Patent ID: 12258920

DETAILED DESCRIPTION OF THE EMBODIMENTS

The present disclosure is further described below with reference to the accompanying drawings.

Referring toFIG.1toFIG.3, an improved throttle body structure is provided, including a throttle body1, where the throttle body1is provided with a plurality of airflow channels2running from top to bottom, each of the airflow channels2is internally provided with a butterfly valve3for controlling a ventilation volume, and the throttle body1is internally provided with injectors4whose quantity corresponds to a quantity of the airflow channels2; and each of the airflow channels2is further internally provided with a tubular atomizer5mounted and fixed in a radial direction, the atomizer5is in a shape of a blind tube with one opening end, a tube wall of the atomizer is provided with a plurality of atomizing holes51, and the opening end of the atomizer5is connected to the injectors4.

During use, fuel enters the opening end of the atomizer5through the injectors4, and is then sprayed into the airflow channels2through the atomizing holes51. The tubular atomizer5is used, and the opening end of the atomizer5is directly connected to the injectors4. Therefore, there is no requirement on assembly precision and sealing performance between the atomizer5and the airflow channel2, thereby greatly reducing a requirement on processing precision of the atomizer5and the airflow channel2and further reducing product production costs.

In an implementation structure, the atomizer5is located above the butterfly valve3, and the atomizer5and a rotating shaft31of the butterfly valve3are disposed perpendicular to each other in the radial direction of the airflow channel2. Further, two groups of atomizing holes51distributed in a straight line in a length direction thereof are provided on the atomizer5, and the two groups of atomizing holes51are symmetrically provided on two sides of the atomizer5. Under the action of pressure, the fuel sprayed out from the atomizing holes51necessarily generate a specific spray distance, if the atomizer5and the rotating shaft31of the butterfly valve3are disposed parallel to each other, more fuel injection is always gathered at openings on two sides of the butterfly valve3regardless of an opening angle of the butterfly valve3. As a result, a linear relationship between a volume of fuel injection entering an engine and the opening angle of the butterfly valve3is relatively poor. When the atomizer5and the rotating shaft31of the butterfly valve3are disposed perpendicular to each other, the linear relationship between the opening angle of the butterfly valve3and the volume of fuel injection entering the engine is better, so that an output of the engine is more linear. In other embodiments, more groups of atomizing holes51may be provided.

Referring toFIG.1,FIG.4, andFIG.5, in an implementation structure, the throttle body1includes a circular top plate11connected to a filter and a box body12that is integrally formed below the top plate11and has an accommodating space, the throttle body1is provided with two airflow channels2, and both the two airflow channels2are located at a right semicircle of the top plate11. In this structure, only two airflow channels2are provided. Compared with a throttle body with a single airflow channel2, fuel injection may be mixed with air more uniformly and then enter the engine, so that combustion efficiency is improved; and compared with a throttle body with a plurality of airflow channels2, this structure can reduce fuel consumption and reduce processing costs.

Referring toFIG.4andFIG.5, in an implementation structure, a bypass channel6running through the throttle body1is further provided corresponding to a left semicircle of the top plate11, and a valve body61and a stepping motor62that are configured to control opening and closing of the bypass channel6are further provided in the box body12corresponding to the left semicircle. Further, the box body12is disposed rightward to exceed the top plate11, and the injectors4and fuel lines7for supplying fuel to the injectors4are provided in the part of the box body12exceeding the top plate. Because there are only two airflow channels2, the bypass channel6, the valve body61, and the stepping motor62may be mounted in the box body12below the left semicircle of the top plate11. Therefore, a size of the throttle body1is reduced. In addition, the throttle body1is made by a metal material through processing, so that the reduced size can significantly reduce product material costs.

Referring toFIG.2, in an implementation structure, the butterfly valves3of the two airflow channels2share one rotating shaft31, one end of the rotating shaft31is provided with a spring connecting member32causing the butterfly valves3to rotate, and the other end of the rotating shaft is provided with an angle sensor33configured to detect an opening angle of each of the butterfly valves3. When two butterfly valves share one rotating shaft31, compared with a multi-hole throttle body, a linkage between rotating shafts31is omitted, so that product costs are further reduced, and absolute synchronization of the butterfly valves3in the two airflow channels2may be ensured simultaneously.

The above description constitutes no limitation to the technical scope of the present disclosure, and any change, equivalent variation, or modification made to the foregoing embodiments according to the technical essence of the present disclosure still falls within the scope of the technical solutions of the present disclosure.