A supercharged anti -asthmatic device and engine
An anti-surge, supercharger technology, applied in combustion engines, engine components, machines/engines, etc., can solve problems such as reduced ride comfort, surge, supercharger impeller impact, etc.
Active Publication Date: 2022-08-05
WEICHAI POWER CO LTD
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Problems solved by technology
When the throttle valve is suddenly closed, the air pressure between the compressed air end of the supercharger and the throttle valve will increase suddenly, and the air flow will fluctuate in the entire intake pipe, causing the impeller of the supercharger to be impacted, resulting in surge phenomenon
When the surge occurs, the noise increases, the ride comfort decreases, and the damage to the parts of the supercharger is also aggravated
However, the pressure relief pressure of the existing mechanical anti-surge valve depends on the pressure difference before and after the throttle valve. Since the pressure change after the throttle valve of the gas engine fluctuates greatly, the opening or closing of the surge valve does not necessarily reflect the actual working conditions. The needs of the situation, the responsiveness effect is not good
Method used
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[0049] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, the drawings only show some but not all structures related to the present invention.
[0050] In the description of the present invention, unless otherwise expressly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between the two elements....
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The invention relates to the technical field of engines, in particular to a supercharging anti-surge device and an engine. The supercharging and anti-surge device is arranged on the pipeline between the supercharger and the throttle valve, and includes: a casing, the casing is provided with a supercharging cavity and an anti-surge cavity, and the supercharging cavity is used to pressurize the supercharger after The gas is introduced into the supercharger control valve, and the anti-surge cavity is used to export the gas in front of the throttle valve when the throttle valve is suddenly closed; the anti-surge valve body, the anti-surge valve body is slidably arranged in the anti-surge cavity , the anti-surge valve body is configured to release the pressure of the supercharged gas when the throttle valve is suddenly closed; the pressure regulating solenoid valve, the pressure regulating solenoid valve is arranged at the end of the boosting chamber to regulate the gas entering the supercharger Control the gas volume of the valve; anti-surge solenoid valve, the anti-surge solenoid valve is set in the anti-surge cavity to adjust the pressure at both ends of the anti-surge valve body. The device can achieve gas boosting and prevent the supercharger from surging after the throttle valve is suddenly closed.
Description
technical field [0001] The invention relates to the technical field of engines, in particular to a supercharging anti-surge device and an engine. Background technique [0002] After the supercharger supercharges the air, the air temperature will increase, and the air needs to be cooled by the intercooler, and then enters the engine through the throttle valve. The opening pressure of the traditional supercharger pressure control valve depends on the output of the supercharger pressure shell. The port pressure, the opening pressure of the bleed valve of the pure mechanical supercharger is determined before the supercharger leaves the factory, it cannot change with the different working conditions of the engine, and cannot meet the engine's demand for boost pressure in a wider range; although In the prior art, a method of using an electronically controlled valve to control the pressure is proposed, but this method requires additional high-pressure gas, which is controlled on an...
Claims
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IPC IPC(8): F02B37/18F02B39/00
CPCF02B37/18F02B37/183F02B39/00Y02T10/12
Inventor 朱耀文郑世魁张卫兵徐长科
Owner WEICHAI POWER CO LTD