, reduce or prevent serious damage of equipment and product scraping caused by that the nozzle gates can not move to the position accurately, lead the yield of the production line of the continuous casting machine to keep stable and enable the quality of products to have higher guarantee.

The embodiment of the invention discloses a novel straw returning machine, and relates to the field of agricultural mechanical equipment. The novel straw returning machine comprises a locomotive, a harvesting mechanism, an earth cutting mechanism, a storage box and a conveying mechanism, wherein the harvesting mechanism is arranged at the front end of the locomotive, and the earth cutting mechanism is fixedly connected to the rear end of the locomotive; the top of the locomotive is fixedly connected with the storage box; and a stirring mechanism is arranged on the storage box. The novel strawreturning machine is reasonable in structure, soil turning work can be conducted while straw is harvested, straw returning work can be completed at a time, time and labor are saved, the labor intensity of workers is relieved, the working efficiency is improved, the smashed straw can be effectively prevented from being accumulated in the storage box through the stirring mechanism, and the smashed straws can be uniformly scattered on the ground; and when an adjusting disc is rotated, a furrow opener can be driven to move up and down, so that the purpose of adjusting the furrowing depth is conveniently achieved, and the practicability of the device is further improved.

The invention discloses an LED energy-saving illuminator capable of removing dust automatically. When normal illumination is required, illumination is controlled through a lamp tube stepless light-adjustment rotary switch. Luminance required for illumination is adjusted freely. A controller is internally provided with a motor work time-delay circuit module. When the dust needs to be removed, a motor switch is switched on; a motor rotates to work, and a threaded rotating shaft is driven to rotate, so that a rotating nut travels on the threaded rotating shaft; when touching a first travel switch or a second travel switch, the rotating nut moves back and forth automatically to perform the returning work; when the rotating nut travels, a circular ring body is driven to travel synchronously through a short connecting piece; the dust on an LED energy-saving lamp tube is scrapped off through a brush on the inner wall of the circular ring body, and automatic dust removal (lamp tube cleaning) is achieved; and after the dust is removed, original luminance is maintained. The lamp tube stepless light-adjustment rotary switch is used for adjusting the voltage of a power source, the required luminance is achieved by lowering the voltage, and electric quantity can be saved. When weak light is needed for illumination, a certain lamp bead or part of lamp beads are controlled to illuminate through a lamp bead switch, and electric quantity can be saved.

The invention discloses a spiral mill type ditching straw deep-burying chopper, and belongs to the technical field of an agricultural machine. The spiral mill type ditching straw deep-burying chopper comprises a frame, a front drive box, a drive device, a back drive box, and a stubble cleaning device, a conveying device, a round disk ditching device, a spiral mill ditching device, a blanker and an earthing device which are orderly installed on the frame from the front end to the back end; a stubble cleaning shaft of the stubble cleaning device is connected to a power output shaft of the front drive box, the conveying device is installed slantly, and both ends are respectively connected with the stubble cleaning device and the blanker; the spiral mill ditching device is installed beneath the back drive box; the round disk ditching device is located in front of the spiral mill type ditching device; the round disk ditching device cuts off soil, and reduces resistance; the spiral mill type ditching device is used for ditching work; the blanker is located between the spiral mill type ditching device and the earthing device. The spiral mill type ditching straw deep-burying chopper can complete stubble cleaning, straw collection, burying, repression, drought soil preparation, and straw returning works, and reach the effect of deeply burying straw, returning field, and enhancing the soil organic matter.

The invention relates to the technical field of ground-source heat pumps and discloses an oil return system of a straight expanding ground-source heat pump system with double injectors and an oil return method thereof. The oil return device of the system comprises a compressor, an oil separator, a condenser/gas cooler, an intermediate heat exchanger, a first injector, a gas-liquid separator, a first electromagnetic valve, a second injector, a second electromagnetic valve, a throttling valve, a downhole heat exchanger, an oil return pipe, an oil level sensor and a controller. By applying the injectors to the straight expanding ground-source heat pump system, a high pressure refrigerant working medium at the outlet of the intermediate heat exchanger in an oil return working condition is injected by the second injector to be collected in liquid state lubricating oil in a U-shaped bend of the oil return pipe. Under the circumstance of no external input power, the lubricating oil returns tothe compressor smoothly, so that the problem of oil return of the compressor of the straight expanding ground-source heat pump system in a heat supply working condition can be solved, and the throttling loss can be also reduce and the input power of the compressor is saved. The system is suitable for all refrigerant working media.

The invention provides a self-service ball borrowing-returning machine which comprises a rack. The rack is of a closed structure, a display panel is arranged at the upper end of the middle position of a front panel of the rack, an IC card reader is fixed under the display panel, a ball outlet and a ball returning port are also formed in the left side and the right side of the display panel respectively, a ball returning mechanism is arranged on the inner side of the ball returning port, and a ball outlet mechanism is arranged on the inner side of the ball outlet. The self-service ball borrowing-returning machine achieves self-service gymnasium ball borrowing-returning work, a borrowing-returning procedure is simplified, and convenience is brought to free ball use and effective utilization.

The invention discloses a control method for automatic warehousing and returning of books. A user firstly puts the books which need to be returned in one of book receiving mechanisms, ID (identity) number information acquired book by book of the books is sent to a terminal server by the book receiving mechanism so as to modify borrowing state information of each book, and the books are sent out toone of carrying dollies on a transfer track by the book receiving mechanism; after being received by the carrying dolly, the books are scanned to acquire the ID number information of each book, the acquired ID number information of each book is sent to the terminal server by the carrying dolly so as to search storage position information of each book, and the books each are sent to the front of an appointed bookshelf by the carrying dolly according to the storage position information of each book; and finally, the carried books are each pushed out and sent to a book receiving module on the bookshelf by the carrying dolly, and after being received by the book receiving module, the books are scanned so as to acquire the ID number information of each book. By utilizing the control method forautomatic warehousing and returning of the books disclosed by the invention, the books in a library can be intelligently managed, and book returning work is automatically competed; and the control method has the characteristics of management automation and high working efficiency.

The invention discloses a switch-on angle and switch-off angle adjusting method for a switched reluctance motor. In excitation, flow-continuing and flow-returning working periods of the switched reluctance motor, currents and voltages of the three periods are measured and transmistted to a single-chip microcomputer; an energy recovery efficiency is calculated through the single-chip microcomputer; the energy recovery efficiency is compared with an optimal-parameter table stored in the single-chip microcomputer; and according to the comparison result, switch-on and switch-off angles are adjusted through a drive circuit so that the energy recovery efficiency is approximate to the maximum energy recovery efficiency. The switch-on angle and switch-off angle adjusting method for the switched reluctance motor is high in practicality so that the motor is enabled to reach the maximum energy recovery efficiency at a significantly high speed.

The invention discloses a carbon dioxide air source heat pump system that avoids the impact of compressor liquid return, and belongs to the field of carbon dioxide heat pumps. The existing carbon dioxide air source heat pump system has attenuated heating capacity, decreased energy efficiency, and poor oil return in the existing carbon dioxide air source heat pump system. The invention adds an oil return type gas-liquid separator and an oil return casing evaporator type air cooler to the existing carbon dioxide air source heat pump system. When the system performs oil return work, the liquid oil and refrigerant in the oil return pipeline Absorb the heat from the oil return casing evaporator type air cooler to evaporate the oil, atomize the liquid refrigerant and turn the liquid refrigerant into gas, avoid the damage of the compressor due to the impact of liquid return, prolong the life of the compressor and improve the stability of the system sex, reliability.