A tornado nozzle
A tornado and nozzle technology, used in fuel injection devices, charging systems, machines/engines, etc., can solve the problem of limited atomization performance of nozzles, and achieve the goal of improving atomization performance, ensuring stability, and maintaining a balanced medium swirl process. Effect
Active Publication Date: 2019-07-16
常州江苏大学工程技术研究院 +1
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Problems solved by technology
However, the improved nozzle atomization performance of this patent is limited and needs to be further optimized
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[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. For a clearer disclosure, "upper" and "lower" in the present invention are defined relative to the direction of the medium. In the drawings, the position of the element that the medium passes first is defined as "upper", and the position of the element that the medium passes after is defined as "lower".
[0032] as attached figure 1 to attach Figure 8 As shown, a tornado nozzle of the present invention includes a valve body 7, a valve seat 1, a valve core 2, and an oil passage 8. One end of the valve body 7 is provided with an oil inlet, and the other end is connected with the valve seat 1, and the valve seat 1 is provided with an oil injection hole 5, the valve core 2 is set in the valve body 7 and its one end is in sealing connection with the valve seat 1, and the oil passage 8 is set between the valve core 2 and the valve body 7 and the two ends are...
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A tornado-type nozzle, comprising a valve body (7), a valve seat (1), a valve core (2) and an oil passage (8); an oil inlet is provided on one end of the valve body (7), the other end of the valve body is connected to the valve seat (1), an oil spray hole (5) is provided on the valve seat (1), the valve core (2) is provided within the valve body (7) and one end of the valve core is connected to the valve seat (1) in a sealing manner, the oil passage (8) is provided between the valve core (2) and the valve body (7), and two ends of the oil passage are in communication with the oil inlet and the oil spray hole (5), respectively; and said nozzle further comprises a spiral block (3); the spiral block (3) is arranged within a spiral block placement cavity (11) which is provided within the valve seat (1) and fits the spiral block, one end of the valve core (2) passes through the spiral block (3) and is connected to the valve seat (1) in a sealing manner, at least one spiral groove (4) is provided on a contact surface between the spiral block (3) and the valve seat (1), and the oil inlet is in communication with the oil spray hole (5) through the spiral groove (4). The design of a spiral block is added to the tornado-type nozzle, so that a medium enters the valve seat in an accelerated manner under the interaction of a shear pressure in both a vertical direction and a spiral direction, thereby improving the atomization performance of the nozzle.
Description
technical field [0001] The invention belongs to the technical field of automobile engines, and in particular relates to a multipurpose tornado nozzle, which is suitable for high and low pressure, low pressure and various media. Background technique [0002] The fuel injector is one of the key components of the engine, and its performance will seriously affect the performance of the engine. In existing automobile engines, people have adopted various types of nozzles to improve spray quality, such as high and low pressure direct injection nozzles, swirl nozzles, etc. [0003] Publication number is the utility model patent of CN2606192, specifically discloses a kind of electric fuel injection fuel injector of automobile, comprises valve body, nozzle orifice plate, ball head, shell, and the nozzle hole on the nozzle orifice plate is 2-3. The patent has the advantages of simple structure, sufficient combustion, and little environmental pollution. However, due to the solid injec...
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IPC IPC(8): F02M61/18F02M61/16
CPCF02M61/16F02M61/18
Inventor 赵典秋刘新冬袁亚飞汤丽吴振
Owner 常州江苏大学工程技术研究院