8results about How to "Increase output flow" patented technology

The invention relates to the technical field of piezoelectric pumps, in particular to a piezoelectric fluid pump which comprises a fluid excitation unit and at least one opposed plate. The fluid excitation unit is provided with a piezoelectric plate, a substrate, a spacing part and a diaphragm, and the piezoelectric plate and the substrate form an actuator; a pump cavity is formed between the opposed plate and the diaphragm; at least two hole parts communicated with the pump cavity penetrate through the area, opposite to the diaphragm, of the opposite plate, the hole parts are inlets or outlets, at least one hole part is an inlet, the other hole part is an outlet, and at least one hole part is provided with a one-way valve; according to the piezoelectric fluid pump, the diaphragm serves as an excitation source for exciting the fluid in the pump cavity to generate pressure variation, the diaphragm is fixedly connected with the actuator through the spacing part, under the structure, the diaphragm can generate vibration displacement which is several times or even dozens of times that of the actuator due to extremely small vibration displacement of the actuator, and therefore the vibration displacement of the diaphragm is greatly reduced. And the volume variation of the pump cavity during working can be greatly improved, so that the output flow is greatly improved.

The present invention relates to the technical field of piezoelectric pumps, and in particular to a piezoelectric fluid pump, comprising a fluid excitation unit and at least one opposing plate; the fluid excitation unit comprises a piezoelectric sheet, a substrate, a spacer and a diaphragm, and the piezoelectric sheet and the substrate constitute an actuator; a pump chamber is formed between the opposing plate and the diaphragm; at least two holes connected to the pump chamber are penetrated in the area of ​​the opposing plate opposite to the diaphragm, and the holes are inlets or outlets, wherein at least one hole is an inlet, and another at least one hole is an outlet, and at least one hole is provided with a one-way valve; the piezoelectric fluid pump of the present invention uses a diaphragm as an excitation source for exciting the fluid in the pump chamber to produce pressure changes, and the diaphragm is fixedly connected to the actuator through the spacer. Under this structure, the extremely small vibration displacement of the actuator can cause the diaphragm to produce several times or even dozens of times the vibration displacement of the actuator, thereby greatly improving the volume change of the pump chamber during operation, thereby greatly improving the output flow rate.

This invention discloses a hydraulic power module, its application, a hydraulic system, a fire truck, and a method. The hydraulic power module, used in the hydraulic system of a fire truck, is suitable for adjusting various hydraulic components. It includes a pressure signal pipeline for monitoring the pressure values ​​of the hydraulic system and controlling the hydraulic output. The pressure signal pipeline collects dynamic pressure values ​​of the hydraulic system in real time, forming a continuous pressure feedback signal. The pressure feedback signal is compared in real time with a preset target pressure value. If the pressure feedback signal continuously deviates from the target pressure value, a fault signal is issued. This hydraulic power module, by setting multiple hydraulic power sources, allows other hydraulic power sources to provide emergency hydraulic power when one source fails, preventing loss of hydraulic power, improving the stability of the hydraulic system, and providing emergency hydraulic power support. The accumulator absorbs pressure signal peaks, stabilizing the pressure signal.

The invention relates to the technical field of compressors, in particular to a seat air suspension system compressor which comprises a compressor shell, a motor assembly is arranged in the compressor shell, the output end of the motor assembly is connected with an eccentric block, the eccentric block is connected with a connecting rod, and the end of the connecting rod is connected with a PTFE packing cup. A compression cavity is further formed in the compressor shell, an anodic oxidation layer is arranged on the inner wall of the compression cavity, and the PTFE leather cup slides on the inner wall of the anodic oxidation layer. According to the air suspension compressor, through heat dissipation and noise technical improvement measures, the noise level of the air suspension compressor during working can be remarkably reduced, the heat dissipation capacity can be improved, the production cost can be effectively controlled, and the product is more attractive in the market; particularly, aiming at the solution of noise and heat dissipation problems, the comfort level of a driver and passengers is greatly improved, and the noise trouble is solved; in addition, through innovation of materials and technologies, lower energy consumption and longer product service life are achieved.

The invention relates to an electronic water pump control device which comprises a power supply module for supplying power to the whole device, and further comprises a voltage follower, an FOC controller, a pre-drive circuit and an inverter circuit which are connected in sequence, and the inverter circuit is electrically connected with a BLDC motor. The invention further provides an electronic water pump control method. The method comprises the steps that S1, a power source is turned on; s2, the given voltage and the FOC feedback voltage enter a voltage follower to be subjected to an additive operation method, then voltage loop PI operation is carried out to output a given rotating speed, the output given rotating speed and the motor feedback rotating speed are subjected to additive operation, then speed loop PI operation is carried out, and torque reference current is output to an FOC controller; s3, the FOC controller outputs Ua, Ub and Uc to a pre-drive circuit; s4, the pre-drive circuit amplifies the Ua, Ub and Uc signals and then controls the inverter circuit; and S5, the inverter circuit outputs U / V / W to drive the BLDC motor to operate. According to the invention, the problem that part of speed regulation curves fail after the system voltage is reduced and the problem that the flow becomes low due to the change of flow resistance are solved, and the system stability is improved.

The present invention relates to the technical field of electronic equipment, and in particular to an integrated heat dissipation device and electronic equipment, comprising a shell and a piezoelectrically driven actuator; the actuator accommodating chamber is divided into a heat exchange chamber located on the side of a first chamber and a heat dissipation chamber located on the side of a second chamber, a first hole portion is penetrated through the area of ​​the diaphragm opposite to the first chamber, and a second hole portion is penetrated through the area of ​​the diaphragm opposite to the second chamber, and the first hole portion is used to impact a heat source area when the gas is discharged from the first chamber, and the heat exchange process and the heat dissipation process are decoupled, and the heat exchange chamber inhales fresh gas under the action of negative pressure formed in the peripheral area to perform efficient heat exchange, while the heat dissipation chamber continues to perform efficient heat dissipation, and the gas carrying heat enters the heat dissipation chamber through a connecting channel under the action of continuous negative pressure formed on the periphery of the heat dissipation chamber, and is finally ejected to the external environment through a jet hole, and the process of converting the inflow of fresh gas into the outflow of hot gas carrying heat presents a unidirectional flow characteristic, and no local hot gas circulation will be formed.

The application discloses a self-pressurizing gear pump and relates to the technical field of hydraulic pumps.The main structure is that oil channel a and oil channel b are arranged in the side walls of the "8"-shaped installation cavities on the meshing starting side and the meshing separating side;the upper surface of the lower distribution disc is provided with a lower distribution waist-shaped port a communicated with the variable volume cavity on the meshing starting side and a lower distribution waist-shaped port b communicated with the variable volume cavity on the meshing separating side;one end of the oil channel a is communicated with the lower distribution waist-shaped port a through the lower oil channel a arranged in the lower distribution disc;and one end of the oil channel b is communicated with the lower distribution waist-shaped port b through the lower oil channel b arranged in the lower distribution disc.The self-pressurizing gear pump provided by the application utilizes the fact that the volume of the inner wall of the "8"-shaped cavity and the tooth top circle of the gear on the meshing side becomes smaller when the gear continuously meshes and rotates, so that the first-stage pressurization of the oil is realized;and the oil is extruded to realize the second-stage pressurization by the reduction of the volume of the variable volume cavity formed when the gear continuously meshes, so that the output pressure is greatly improved.

A parallel dual-head four-cylinder plunger pump. This invention aims to solve the problems of existing pumps, such as difficult installation, low installation efficiency, difficulty in increasing and adjusting output flow, and large size of the working device. The technical solution includes a pump head, a first motor, a second motor, a first plunger pump body, a second plunger pump body, a third plunger pump body, a fourth plunger pump body, a first plunger, and a second plunger. Each pump head has an outlet channel and an inlet channel. The first and second plunger pump bodies are symmetrically mounted on the front of the pump head, and the third and fourth plunger pump bodies are symmetrically mounted on the back of the pump head. The first plunger slides with both the first and second plunger pump bodies, and the second plunger slides with both the third and fourth plunger pump bodies. The first motor is mounted on the first and second plunger pump bodies and drives the first plunger. The second motor is mounted on the third and fourth plunger pump bodies and drives the second plunger.