30results about How to "Make noise" patented technology

The invention discloses a porous pavement base layer water storage module. The porous pavement base layer water storage module is characterized by comprising at least on main water storage body; the main water storage body is provided with a containing cavity, the containing cavity is provided with an opening part opening upwards, a water permeating cover plate is arranged in the opening part, and a water absorbing filling core is arranged in the containing cavity; the man water storage body is provided with water outlet pipes communicated with the containing cavity. The invention further discloses a method for manufacturing the porous base layer water storage module. The water storage module is simple in structure and low in manufacturing cost, rainwater seeps into the water storage module through the face layer of a porous pavement to be stored and then is evaporated through the pavement, the weather conditions of the area are improved, and the heat island effect is reduced. The function of absorbing noise can be achieved, and the noise caused when the tires of a pavement automobile rub with the pavement is lowered. The invention further provides the method for manufacturing the water storage module. The technology manufacturing is convenient, the manufacturing efficiency is high, and safety and reliability are achieved. The application range is wide, and the water storage module can be applied to roads in communities, squares, urban lanes and the like.

A bidirectional electrostatic rotary microactuator has two sets of fixed electrodes, one set for driving the microactuator counterclockwise and the other set for driving it clockwise, and a rotatable frame that has movable electrodes attached to its outer wall and interleaved between the fixed electrodes. A layer of insulating material is located between the outer wall to which the movable electrodes are attached and the remainder of the frame so that the movable electrodes are electrically isolated. The frame is maintained at ground electrical potential and the movable electrodes at a fixed non-zero electrical potential. The microactuator is driven by applying a plus or minus voltage to one set of fixed electrodes and the opposite voltage to the other set, while maintaining the movable electrodes at a fixed non-zero voltage. The microactuator is usable as a secondary actuator in a disk drive for fine positioning the read / write head.

The invention provides a clutch neutral gear stopping device for an automobile automatic gearbox, belonging to the technical field of an automobile. The problem that the conventional automobile wastes energy due to a sliding mould and an engine load in a continuous speed reducing process can be solved. The clutch neutral gear stopping device comprises a TCU (Transmission Control Unit), a collecting piece for collecting position signals of a shift rod, a vehicle speed sensor, an EMS (Engine Management System) and a clutch pressure control module, wherein the collecting piece, the vehicle speed sensor, the EMS and the clutch pressure control module are respectively connected with the TCU. The TCU is used for receiving the position signals of the shift rod, which are collected by the collecting piece, and comparing vehicle speed signals collected by the vehicle speed sensor, accelerator opening signals transmitted by the EMS and brake pressure signals with a set value in the TCU when a shift is a travelling gear. If a vehicle speed is less than a vehicle speed set value, an accelerator opening degrees is less than an accelerate set value, and a brake pressure is more than a brake set value, the TCU sends a request signal of reducing a clutch pressure to control a clutch pressure control module to reduce the clutch pressure. According to the clutch neutral gear stopping device provided by the invention, the fuel economical efficiency of a dual-clutch transmission in the speed reducing process is effectively improved.

The invention discloses a disc type dragging and power generation integrated pulse power supply system, belongs to the technical field of inertia energy storage pulse power supplies, and aims to solvethe problems of long shafting, large vibration and noise, low system compactness, low energy storage density and low power density due to the fact that two motors are axially arranged at present. A conical bearing is arranged in a fixed platform, a ball bearing is arranged in a fixed device, and a rotating shaft is fixed on the conical bearing and the ball bearing; and upper air gaps are formed between the rotor and the upper stators, the number of the upper stators and the distance between the upper air gaps are respectively adjustable, and lower air gaps are formed between the rotor and thelower stators. An energy storage flywheel is fixed on the rotating shaft, and a permanent magnet is arranged on the surface of the energy storage flywheel; the compensation element is arranged belowthe permanent magnet; a rotor bandage is wound on the surface of a compensation element; the rotating shaft penetrates through a central hole; an armature winding is placed on a stator yoke, and is adischarge end; and the motor stator winding is wound on the stator yoke, and the motor stator winding is a charging end. The beneficial effects are that the charging speed is adjustable, and discharging is protected.

The assembly includes a pump bearing ring that is fitted with at least one bearing groove and is disposed in / on a bearing seat of a plastic coolant pump housing with an axial bearing collar, and several positioning webs which are located on the bearing seat. Separate adhesive grooves are placed between the positioning webs and the bearing collar. The adhesive grooves are provided with liquid-tight walls in four of the axial directions, an opening in the direction of the pump bearing ring, and slot-shaped adhesive pockets in the area of the outer edge of the pump bearing. A method for mounting a pump bearing in / on a plastic coolant pump housing includes steps of spreading adhesive on a bearing ring, pressing the bearing ring into / onto the bearing seat, and inductively heating the pump bearing in the plastic coolant pump housing.

The invention relates to an adjustment system for a vehicle seat connected to two rails (1, 2, 2*) and movable by means of said two rails (1, 2, 2*), with a Holding elements (3, 3*) made of plastic between the two rails (1, 2, 2*) and reinforcing elements (6, 6) connected to the holding elements (3, 3*) *).

The invention provides a pressure-reduction, anti-explosion and dust-removal device for aerodynamic reservoir reform of a coal-bed gas well, and is applicable to the technical field of gas power operation of the coal-bed gas well. The pressure-reduction, anti-explosion and dust-removal device mainly comprises a dust remover (1), a diffusion tube (2) and a gas feeding tube (3). During technical construction of a gas power reform coal storage reservoir, high-flow-speed gas is not directly released in air in a pressure releasing stage, is guided by the gas feeding tube (1) to enter the diffusion tube (2), and is subjected to eight pressure reduction effects under the action of eight wind shields (12) in the diffusion tube (2). Gas flows to the dust remover (1) through auxiliary round ventilating holes (5) in the wind shields (12), and coal (rock) powders or particles in the gas are stopped by the wind shields (12), drop, are blown by the gas, enter the dust remover through a coal passing hole (6) and then are removed. A four-stage blade type vortex plate tower tray (7) is arranged in the dust remover (1), the gas is forced to spirally rise by using the four-stage blade type vortex plate tower tray (7), and liquid flow is formed by water flow injected through a water injection tube, is distributed on blades of the vortex plate tower tray (7), is thrown to a wall of a tower by centrifugal force, and then flows in a water draining hole (9).