Abstract: The present invention provides a method for designing lobe-type rotors which enables a defined rotor and a conjugate rotor having three or more than three lobes intermeshing and conjugating to each other and by setting suitable parameters to generate curve portions of a single lobe of the defined rotor as a pattern including a curve E, an arc A, an arc B, an arc F, and a straight line Y; the main feature of the present invention is that a radius rB of the arc B is defined by following equation: r B + ( R - r B ) ? sin ? ? ? = D 2 r B = D / 2 - R ? ? sin ? ? ? 1 - sin ? ? ? moreover, the straight line Y is the external common tangent line of the arc B and the arc F, and respectively getting two tangent points therefrom to be defined as two end points of the straight line Y.

Abstract: The present invention provides a method for designing lobe-type rotors which enables a defined rotor and a conjugate rotor with three or more than three lobes intermeshing and conjugating to each other; by setting suitable parameters to generate a curve portion of a single lobe of the defined rotor as a pattern including a curve E, an arc A, an arc B, a straight line Y, an arc C and an arc F, then imaging (N-1) copy of the curve portion in which N represents number of lobes and is bigger than or equal to three, and then respectively rotating each curve portion in sequence from an appropriate degree computed by 360/N to a terminal degree computed by (N-1)*360/N; whereby to integrately form the defined rotor with three or more than three lobes.

Abstract: A double-lobe type rotor design process includes a process for forming a defined rotor and a process for forming a conjugate rotor, wherein the defined rotor and the conjugate rotor intermesh and conjugate to each other. The rotor profile curves suitably for the completed operation period of carryover, suction and exhaust could be well defined by proper parameters, thereby optimizing rotor performance, enhancing compression ratio, providing a smooth suction and exhaust process and avoiding noise and vibration.

Abstract: The present invention provides a method for designing lobe-type rotors which enables a defined rotor and a conjugate rotor with three or more than three lobes intermeshing and conjugating to each other; by setting suitable parameters to generate a curve portion of a single lobe of the defined rotor as a pattern including a curve E, an arc A, an arc B, a straight line Y, an arc C and an arc F, then imaging (N-1) copy of the curve portion in which N represents number of lobes and is bigger than or equal to three, and then respectively rotating each curve portion in sequence from an appropriate degree computed by 360/N to a terminal degree computed by (N-1)*360/N; whereby to integrately form the defined rotor with three or more than three lobes.

Abstract: A composite heat exchanger having functions of air cooling and spray cooling, includes two base plates, a fin group between the base plates, and a flow conduit. The fin group includes a plurality of fins. Each fin is defined with a plurality of receiving holes. The flow conduit parallelly extends through the receiving holes and surrounds an outside of the fins whereby the outside surface of the flow conduit surrounding the fins directly contacts atomized heat exchange media for heat transfer through phase change.

Abstract: A coaxial dynamical system includes a motor having a transmission shaft, a dynamical transmission member rotatably connecting to the transmission shaft, and a magnetic driving mechanism connected between the transmission shaft and the dynamical transmission member. The magnetic driving mechanism includes a sleeve assembly, a sleeve fixing member, a magnetic coupler and a magnetic driver. The magnetic coupler has a first multi-pole magnet and is positioned next to the transmission shaft. The magnetic driver is fixed to the transmission shaft corresponding to the magnetic coupler and has a second multi-pole magnet with an opposite polarity relative to the first multi-pole magnet of the magnetic coupler. When the dynamical transmission member is fails, the magnetic driving mechanism is prevented from adversely affecting the normal working of the transmission shaft through the magnetic driver by disconnecting from the magnetic coupler.

Abstract: A composite heat exchanger having functions of air cooling and spray cooling, includes two base plates, a fin group between the base plates, and a flow conduit. The fin group includes a plurality of fins. Each fin is defined with a plurality of receiving holes. The flow conduit parallelly extends through the receiving holes and surrounds an outside of the fins whereby the outside surface of the flow conduit surrounding the fins directly contacts atomized heat exchange media for heat transfer through phase change.

Abstract: A coaxial dynamical system includes a motor having a transmission shaft, a dynamical transmission member rotatably connecting to the transmission shaft, and a magnetic driving mechanism connected between the transmission shaft and the dynamical transmission member. The magnetic driving mechanism includes a sleeve assembled, a sleeve fixing member, a magnetic coupler and a magnetic driver. The magnetic coupler has a first multi-pole magnet and is positioned to the transmission shaft. The magnetic driver is fixed to the transmission shaft corresponding to the magnetic coupler and has a second multi-pole magnet with an opposite polarity relative to the first multi-pole magnet of the magnetic coupler. When the dynamical transmission member is failed, the magnetic driving mechanism prevents from adversely affecting the normal working of the transmission shaft through the magnetic driver disconnecting from the magnetic coupler.

Abstract: A pump for boosting and transporting a liquid, includes a housing, a gear rotor device, at least one cover and a motor. A transportation chamber is defined in the housing. An inlet and an outlet are defined in the housing and respectively in communication with the transportation chamber. The gear rotor device is received in the transportation chamber. The gear rotor device includes first and second gears meshing with each other. The at least one cover covers and seals at least one side of the housing. The motor is mounted on one cover with a shaft thereof rotatably connecting with one of the first and second gears. Through a full compression by the gear rotor device, the liquid transportation is in a positive displacement and the liquid is pressurized by the gear rotor device whereby the pump has high head and therefore efficiently transports the liquid.

Abstract: The present invention provides an improved rotor mechanism to improve the mechanism of the intermeshing displacement rotor and valve rotor. The main feature is that the displacement rotor and the valve rotor provide the operation curve from the carryover period to intake period, which includes a pair of convex curves with different radius merging smoothly with each other, thereby providing a smooth transference of the intake, exhaust, and carryover, etc. and avoiding noise and vibration during the working process. Moreover, the displacement rotor and the valve rotor provide the operation curve from the starting of exhaust to the period of ending, which is defined by an arcuated surface thereby providing a rotor mechanism with great diplacement transference and high compression ratio.