6results about How to "Improve mechanical efficiency" patented technology

This utility model relates to a hydraulic shaft thrust bearing, which includes: a thrust cylinder sleeve, a thrust cylinder core, a hydraulic chamber, an annular groove reservoir, a hydraulic pump, a liquid medium, etc. This utility model patent applies liquid pressure technology to the axial bearing, avoiding the hard contact between the thrust plate and the balls or rollers in ordinary thrust bearings, greatly reducing the motion resistance around the shaft and improving the mechanical efficiency of the rotational motion around the shaft.

The application discloses a polymer electrolyte with three-dimensional network fillers and a preparation method thereof, and belongs to the technical field of lithium ion batteries. The application is based on a synergistic design concept of premixed filler guiding in-situ network growth, and hydrolysis of tetraethyl orthosilicate (TEOS) is regulated by formic acid. The premixed nano-SiO2 particles are used as nucleation sites to induce directional growth of SiO2 generated in-situ on the surface of the nano-SiO2 particles and mutual crosslinking, and the fillers form a three-dimensional crosslinked network structure in the polymer matrix. The application overcomes problems of easy agglomeration of fillers, incomplete crystallization inhibition and incomplete crosslinking of a single in-situ growth network due to lack of nucleation sites in a traditional physical blending method, and realizes synergistic enhancement of mechanical strength and ion transmission efficiency.

An electronic oil pump external rotor suspension device includes an external rotor rotation support assembly, which comprises an external rotor and the rotation support assembly; the external rotor and the rotation support assembly are an integral structure or a separate structure; the external rotor is embedded and fixed on the inner surface of the rotation support assembly; the outer surface of the rotation support assembly is disposed inside the oil pump; the electronic oil pump includes a pump cover, a drive shaft, a pump body, a motor, a control unit, and a bottom cover; it is provided with a double-end face oil inlet and double-end face oil outlet structure; the connection between the pump cover drive shaft and the inner rotor is a press-fit drive, a flat drive, or a spline drive.

This invention provides a double-sided asymmetrical rotor profile for a high-pressure twin-screw compressor, comprising a male screw rotor and a female screw rotor. The profiles of the male and female rotor teeth mesh with each other and have the same outer diameter. The tooth profiles of the female rotor teeth sequentially include: female I circular arc, female II circular arc, female III circular arc, female I elliptical arc, female circular arc envelope, female IV circular arc, female II elliptical arc, female straight line, and female V circular arc. The tooth profiles of the male rotor teeth sequentially include: male I circular arc, male I circular arc envelope, male II circular arc envelope, male I elliptical arc envelope, male II circular arc, male III circular arc, male II elliptical arc envelope, male straight line envelope, and male III circular arc envelope. This invention's tooth profile is easy to grind, achieving higher surface accuracy. It features a short contact line, wide sealing surface, small leakage triangle, and small pressure difference between working chambers, improving sealing performance, reducing noise and vibration of the main unit, and increasing the lifespan and long-term operational reliability of the main unit bearings.

This invention provides a compressor and a refrigeration device, aiming to at least solve the problem of poor noise reduction and high exhaust resistance caused by the unreasonable matching of the valve plate cover and the exhaust port size of the muffler. The compressor includes a bearing assembly and a muffler. The bearing is provided with an exhaust port; a first valve plate is disposed on the bearing, and a first cover of the first valve plate is used to cover the exhaust port; a second valve plate is connected to the first valve plate, and a gap exists between the second cover of the second valve plate and the first cover; the muffler is connected to the bearing, and the muffler is provided with at least one exhaust port; wherein, the diameter of the first cover is D1, the diameter of the second cover is D2, the total area of ​​the exhaust port is S, and D1, D2, and S satisfy the following relationship: 1.5≤0.5×(D1+D2) / ≤5.0, where π is the square root and π is the mathematical constant pi. The compressor provided by this invention can avoid the increase in compressor power consumption caused by excessive back pressure and ensure the noise reduction effect.

The utility model discloses electric steamer, including the base of being equipped with water tank and the juice receiving disc of being placed on the base, be equipped with the water storage cavity and steam generation cavity of independent setting in the water tank, be equipped with the water replenishment channel of limiting water by the water storage cavity flow to steam generation cavity between the water storage cavity and steam generation cavity, and the water storage cavity top is open and forms the water inlet, and the water replenishment channel has the water outlet with steam generation cavity intercommunication and higher than steam generation cavity bottom surface, and the base still includes the water control switch for controlling the opening and closing of water replenishment channel, and the water control switch is used for closing water replenishment channel when the juice receiving disc is separated from the base, and the juice receiving disc is sealed with the base cooperation to water inlet, and the water control switch is used for opening water replenishment channel when water inlet is sealed. The utility model discloses electric steamer, and the user is convenient to the water storage cavity and adds water, and the water is simple and convenient to add, in addition, can also realize the automatic replenishment of a certain water amount to steam generation cavity, to realize the effect of fast steam, prevent dry burning.