Intake valve with helical channel for generating intake swirl and internal combustion engine
A technology of spiral channel and intake valve, which is applied to internal combustion piston engines, combustion engines, mechanical equipment, etc., can solve problems such as large intake resistance, easy partial wear of valves, and unfavorable sealing, so as to meet power performance and improve fuel economy Performance and emission performance, and the effect of improving air intake resistance
Active Publication Date: 2019-04-02
SHANDONG UNIV
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Problems solved by technology
However, the intake valve with air guide screen has the following disadvantages: (1) the air intake resistance is very large; (2) in order to ensure the strength of the eddy current, a valve anti-rotation mechanism needs to be installed; (3) the air guide screen is added to make the valve disc rigidity Uniform, large deformation, easy to partial wear of the valve, unfavorable for sealing
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Embodiment Construction
[0023] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.
[0024] On the one hand, the present invention provides an intake valve 1 with a spiral passage that generates intake swirl, such as Figure 1 to Figure 6 As shown, it includes a valve stem 11 and a valve disc 12. The back of the valve disc 12 is provided with a plurality of arc-shaped deflectors 2 with the same bending direction to make the intake air flow form a vortex. The cover 3, the flow guide cover 3 is generally in the shape of a truncated cone, or the flow guide cover 3 includes a truncated cone-shaped main body and an arc-shaped air guide port located on the truncated-conical main body.
[0025] A plurality of arc-shaped deflectors 2 with the same bending direction are arranged on the back of the valve disc 12 of the intake valve 1 with a spiral...
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The invention discloses an intake valve generating intake swirls and with a spiral channel and an internal combustion engine, and belongs to the field of distribution mechanisms and intake systems of internal combustion engines. The intake valve comprises a valve rod and a valve retainer. A plurality of arc-shaped guide plates with the same bending direction are arranged on the back face of the valve retainer and make intake airflow form the swirls. A guide cover is arranged on the upper portion of each guide plate. Each guide cover is integrally of a truncated cone shape or comprises a truncated cone-shaped body and an arc-shaped guide opening located in the truncated cone-shaped body. According to the intake valve generating intake swirls and with the spiral channel, the spiral channel is formed through the guide plates between the guide covers and the valve retainer, strong intake swirls can be generated during small lift of the intake valve, and small intake resistance can be achieved during large lift of the intake valve.
Description
technical field [0001] The invention relates to the field of a gas distribution mechanism and an intake system of an internal combustion engine, in particular to an intake valve with a spiral channel that generates an intake vortex and an internal combustion engine. Background technique [0002] The internal combustion engine improves its economy, power and emission performance by organizing the intake swirl. There are usually three ways to generate intake vortex: tangential air passage, spiral air passage and intake valve with air guide screen. The shape of the tangential air passage is simple, but the intake resistance is large and the vortex is relatively small. The intake vortex intensity of the spiral air channel is relatively high, but the shape of the air intake channel is complex. The tangential air channel and the spiral air channel generate the intake vortex through the shape of the air channel. When the intake valve lift is small, the vortex generated by the ta...
Claims
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IPC IPC(8): F01L3/06
CPCF01L3/06Y02T10/12
Inventor 谢宗法常英杰房佩鸽
Owner SHANDONG UNIV