13results about How to "Improve air intake efficiency" patented technology

The application discloses a motorcycle, which comprises a frame, a body cover, a walking assembly and a power assembly. The walking assembly comprises a rear wheel, and the power assembly comprises an engine, an air filter and an air inlet pipe. The air inlet pipe comprises a left air inlet pipe and a right air inlet pipe which are distributed along the width direction of the motorcycle. The left air inlet pipe comprises a left air inlet part which extends along the length direction of the motorcycle. The right air inlet pipe comprises a right air inlet part which extends along the length direction of the motorcycle. In the height direction of the motorcycle, a horizontal plane perpendicular to the height direction of the motorcycle is defined. The projection of the left air inlet part on the horizontal plane extends along a first straight line, and the projection of the right air inlet part on the horizontal plane extends along a second straight line. The included angle between the first straight line and the second straight line ranges from 14° to 22°. Through the above arrangement, the air intake efficiency of the air inlet pipe can be improved.

This invention proposes a large-scale, shallow, circular silo-type self-regulating pressure system, comprising a silo body. Its key feature is the inclusion of an elastic device that can contract or expand under pressure. This elastic device is located at the top of the silo body and is connected to an air inlet pipe. The end of the air inlet pipe extends out of the silo body and is connected to an exhaust pipe and an intake pipe, respectively. The exhaust pipe is equipped with a one-way exhaust valve, and the intake pipe is equipped with a one-way intake valve. The end of the intake pipe is connected to a high-pressure gas source, providing gas at a temperature of 15 to 25°C. This invention effectively balances the pressure inside and outside the silo while also considering temperature-controlled grain storage processes, preventing overheating inside the silo while balancing the pressure difference. Furthermore, it is easy to install and can be retracted when not in use to reduce space occupancy within the silo.

This invention belongs to the field of generator sets, specifically a containerized diesel generator set and a method for quieting the generator set, including an electric generator set; the quiet containerized data center diesel generator set also includes a first compartment and a second compartment; the first compartment has a connected generator compartment, an air intake compartment and an exhaust compartment, the electric generator set is fixedly installed in the generator compartment, and a cooling fan is fixedly installed in the exhaust compartment; the second compartment has a heat dissipation compartment and a flue gas treatment compartment; relying on the above-mentioned modular stacked design, it can be prefabricated in the factory in advance, with a short construction period, convenient combination and use, and at the same time, the overall structure is compact, the whole system occupies only about 50 square meters, which greatly saves the machine room space, saves construction costs, and realizes the stacked arrangement of high-power kVA 5-15kVA units and their auxiliary components, saving space and pipeline length.

This utility model belongs to the field of hydrogen fuel cell technology and relates to an ejector assembly with a pressurization function. It includes an ejector body, a return valve body installed on the top of the ejector body, and the inner cavity of the return valve body communicating with the return port at the top of the ejector body. A turbine fan is rotatably mounted inside the return valve body to compress the fuel cell return gas flowing back to the return valve body. A solenoid valve is installed at the inlet end of the ejector body, and a nozzle is installed on the solenoid valve. The nozzle extends into the mixing chamber of the ejector body, and the nozzle outlet extends to the gas channel inlet end of the ejector body. This assembly can effectively improve the intake efficiency of the return hydrogen gas, and has high structural reliability and is easy to maintain.

This utility model relates to the field of gas turbine technology and discloses an anti-surge gas turbine, including a compressor; an intake pipe installed on the compressor; an anti-surge unit, which includes an inner support and an outer support disposed inside the intake pipe; and a plurality of adjusting blades arranged in a ring between the inner and outer supports. The adjusting blades actively regulate the airflow within the intake pipe, reducing airflow separation and pressure pulsation at the intake pipe, improving the intake airflow field, and eliminating surge. Through the anti-surge unit, this utility model can adjust the blade angle in real time, dynamically changing the flow direction and velocity distribution of the airflow within the intake pipe according to operating parameters such as speed and load, maintaining the compressor operating point in a stable region, achieving precise adjustment of the blade angle, quickly suppressing pressure pulsation caused by sudden changes in operating conditions, and blocking the causes of surge.

The utility model discloses a size changeable air intake pipe, including the air intake manifold for connecting engine, the air throttle valve for accurate control air intake and the pipeline main part for guiding and optimizing air intake airflow, for guiding and optimizing air intake airflow, air intake manifold and pipeline main part are connected respectively at air throttle valve's both sides, and pipeline main part is by interface section, connecting section and horn mouth section at least three section pipe body detachably connected composition, pipeline main part gradually increases along the direction of away from air throttle valve its pipe diameter. The utility model discloses size changeable air intake pipe, will air intake pipe design as multistage detachable modularization structure, need maintenance or refitting, and user only needs to simply unscrew each section pipe body, and the operation is extremely simple, and each section uses the screw thread cooperation and connects, spares the independent clamp, flange and multiple bolts, reduces the part quantity and material cost.

This utility model provides a fan assembly and a range hood. The fan assembly includes a fan and a bracket assembly. The fan has a volute and an external rotor motor. The volute forms a mounting cavity, and the external rotor motor is at least partially located within the mounting cavity. The bracket assembly has a first bracket and a second bracket, which are staggered and overlapped. The first bracket has a first mating part, and the second bracket has a second mating part. The volute has an air inlet side, and the ends of both the first and second brackets are connected to the air inlet side. One end of the central shaft of the external rotor motor passes through the first and second mating parts sequentially to connect to the bracket assembly. This effectively improves the robustness and reliability of the connection between the external rotor motor and the volute. Furthermore, the simple structure of the bracket assembly effectively ensures the air intake efficiency of the external rotor motor. Moreover, the assembly process of the bracket assembly is simple, effectively improving the convenience and efficiency of fan assembly.

The utility model discloses a replaceable air filter core air inlet pressure stabilization chamber, internal combustion engine and unmanned plane, include: the pressure stabilization chamber body, its inside constitution is used for stabilizing the main cavity of airflow, throttle flange, set up in the upstream end of pressure stabilization chamber body, be used for connecting throttle body, air inlet flange, set up in the downstream end of pressure stabilization chamber body, be used for connecting engine, air filter core box, it is connected with the installation mouth of being set up on the pressure stabilization chamber body wall surface in detachable mode to embed in main cavity, air filter core, its accommodation is in the inside of air filter core box, wherein, the airflow of flowing through throttle flange is after entering main cavity, passes through air filter core and filters, finally is transported to engine through air inlet flange.

This application provides a centrifugal fan and electronic device, relating to the field of fan technology. The centrifugal fan provided by this application includes: a volute housing, including an air inlet surface along its own axial direction; fan blades disposed within the volute housing; a first air outlet located on a first sidewall in the radial direction of the volute housing; and an air inlet located on the air inlet surface and directly opposite the fan blades. The edge of the air inlet is constructed as an annular inclined surface formed by splicing multiple arc-shaped inclined surfaces. At least two of the multiple arc-shaped inclined surfaces have different inclination angles. The multiple arc-shaped inclined surfaces include a first arc-shaped inclined surface, which corresponds to the first air outlet along the radial direction of the fan blades. The inclination angle of the first arc-shaped inclined surface is greater than or equal to 120° and less than or equal to 130°, and the inclination angle is the angle between the arc-shaped inclined surface and the air inlet surface. This application provides a centrifugal fan and electronic device that can improve air intake efficiency and reduce noise.

This application belongs to the technical field of medical devices and discloses an airflow switching rotary valve and an oxygen generator. The airflow switching rotary valve includes a mounting base and a moving valve core. The mounting base has a distribution chamber and an air inlet communicating with the distribution chamber. The moving valve core is located inside the distribution chamber and has a moving plate sealing surface. The moving plate sealing surface is provided with an exhaust chamber. The moving valve core is provided with an air inlet channel located on the side of the exhaust chamber. The outer peripheral surface of the moving valve core is provided with multiple contact positions. The contact positions contact the cavity wall of the distribution chamber to restrict the relative movement of the moving valve core with the mounting base in its own radial direction and to restrict the deflection of the moving valve core in its own axial direction. This ensures the sealing performance between the moving valve core and the stationary valve core and reduces the manufacturing cost of the airflow switching rotary valve.

This utility model provides a compressor valve plate air guiding device, relating to the technical field of air guiding devices. It includes a pressure reducing mechanism and a connecting pipe, the connecting pipe being fixedly connected to the input end of the pressure reducing mechanism. It also includes an adjusting air guiding component, which consists of an exhaust sleeve disposed below the pressure reducing mechanism, an adjusting sleeve, and a fan-shaped air inlet box. The top of the adjusting sleeve is connected to the bottom of the exhaust sleeve, and the fan-shaped air inlet box is disposed on one side of the adjusting sleeve. By adjusting the air guiding component, the adjusting sleeve is connected to the exhaust sleeve, ensuring smooth airflow. The fan-shaped air inlet box, located on one side, is connected to the adjusting sleeve through an annular through-hole for easy gas introduction. A snap-fit ​​rotating shaft drives the fan-shaped adjusting block to rotate, precisely controlling the air intake to meet different operating conditions. This adjustable design improves the flexibility and adaptability of the equipment, ensures stable gas delivery, improves overall operating efficiency, and reduces energy consumption and failure risks.

The application provides an air inlet cover and a fresh air device, wherein the air inlet cover is internally provided with a containing cavity, and the air inlet cover further comprises a side wall and a flow guide assembly. The side wall is arranged around the containing cavity, and the side wall is provided with an air inlet opening communicated with the fresh air pipe and the containing cavity, so that the external air can enter the containing cavity through the air inlet opening. In addition, the flow guide assembly is located in the containing cavity and comprises a first rib and a second rib connected at their ends. A first air inlet channel is formed between the first rib and the side wall, and a second air inlet channel is formed between the second rib and the side wall. Meanwhile, the first air inlet channel, the second air inlet channel and the fresh air pipe are connected in a T shape, and the inlet end width of the second air inlet channel is greater than that of the first air inlet channel. In addition, the second air inlet channel and the fresh air pipe are at least partially substantially parallel, so that when the air enters the second air inlet channel, the flow direction of the air is not changed, thereby further improving the air inlet efficiency of the air inlet cover.

The utility model discloses a spray gun, aims at providing a spray gun that high spraying efficiency, strong uniformity, its technical scheme main points are including gun body and set up in the air inlet channel and the discharge channel of gun body, the handle of gun body is equipped with air inlet component and trigger switch, still be equipped with spray material subassembly, hollow gun needle spare and adjusting assembly in the gun body, spray material subassembly includes setting in the spray nozzle of gun body head, the feed connector of being located in the side of gun body head, the recessed ring of setting in the spray nozzle, the auxiliary air inlet hole of being located in the gun body head and the discharge amount adjusting rod of setting in the gun body, the recessed ring is matched with the auxiliary air inlet hole, makes gas spread all around, and the pressure uniformity of paint spraying is exported. The utility model is applicable to the technical field of spray gun.