36results about How to "Reducing vibration and noise" patented technology

An electric power steering apparatus includes a speed reducing mechanism for decelerating the rotation of a rotatable shaft in an electric motor and a converting mechanism for converting the output rotation of the speed reducing mechanism into the axial movement of a steering shaft extending toward the right and left sides of a vehicle. The speed reducing mechanism includes an input pulley driven by the electric motor, an output pulley arranged with the steering shaft enclosed thereby, a belt for connecting the input pulley and the output pulley to each other, and a belt tension adjuster.

The shaft and the bearing are capable of reducing vibration and noise of a motor. The shaft comprises: a shaft proper; and a sliding section provided to the shaft proper, the sliding section including carbon nano fibers or carbon nano tubes. On the other hand, the bearing comprises: a bearing proper; and a sliding section provided to the bearing proper, the sliding section including carbon nano fibers or carbon nano tubes.

A jackhammer system for reducing the vibration and noise experienced by an operator of the jackhammer. The jackhammer system includes a housing, a chisel movably positioned within a lower neck of the housing, a pair of flywheels rotatably attached to a pair of support brackets, a ram slidably positioned within a guide channel and engageable by the flywheels to engage the chisel, a plurality of elastic members attached to the ram, and an actuator mechanically connected to the support brackets for controlling a position of the flywheels. An upper sensor and a lower sensor determine the position of the ram within the guide channel. An engaging plate supported by a plurality of compression springs receives the downwardly impact of the ram when driving the chisel downwardly. A recoil absorber having a recoil spring is attached to an upper portion of the housing for absorbing the recoil of the ram.

A hermetic compressor casing is capable of reducing transmission of vibration to the outside environment by blocking the vibration from the compressor body. The hermetic compressor casing encloses a refrigerant compressing means, which draws in low temperature and low pressure gaseous refrigerant from an evaporator, compresses the drawn refrigerant and discharges the compressed refrigerant. The hermetic compressor casing includes an inner shell enclosing the refrigerant compressing means and having a passageway through which the gaseous refrigerant is drawn in and discharged out, a damping layer enclosing the exterior of the inner shell having a predetermined thickness, and an outer shell enclosing the exterior of the damping layer. As a result, vibration produced from the refrigerant compressing means is damped through the damping layer.

A micro liquid cooling device including a radiator, a thermal conductor, an actuator, and a circular path is proposed. The actuator includes a cavity sealed with a thin film, an inlet diffusion port connected to the cavity, an outlet diffusion port connected to the cavity, a magnetic body connected to the thin film, and a pole acting on the magnetic body, such that circulation of a liquid coolant in the circular path can be effected. By such design of the actuator, vibration and noise can be reduced and reliability can be improved, and thus problems caused by the use of a prior-art technique which employs a piezoelectric pump as an actuation source for the liquid coolant can be solved.

A hybrid car capable of stably ensuring the bad road running property, obtaining large acceleration in a satisfactory road surface state, and simultaneously when no large acceleration is required, running with fuel consumption kept unchanged is provided. The hybrid car is composed of an engine 1 for driving either of front wheels 2 and rear wheels 8, a generator 10 driven by the engine, a wheel driving motor 14 for driving engine non-driven wheels by power of the generator, a supercharger driving motor 1b for driving a supercharger 1a by the generator, a power distributor 12 adjusting power quantity for distributing the power from the generator to the supercharger motor and wheel driving motor, and a controller 7 for inputting information of wheel speed sensors 3a and 3b and controlling power distribution of the distributor.

A rotary-type fluid machine includes a compression mechanism having piston mechanisms arranged one on top of the other and a drive mechanism having a drive shaft that is configured and arranged to drive the piston mechanisms. Each of the two piston mechanisms includes a cylinder member with a cylinder chamber, a piston member housed eccentrically in the cylinder chamber such that the cylinder chamber is partitioned into first and second compression chambers. A phase difference of 90 degrees in volume change is made between the cylinder chambers of the two piston mechanisms. A movable one of the cylinder and piston has a first surface facing one of the first cylinder chambers and a second surface facing one of the second cylinder chambers, with a surface area of the first surface being equal to a surface area of the second surface.

In a rolling element accommodating belt having a rolling element accommodating section for individually accommodating a plurality of balls at predetermined intervals while the plurality of balls are rolling and circulating in an infinite circulating passage of linear guide, the rolling element accommodating belt accommodates the balls in the rolling element accommodating section and aligns the balls in the direction of aligning balls in the infinite circulating passage. The rolling element accommodating section includes: a restraint accommodating section for restricting the accommodated balls in all directions; and a no-restraint accommodating section in which the accommodated balls are not restrained at least in one direction.

A water-lifting pump apparatus which is free of a discharge valve and a check valve, is low in cost, and is capable of reducing vibration and noise due to a waterfall after the end of water pumping operation. The water-lifting pump apparatus has a suction tank (10), a discharge tank (20), a pump (30) for pumping water in the suction tank (10) into the discharge tank (20), and a discharge piping (50) connected to a discharge side of the pump, an actuator (60) for actuating the pump (50), a reverse flow preventing mechanism (80) for preventing a reverse flow of water pumped into the discharge tank (20) toward the discharge piping (50), and a back flow rate control (90) for controlling the flow rate of a waterfall falling from the discharge piping (50) into the suction tank (10) when pumping operation is finished.

Disclosed herein is a display apparatus including a display and a supporter. The supporter being mounted on the display and configured to support the display and rotate the display module between a first position and a second position. The supporter including a drive motor, a first gear, and a detection sensor. The drive motor configured to supply a driving force to rotate the display. The first gear configured to rotate together with the display by receiving the driving force from the drive motor. The detection sensor configured to detect a rotation amount of a second gear configured to rotate in with the first gear.

A system for noise and vibration management of a smoke evacuation system includes a pump that compresses air and produces a pressure differential within an airflow path. The pump may be a sealed, positive displacement pump. The system includes vibration absorption mechanisms disposed between inner and outer housings, as well as on the outside surface of the outer housing. Methods of controlling and regulating a motor of the system to preserve the lifespan of the motor and maintain consistent airflow rates throughout the smoke evacuation system include varying a supply of electrical current to the motor so that it can operate at variable performance levels. Orifices are opened and closed in order to relieve resistance pressures within the airflow path due to clogging and blockages.

An image reading device, and more particularly an image reading device having a cooler capable of preventing introduction of impurities and reducing vibration and noise. The image reading device includes a body having a reading unit, and a cooler disposed in the body cooling the reading unit. The cooler includes a housing, a cooling unit disposed in the body and moving air into the body, a filter member disposed apart from the cooling unit and removing dust contained in the air, and a damper member having one side supported by the filter member and the other side supported by the cooling unit.

A bar feeder includes a feeder tube mounted on a machine base, a transmission mechanism, a driving mechanism having a rotary shaft, a projecting rod connected to the driving mechanism and rotatable with the rotary shaft to engage or disengage from the transmission mechanism, a pushing rod, and a driven mechanism rotatable with the rotary shaft to move the pushing rod into engagement or away from the transmission mechanism. When the pushing rod and the transmission mechanism are coupled together, the pushing rod is movable along the feeder tube, and the projecting rod is disengaged from the transmission mechanism and moved away from the feeder tube. When the pushing rod and the transmission mechanism are disconnected, the pushing rod is not movable along the feeder tube, and the projecting rod is coupled to the transmission mechanism and movable along the feeder tube.

A motor-operated fan includes a housing, a motor secured in the housing, and an impeller rotatably mounted on the housing and rotated by the motor. Thus, the impeller has a plurality of blades and a plurality of auxiliary blades to produce a larger air flow when the impeller is rotated so as to push a ball located above the air cushion table, so that the ball is moved above the air cushion table in an irregular manner at a higher speed, thereby providing an amusement playing effect for players.