Variable-cross-section gas inlet channel distributing valve for natural gas engine
A variable cross-section, engine technology, applied in the direction of engine control, machine/engine, mechanical equipment, etc., can solve the problem of invariable air supply, achieve the effect of improving the quality of formation and improving thermal efficiency
Pending Publication Date: 2017-12-12
JILIN UNIV
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is to overcome the problem that the air supply volume of the spiral and tangential air intakes of the existing natural gas engines is not variable, and to provide a gas distribution valve for the variable cross-section intakes of the natural gas engine
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[0039] The present invention is described in detail below in conjunction with accompanying drawing:
[0040] refer to Figure 1-a to Figure 5-d , The gas distribution valve of the natural gas engine variable cross-section intake port of the present invention is composed of a valve box 1, a valve cover 2, a gas distribution slider 3 and a guide column 4.
[0041] refer to Figure 2-a , the guide column 4 is a cylindrical straight rod structure, and the insertion (one) end of the guide column 4 is processed with an external thread, and the length of the external thread and the size of the outer diameter are respectively the same as those of the arc groove on the gas distribution slider 3. The length of the internal thread of the threaded hole 8 at the center of symmetry at the bottom of the groove is the same as the inner diameter, and the diameter of the guide column 4 is the same as the diameter of the boss through hole on the hollow annular boss 11 and the arc-shaped through...
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The invention discloses a variable-cross-section gas inlet channel distributing valve for a natural gas engine, and aims to solve the problem that the air supply quantity of a spiral and tangential gas inlet channel of an existing natural gas engine cannot be changed. The variable-cross-section gas inlet channel distributing valve for the natural gas engine comprises a valve box (1), a valve cover (2), a gas distributing sliding block (3) and a guiding column (4), wherein the valve box (1) comprises a box rear wall and a bottom curved-surface wall (10); the gas distributing sliding block c(3) is mounted in the valve box (1); a sliding block bottom curved surface (9) of the gas distributing sliding block (3) is in contact connection with a bottom curved-surface wall (10) of the valve box (1); an arc-shaped groove of the gas distributing sliding block (3) sleeves a hollow annular boss (11) on the box rear wall; the valve cover (2) is mounted on the valve box (1) and is connected with the valve box (1) by bolts; one end of the guiding column (4) is in threaded connection with a threaded hole (8) in the symmetric center of the arc-shaped groove of the gas distributing sliding block (3); and the other end of the guiding column (4) extends out from a boss through hole of the hollow annular boss (11) and an arc-shaped through hole in the box rear wall.
Description
technical field [0001] The invention relates to an air intake device belonging to the technical field of natural gas engine air intake, more precisely, the invention relates to a variable cross-section intake passage gas distribution valve of a natural gas engine. Background technique [0002] As a high-quality and efficient clean energy and chemical raw material, natural gas plays an important role in improving the energy structure, protecting the atmospheric environment, and alleviating the shortage of oil supply. Therefore, natural gas is increasingly favored by major automobile manufacturers. After the traditional diesel engine is converted into a natural gas engine, the emission of soot and nitrogen oxides can be greatly reduced, and at the same time, the dependence on petroleum is reduced. At present, natural gas engines generally use the multi-point injection method of the intake port for intake air. The research results show that the gas mixture distribution in the ...
Claims
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IPC IPC(8): F02D9/08
CPCF02D9/08
Inventor 王忠恕邵明志付晓东许允
Owner JILIN UNIV