Sun | Date: 2015-08-05
A reciprocating low-speed heavy-load hydraulic pump with a variable action area comprises a plurality of hydraulic cylinder units (3) and moving members (1, 2). Two ends of the hydraulic cylinder units (3) are separately connected with the moving members (1, 2) via mechanical structures. The moving members (1, 2) move relative to each other. The hydraulic cylinder unit (3) consists of a hydraulic cylinder (4), a reversing valve (5) and a one-way valve (6). The hydraulic cylinder (4), the reversing valve (5) and the one-way valve (6) are connected with each other via hydraulic pipelines. Based on different magnitudes of driving force, the hydraulic pump can proactively configure and form different combinations of hydraulic cylinder units, and further adjust the size of an equivalent action area. Therefore, even if the magnitude of the driving force changes, it can be ensured that the hydraulic pump consisting of hydraulic cylinder units outputs oil liquid with a relatively stable pressure for use by a subsequently connected system. The reciprocating low-speed heavy-load hydraulic pump with a variable action area is advantageous in high conversion efficiency, a simple system structure and good working stability.
Sun | Date: 2015-04-15
A method and apparatus for generating a dynamic authorization code, and a payment transaction method and system. The method for generating a dynamic authorization code comprises: creating at least one payment card account, each payment card account being corresponding to a piece of payment card information; generating a dynamic authorization code, and establishing and saving a correspondence between the dynamic authorization code and the payment card account; and sending the dynamic authorization code to a user terminal for saving. Through technical solutions provided in embodiments of the present invention, a dynamic authorization code is generated, and a correspondence among the dynamic authorization code, a payment card account and payment card information is established. When a payment transaction is performed, a user can trigger a server to complete the payment transaction as long as the user provides the dynamic authorization code, and the dynamic authorization code can be updated or terminated at any time, so as to effectively improve security of the user data and the payment transaction.
Sun | Date: 2016-02-24
A locking apparatus, a vehicle safety belt adjustment apparatus, and a vehicle safety belt. The locking apparatus used for controlling a movable chain, strip or strap-shaped object (71) comprises a support frame; a roll shaft (6) with a friction surface or a sprocket pitch slot (64), the roll shaft (6) being fixedly connected to a support rod (66), and one end of the support rod (66) being pivotally connected onto the support frame; a pawl (62) disposed above the roll shaft (6) and capable of rotating around one end; and a pressurization body (3) opposite to the roll shaft (6) along a transverse direction, thereby forming a roll gap between the roll shaft (6) and the pressurization body (3). The roll shaft (6) can freely rotate when the roll shaft (6) is in a middle state. When the roll shaft (6) is forced to downwards pivot until a ratchet disposed on a contact base (65) engages with a ratchet (6302) of the roll shaft (6) to prevent the rotation of the roll shaft (6), the object (71) can be locked. When the roll shaft (6) is forced to upwards pivot until the ratchet (6302) of the roll shaft (6) abuts against the pawl (62), the roll shaft (6) can still rotate; when the object (71) changes the direction to downwards move, the pawl (62) engages with the ratchet (6302) of the roll shaft (6) to prevent the rotation of the roll shaft (6) and loses the engagement with the ratchet (6302) of the roll shaft (6) as the roll shaft (6) downwards pivots. The pressurization body (3) may comprise a pair of swing rods which have one ends hinge-connected with each other and can be bent.
Jiangxi Electric Power Research Institute, Pei, Sun, Zhang, Liu, Hu and Zhu | Date: 2015-01-07
A multi-node synchronous on-site test method, the method comprising: using GPS time as time reference, and conducting synchronous on-site tests on the devices to be tested and systems distributed at different places at an appointed time; controlling the synchronous phase control simulation devices distributed at multiple nodes via a synchronous test control center; within a uniform time section, synchronously outputting secondary side AC simulation signals, and simulating various actual operating conditions, thus achieving the detection of the monitoring and control performances of various dynamic monitoring and control systems, and ensuring the normal functions of the systems. The method of the present invention is able to conduct multi-node dynamic simulation test with synchronized GPS time, and achieves the detection of large-area multi-node monitoring and control systems. The present invention is suitable for the test of a wide area measurement system (WAMS) function, the simulation test of a damping control function, the simulation test of transiently stable state analysis and control functions, the simulation test of voltage stabilization and control functions, the simulation test of an islanding control function, the simulation test of wide area protection system functions and the like.
Sun | Date: 2015-07-29
Disclosed is a generator wherein a rotary shaft is rotatably supported by a rotary shaft rest, and an inner casing is formed in a cylindrical hollow shape in such a way that one side thereof is fixedly engaged to the rotary shaft, thus rotating by the rotary shaft, and another side thereof is engaged to a rotary shaft rest by an inner casing engaging support member which includes a thrust bearing, and a plurality of through holes and ventilation holes are formed at the side surfaces and outer circumferential surfaces of the inner casing and the outer casing.
Zhou, Sun and Lei | Date: 2016-07-20
A pressure swing adsorption apparatus comprises: a housing (1) with an arc-shaped inner surface (10), the housing (1) being arranged with at least one gas inlet (12), at least one exhaust port (14) and at least one gas outlet (16) for discharging the separated gas; a rotor (2) arranged in the housing (1), at least two contact ends (21, 23, 25) being arranged on the rotor (2) for maintaining a non-stop sliding contact with the inner surface (10) of the housing (1), individual cavities, i.e., air cavities between the adjacent contact ends (21, 23, 25) and formed between the external surface of the rotor (2) and the inner surface (10) of the housing (1), and each air cavity being separated by the contact ends (21, 23, 25); adsorption chambers (32, 34, 36) set inside the rotor (2) as parts of the rotor (2) and rotated along with the rotor (2), molecular sieves being loaded in the interior of the adsorption chambers (32, 34, 36), and the adsorption chambers (32, 34, 36) being provided with screen openings for connection with the air cavities.
Zhou, Sun and Lei | Date: 2016-09-21
A membrane separation apparatus comprises: a shell (1), wherein an inner surface (11) of the shell is an arc surface, and at least one medium inlet and at least one medium outlet used for discharging a medium that is separated are arranged on the shell (1); a rotor (2) arranged inside the shell (1), wherein at least two contact ends (24, 26) that are always in slidably contact with the inner surface (11) of the shell are arranged on an outer surface of the rotor (2), the outer surface of the rotor (2) and the inner surface (11) of the shell form sealed separate cavities between the adjacent contact ends (24, 26), and an empty part inside the rotor (2) is used as a medium storage chamber; and separation chambers (32, 34, 36) arranged inside the rotor (2), wherein insides of the separation chambers (32, 34, 36) are filled with a membrane (6), one-way valves corresponding to the separate cavities are arranged on outer walls of the separation chambers (32, 34, 36) for communicating with the separate cavities, medium outlets corresponding to the medium storage chamber are arranged on inner walls of the separation chambers (32, 34, 36), and the medium storage chamber is communicated with the medium outlet of the shell (1).
Sun | Date: 2016-02-03
An electronic speech aid device (100, 200) to be worn by a wearer, includes an ear plug (1), a micro-microphone (31), a processing module (4) and a micro-speaker. The ear plug (1) is to be inserted into an acoustic meatus of the wearer. The micro-microphone (31) is disposed on the ear plug (1) for receiving a larynx sound, which results from attempt by the wearer to speak, from a larynx of the wearer through the acoustic meatus and for converting the larynx sound into a larynx-sound signal. The processing module (4) is electrically connected to the micro-microphone (31) for receiving and processing the larynx-sound signal to output a voice signal. The micro-speaker (51) is electrically coupled to the processing module (4) for receiving and outputting the voice signal.
Sun | Date: 2016-11-30
A superposition principle of waveform based on conceptions of waveform continuity and flexible regulation of voltage proposes three concepts, respectively being flexible AC transformation, flexible power transmission and transformation and flexible voltage regulation; proposes three new technologies, respectively being a transient impedance technology, a flexible stepless voltage regulation technology and a flexible stepped voltage regulation technology; proposes three new products, being an AC voltage regulating electronic switch, a transient impedance transformer and a high-speed voltage regulating transformer; proposes six high-voltage power grid connection methods, being a power grid connection method type of a transient impedance transformer, a power grid connection method of a transient impedance step up auto transformer and the like; and proposes a new reactive compensation connection method for a reactive compensation device to be in series or parallel connections at a terminal of a secondary outgoing wire of a main transformer of a series voltage regulating transformer. The invention can be applied to high voltage or ultra-high voltage AC-DC power transmissions, other systems needing to be safely, efficiently and synchronously controlled, and systems needing large capacity stepless voltage regulation.
Sun and Zhao | Date: 2016-01-20
The present invention provides a spray-dried powder comprising vancomycin hydrochloride, and an industrial manufacturing method thereof. The industrial manufacturing method comprises: using a vancomycin hydrochloride solution with the purity of not lower than 95%, adding a stabilizing agent and a solubilizing agent in the solution to increase the stability and the concentration of the solution, concentrating the vancomycin hydrochloride composite solution to 20%-30wt.%, and performing spray drying in this concentration to obtain a vancomycin hydrochloride spray-dried powder with the impurity B of lower than 1.5%.