33results about How to "Small working volume" patented technology

A microfluidic system for causing perturbations in a cell membrane, the system including a microfluidic channel defining a lumen and being configured such that a cell suspended in a buffer can pass therethrough, wherein the microfluidic channel includes a cell-deforming constriction, wherein a diameter of the constriction is a function of the diameter of the cell.

The invention provides a vapor-core pump with an impeller central pressure supplement regulator. The impeller central pressure supplement regulator enables the vapor-core pump to operate under higher performance and efficiency. By the aid of the impeller central pressure supplement regulator for controlling front and back pressures at a valve port of an inlet throttle valve, cavitation caused by excessively low central impeller pressure can be avoided or inhibited effectively, and the damage caused by cavitation can also be avoided.

This invention relates to a gear-type contractor, which comprises motor, gear-type compressing part used for compressing coolant flow from evaporator by the driving of motor, and gear-type swelling part used for swelling the reflow coolant after flowing contractor and chiller; wherein the gear-type compressing part comprises main bearing, compressed cylinder, outer gear, inner gear and compressed plate; the gear-type swelling part comprises swelling plate, swelling cylinder, outer gear, inner gear, and supplementary bearing; the inner gears of compressing part and swelling part are mosaic connected with the rotation shaft of the motor. Said invention can increase the coefficient of performance of refrigerating system, and can use carbon dioxide to replace traditional coolant, which is benefit for environmental protection.

A vibration mechanism and its components include a vibration generating part, a vibration driving part and a vibration acting part. The vibration generating part includes a knocking part, a rotating shaft and an eccentric part. One end of the striking part is limited in the bracket groove, and one end of the rotating shaft is connected with the eccentric part. The vibration driving part is used to drive the eccentric, and the vibration acting part is covered on the vibration generating part. The vibrating mechanism of the present invention can be directly installed on the handle assembly of the existing shaver to realize local massage, and after disassembly, the handle assembly can also be used for shaving, realizing "one machine with multiple functions".

A small-sized full electric non-excavation horizontal oriented drill rig belongs to a non-excavation construction machinery for paving, replacing and repairing various underground pipelines. The technical key points are that the small-sized full electric non-excavation horizontal oriented drill rig comprises a cutting drill bit (1), a drill bit rotary cutting driving device, a buffer device, a soil rear postposition spiral conveying device and a drill rod propelling pulling-back device; the cutting drill bit (1) is of a hollow drill bit; the drill bit rotary cutting driving device is arranged behind a cutting drill bit conical drum (2); the buffer device is connected behind the drill bit rotary cutting driving device; the soil postposition spiral conveying device is arranged on the axis of the cutting drill bit (1); the rear end of the last section of the soil postposition spiral conveying device is connected with the drill bit propelling pulling-back device connected with a power supply. The output of the postposition spiral soil cutting adopts full electric driving, the structure can be simplified, and the production cost is reduced; a work pit is firstly excavated during work, and the holing and pulling-back are performed at one step in the horizontal direction; the guiding and hole expanding processes are omitted, the construction progress can be accelerated, the construction efficiency can be improved, and the small-sized full electric non-excavation horizontal oriented drill rig is widely used for paving and updating urban and rural underground pipelines.

This invention relates to a gear-type contractor. The compressing part comprises main bearing, compressed cylinder, outer gear, inner gear and compressing plate; wherein the main bearing is fixed below the driving part, and the ring form compressed cylinder is set below the base bearing and connected together; the outer gear is set inside the cylinder with rotary form, and the inner gear is set inside the outer gear, which will receive dynamic from motor and engage with outer gear to rotary, compressing coolant; the compressing plate is set below the compressed cylinder and connected with it; the auxiliary induction pipe which will send the coolant to inner space of the outer gear, and the output pipe which will send the compressed coolant to chiller can be set in two of the base bearing, the compressed cylinder or the compressing plate. Said invention can increase the coefficient of performance of refrigerating system, and can use carbon dioxide to replace traditional coolant, which is benefit for environmental protection.

The invention discloses a self-floating type impeller aerator, which comprises a buoy impeller (1), wherein the buoy impeller (1) is provided with a power device (3) through a connecting support plate (2), and comprises a sealing buoy (11) and blades (12), the power device (3) consists of a vertical motor (31), a speed reduction mechanism (32) and a rotary flange (33), the integral blade (12) is in an L shape, and is uniformly provided with a plurality of water division holes (6) and a water division groove (7), and the blades (12) are fixedly and adjustably connected with the sealing buoy (11) by virtue of the blade bottom plate (13). The aerator not only solves the problems of large size of aeration equipment and inconvenient production, transportation, assembly and use as the traditional impeller aerator uses the bearing devices, such as floating balls, to bear the power device of the aerator, but also effectively solves the problems of single type of traditional blade and unable aeration, water tillage and surging.