33results about How to "Affect stiffness" patented technology

A catheter assembly comprises a catheter which comprises an inner shaft and an outer shaft, and at least one heat transmitting mechanism. At least one portion of at least one of the inner shaft and the outer shaft of the catheter has a predetermined longitudinal stiffness and a predetermined temperature. The predetermined longitudinal stiffness is changed when the predetermined temperature is changed. The at least one heat transmitting mechanism extends distally from the proximal end of the catheter, along the length of the catheter, to a position adjacent to the at least one portion. At least a portion of the at least one heat transmitting mechanism is constructed and arranged to conductively change the predetermined temperature of the at least one portion of the at least one of the inner shaft and the outer shaft.

The invention relates to the field of a motor, and specifically relates to a high-rotation speed and rapid heat-conduction motor. The motor comprises a stator, a rotor sleeved in the stator and a rotation shaft penetrating the rotor. The motor also comprises a shell and a base which fit with each other. The shell sleevesthe stator. Vent holes are arranged on a shell end face. A positioning and installing hole post is arranged at the center of the base. A circuit board is arranged on an outer side frame of the base. A drainage fan is fixedly arranged on the rotation shaft and is located at the outer side of the shell end face. A plastic package body is packaged out of the stator. A plastic package reinforcing connection ring is integrally connected with the end face of one side of the plastic package body facing towards the base. The plastic package reinforcing connection ring is arranged against the side wall face of the shell. Airflow at the rear end of the circuit board is sent in the motor through the circuit board and the vent holes on a base plate. Equally, the airflow between the circuit board and the base plate is sent in the motor through the vent holes on the base plate, then the heat in the motor is absorbed by the airflow, and then the airflow is rapidly exported out of the motor through vent holes on an incline reinforced hole slot wall. The whole motor has the advantages of high integrity, compact structure, convenient disassembly, low cost, high strength, high stability and low noise.

A corrosion testing device comprising a coupon holder for a sucker rod of a pump system and at least one coupon for corrosion testing, wherein the coupon holder comprises a holder body having an outer body surface and an inner contact surface, which inner contact surface is placeable on an outer rod surface of the sucker rod and defines a longitudinal body axis of the holder body, the at least one coupon is attached to the holder body and positioned at the outer body surface and at a radial coupon distance from the longitudinal body axis, the outer body surface comprises at least one guiding surface part located at a radial surface distance from the longitudinal body axis, and the radial surface distance is larger than the radial coupon distance.

The invention relates to the field of motors, and particularly to a quick heat radiation motor. The motor comprises a stator, a rotor which is sleeved in the stator, a rotating shaft which penetrates through the rotor, a housing which sleeves the stator and is provided with ventilating holes on a housing end surface, and a base which is provided with a positioning mounting hole column at the center, wherein the housing and the base are adapted with each other. The outside rack of the base is provided with a circuit board. A drainage fan is fixedly arranged on the rotating shaft at outside of the housing end surface. A plastic sealed member is sealed outside the stator. The end surface, which faces the base, of the plastic sealed member is integrally connected with a plastic sealed reinforcing connecting ring which is arranged in a manner of abutting against the sidewall surface of the housing. Air flow at the back end of the circuit board is sent into the motoring through the circuit board and the ventilating holes on a base board. Similarly, the air flow between the circuit board and the base board is sent into the motor through the ventilating holes on the base board. Heat in the motor is absorbed, and then the heat is quickly leaded out of the motor through ventilating holes of inclined reinforcing hole slot walls. The quick heat radiation motor has advantages of high integrity, compact structure, convenient detachment, low cost, high strength, high stability and low noise.

The invention aims to provide an environment-friendly engine capable of avoiding wetting walls and provided with good fuel economy. The engine comprises a piston, cylinders, oil atomizers and a spark plug. Especially, an oil atomizer is arranged in each cylinder of the engine, the oil atomizer is arranged in the centre of a cylinder cover, and the spark plug is close to an oil injection nozzle of the oil atomizer and inclines towards the oil injection nozzle of the oil atomizer, the side electrode of the spark plug deviates from the oil injection nozzle of the oil atomizer and locates in the edge of spray sprayed by the oil injection nozzle. The engine has simple structure, solves the problem of wetting walls of the prior engine, has good fuel economy and environmental protection, and accords with development tendency of the modern engine.

The invention relates to a spacer flange for a machine tool for the mounting of machine parts, comprising an outer wall (22). According to the invention, the outer wall (22) has a gridded support construction (10), giving said spacer flange a good torsional and bending resistance with low material requirements. The gridded support construction (10) can have a honeycomb or diamond-shaped structure with solid crossing webs.

The invention relates to the field of motors, and in particular relates to a stable motor. The stable motor comprises a stator, a rotor sleeved in the stator and a rotating shaft arranged on the rotor in a penetrating manner, and also comprises a shell and a base which are fit with each other, wherein the shell is sleeved on the stator and provided with vent holes in the shell end face, the base is provided with a locating mounting hole column at the center, a circuit board is erected on the outer side of the base, a draught fan is fixedly arranged on rotating shaft on the outer side of the shell end face, the stator is packaged with a plastic package body, and a circle of plastic package reinforced connecting ring arranged close to the side wall of the shell is integrally connected on the end face of the plastic package body facing the base side. Air flows at the rear end of the circuit board are sent into the motor via vent holes in the circuit board and base plate, in the same way, the air flows between the circuit board and base plate are sent into the motor via the vent holes in the base plate, then absorb heat in the motor, and then are rapidly exported from the motor via vent holes in the inclined reinforced pored groove wall. The whole motor is strong in integrality, compact in structure, convenient to dismount, low in cost, high in strength, good in stability and low in noise.

The invention relates to the field of motors, and specifically relates to a long-life safety motor. The motor comprises a stator, a rotor sleeved in the stator and a rotating shaft penetrating through the rotor, and further comprises a shell adaptively sleeved on a shell end face of the stator and provided with a vent hole and a base in the center of which a positioning installation hole post is arranged, wherein a circuit board is arranged on the outer side of the base, a draught fan is fixedly arranged on the rotating shaft and on the outer side of the shell end face, a plastic packaging body is packaged outside the stator, and a plastic packaging reinforcing connecting ring attached to the side wall of the shell is arranged on the end face of one side of the plastic packaging body facing the base in an integrated connection mode. Airflow at the rear end of the circuit board is fed into the motor via the circuit board and the vent hole in the bottom plate, the airflow between the circuit board and the bottom plate is also fed into the motor via the vent hole in the bottom plate, then the heat in the motor is absorbed, and the heat is quickly guided out of the motor via the vent hole in the inclined reinforcing hole slot wall. The whole motor has the advantages of strong integrality, compact structure, convenience in disassembly and assembly, low cost, high strength, good stability and low noise.