42results about How to "Reduce mechanical friction loss" patented technology

A hybrid oil pump system may include a motor connected to an oil pump and supplying torque, an engine disposed to supply torque to the oil pump, and a first one-way clutch disposed in a line through which the torque from the engine may be supplied to the oil pump, and selectively supplying the torque from the engine to the oil pump in accordance with a difference in RPM between the engine and the motor.

At least one power supply produces a voltage between a cathode and an anode. The cathode and anode are operable such that electrons emitted from the cathode interact with the anode with energies corresponding to the voltage. The electrons interact with the anode at a focal spot to generate X-rays. The power supply provides the cathode with a cathode current. An electron detector is positioned relative to the anode, and a backscatter electron signal is measured from the anode. The measured backscatter electron signal is provided to a processing unit, which determines a cathode current correction and / or a correction to the voltage between the cathode and the anode using the measured backscatter electron signal and a correlation between anode surface roughness and backscatter electron emission.

The invention discloses a waste heat power generation system with a conical rotor. The waste heat power generation system is formed by acting working medium, a heat exchanging device and an electrical system, wherein the acting working medium is organic working medium; the conical rotor can be in a bearing-contained structure or a bearing-free structure; when the conical rotor is in a bearing-container structure, a radial turbine expansion machine produces axial tension FR opposite to a direction of electromagnetism axial force FL produced by the conical rotor of a generator coaxially coupled with the radial turbine expansion machine; the FL adjust with changes of FR and can be fully counteracted; when the conical rotor is in a bearing-free structure, a power winding set and a suspension winding set are embedded into a stator of the generator at the same time and the rotor of the generator and the coaxial radial turbine expansion machine can suspend; and a bearing-free effect can be achieved, and power winding set actions can be considered at the same time. The power generation system is characterized by simple structure, long maintenance period and high efficiency; upon the bearing-free structure, purity of the action working medium of the power generation system can be guaranteed, so service life of the system can be prolonged.

The invention discloses a rotary constant-volume pressurizing combustion chamber. The rotary constant-volume pressurizing combustion chamber comprises multiple independent constant-volume combustion chamber bodies, a fuel inlet tube, a fuel outlet tube, fuel nozzles, a spark plug mounting base, an air feeding structure, a spark plug and the like. The rotary constant-volume pressurizing combustion chamber is simple in structure. The air feeding structure can send air and fuel into the combustion chamber bodies uninterruptedly, an exhaust structure can exhaust high-temperature and high-pressure gas continuously after combustion in the independent constant-volume combustion chamber bodies, and continuous air feeding and exhaust of the combustion chamber bodies are achieved; accordingly the air feeding and exhaust efficiency of the combustion chamber bodies is improved, and the fuel and air filling speed of the combustion chamber bodies is improved at the same time. The rotary constant-volume pressurizing combustion chamber is free of a piston compression structure, upper and lower dead centers are absent, and the effective volume can be equal to the volume of the combustion chamber, accordingly the space use rate of the combustion chamber bodies is improved; meanwhile, according to the combustion chamber bodies, friction between pistons and combustion chamber body walls is prevented, so that the mechanical friction loss is small, and the fuel heat use rate of the combustion chamber bodies can be improved.

The invention belongs to the technical field of bearings and particularly relates to a porous metal matrix composite material bearing based on elastohydrodynamic lubrication. The porous metal matrix composite material bearing comprises a bearing inner ring, a rolling ball retainer and a bearing outer ring which are sequentially arranged from inside to outside, wherein the rolling ball retainer isinternally provided with a plurality of rolling balls which are uniformly distributed around the bearing inner ring; in addition, each rolling ball comprises a spherical matrix with a porous surface;an elastic reinforcement layer wraps the outer surface of each spherical matrix. According to the porous metal matrix composite material bearing disclosed by the invention, a high-pressure area is formed on micro contact area by adopting the spherical matrixes with the porous surface and the elastic reinforcement layers and an elastohydrodynamic lubrication principle; by adding a lubricating area,mechanical friction loss between the surfaces of rigid parts is reduced, and bearing capacity of the bearing is improved.

The invention belongs to coal mining machinery, in particular to a coal mining planer with few power sources, simple structure, wide application range and high production efficiency. , speed reducer (25), hydraulic system motor (27), hydraulic pump station (29), oil cylinder (30), planer head (19) and planer (20), two fixed on the output shaft of speed reducer (25) A driving sprocket (26), is connected with the driven sprocket (23) transmission that is fixed on two driving shafts (18) with two transmission chains (35), and the driving shaft (18) outer end is fixed on a circle evenly Traction wheels (16) with several U-shaped grooves (16-1) are distributed; transmission crawlers (17) are movable between the two traction wheels (16); the coal mining planer is simple in structure and light in weight. Low cost; save energy consumption; low failure rate, high start-up rate, simple maintenance, small maintenance and low cost.

The invention discloses a square dual-stator hybrid reluctance type magnetic levitation linear motor, which comprises an upper stator, a lower stator and a mover. Pressed, each sheet stator from left to right is: left suspension core, left stator bypass core, left axial control core, right axial control core, right stator bypass core, right suspension core, left and right suspension The iron core, the left and right bypass iron cores are connected as a whole through an axially magnetized permanent magnet block, and then connected with the left and right axial control iron cores through a magnetic isolation aluminum block. The positioning is accurate and the action is fast. When the mover is in the equilibrium position , the mover is kept in stable suspension by the bias magnetic flux, and the power consumption of the motor is low.

The invention belongs to coal mine tunneling and crushing machinery, in particular to an adaptive hard-rock impact rotary crushing system. The system comprises a hydraulic pump (13), a hydraulic control module (14), a hydraulic control valve (15), a hydraulic pipeline (16), a hydraulic motor (12) and a thrust hydraulic main cylinder (11); a rotating knife rest (1) is sleeved at the left end of the thrust hydraulic main cylinder (11); the thrust hydraulic main cylinder (11) and the rotating knife rest (1) are connected through a supporting pin (18); two ends of the supporting pin (18) are fixedly limited by a locking pin (17) respectively; a hob head supporting surface (1-1) and a central hole are formed on a front end face of the rotating knife rest (1); and a plurality of angle adjustable disc-shaped hobs (23) are uniformly and fixedly arranged on the hob head supporting surface (1-1) and are supported by a hob supporting bearing (21). The adaptive hard-rock impact rotary crushing system has a simple structure, light weight, low failure rate and low maintenance, and is low in cost, easy to repair and low in maintenance expense.