A fuel injector mount for a vehicle
A fuel injector and mounting seat technology, which is applied in fuel injection devices, fuel heat treatment devices, charging systems, etc., and can solve problems such as leakage, poor sealing of engine injectors, and impact on engine use
Active Publication Date: 2020-02-14
ZHEJIANG GEELY NEW ENERGY COMML VEHICLES CO LTD +1
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Problems solved by technology
[0004] An object of the present invention is to provide a fuel injector mounting seat to solve the problem of poor sealing of the fuel injector of the air port injection engine, which causes leakage and affects the use of the engine
Method used
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Embodiment Construction
[0045] figure 1 is a schematic perspective view of an injector mount according to an embodiment of the present invention. image 3 It is a schematic sectional front view of the fuel injector mounting seat and the fuel injector docking. Simultaneously combined figure 1 and image 3To illustrate, the inventor creatively found that the poor sealing of the fuel injector of the port injection engine, which causes leakage and affects the use of the engine, is due to the fact that the engine is equipped with a supercharger or is provided with a supercharging and exhaust gas recirculation function. The temperature of the gas in the airway is as high as more than 100 degrees Celsius, or even higher. This high ambient temperature, for methanol, ethanol and gasoline, will accelerate the chemical reaction, and the new substances produced will lead to the sealing of the fuel injector, especially the valve ball 22 and valve seat 23 inside the fuel injector after a long time. This foreig...
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The invention provides a fuel injector mounting seat for a vehicle and relates to a fuel injector for the vehicle. The fuel injector mounting seat is used for a port injection type engine. The head ofthe fuel injector, a valve ball and a valve seat are retained in a cavity formed in the mounting seat. The cavity is externally connected with a gas injection device. The gas injection device is usedfor blowing and injecting gas to the head of the gas injection device, and / or the valve ball and / or the valve seat so as to prevent foreign matter from being generated or / and retained in the fuel injector in the operating process of the fuel injector. The head of the fuel injector is used for injecting burning fuel of the vehicle. The engine is an engine with a supercharger or / and with supercharging and exhaust recirculation functions. In the operating process of the engine, the burning fuel of the vehicle is injected by the head of the fuel injector. Gas injected to the head of the fuel injector or / and the valve ball or / and the valve seat by a gas injection device can cool the head of the fuel injector, the valve ball and the valve seat so as to prevent generation of foreign matter; andthe retained foreign matter can be blown away the surrounding portion of an orifice plate and fuel injection holes of the fuel injector.
Description
technical field [0001] The invention relates to a vehicle fuel injector, in particular to a vehicle fuel injector mount. Background technique [0002] A gasoline injection engine is an engine with a gasoline injection system, that is, an airway injection engine, relative to a carburetor gasoline engine. Due to the easy volatilization of gasoline, it is convenient to form a homogeneous combustible mixture outside the cylinder, so the carburetor supply method installed on the intake manifold has been adopted for a long time. Since this kind of fuel supply system cannot accurately control the air-fuel ratio of the mixer according to different working conditions, it has been replaced by electronically controlled gasoline injection. Gasoline injection methods can be divided into three types: multi-point injection (MFI), multi-point injection (MFI), manifold or central single-point injection (SPI) and direct injection (GDI) according to the installation position and working princ...
Claims
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IPC IPC(8): F02M61/14F02B77/04F02M31/06F01P1/10
Inventor 李书福蔡文远陈冲张甲乐苏茂辉
Owner ZHEJIANG GEELY NEW ENERGY COMML VEHICLES CO LTD