Lightweight wear-resistant engine valve

Abstract

The utility model discloses a light wear-resistant engine valve which comprises a tappet head, a tappet and a valve head. A valve lock groove is formed in the upper end of the tappet rod, and wavy micro-texture textures are distributed on the surface of the tappet rod. The wave-shaped micro-texture textures surround the tappet by one circle and are longitudinally distributed along the tappet part, the tappet is connected with the valve head with a hollow groove in the lower end in a welded mode at the tappet valve connecting position, the hollow part comprises the valve head hollow groove and a connecting position hollow groove, and liquid sodium is contained in the valve head with the hollow groove; the volume of the hollow groove is increased through the hollow groove at the joint, the weight of the valve is reduced, and meanwhile the fluidity and the contact area are increased to facilitate heat dissipation; meanwhile, frictional wear is reduced through surface texturing, and the service life is prolonged; the problems that in the prior art, an air valve is not resistant to abrasion, and power and oil consumption of an automobile are easily affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of engine valves, in particular to a lightweight and wear-resistant engine valve. Background Art

[0002] The valve is a very important component in the engine. It needs to open and close mechanically many times to inhale air for combustion and discharge the exhaust gas after combustion. Based on the function of inhaling air and discharging exhaust gas, it is divided into intake valve and exhaust valve.

[0003] At present, the requirements for energy conservation, emission reduction and performance of automobiles are constantly increasing. The quality of valves affects the fuel consumption of automobiles. However, the valves are greatly worn during the long-term high-speed reciprocating motion and friction with the valve guide. The wear of the valves can easily lead to eccentric wear problems, affecting the power and fuel consumption of the automobile.

[0004] Therefore, the utility model discloses a lightweight and wear-resistant engine valve, which solves the problem in the prior art that the valve is not wear-resistant and easily affects the power and fuel consumption of the car. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems existing in the prior art and provide a lightweight, wear-resistant new engine valve;

[0006] To achieve the above-mentioned novel purpose, the utility model is realized by the following technical scheme: a lightweight and wear-resistant engine valve, comprising: a tappet head, a tappet and a valve head;

[0007] The upper end of the tappet is provided with a valve lock groove, and the surface of the tappet is distributed with a wavy micro-texture; the wavy micro-texture surrounds the tappet and is distributed longitudinally along the tappet portion; the tappet is welded to a valve head with a hollow groove at the lower end at the tappet valve connection, the hollow part includes a hollow groove in the valve head and a hollow groove at the connection, and liquid sodium is contained in the valve head with the hollow groove;

[0008] Furthermore, a wavy micro-texture is longitudinally distributed on the surface of the tappet, and the wavy micro-texture is located at a contact position between the tappet and the valve guide;

[0009] Furthermore, there is a hollow groove at the connection between the upper end of the valve head and the tappet valve, and the hollow groove at the connection can enhance the fluidity and contact area of ​​the connection between the valve head and the tappet valve;

[0010] Furthermore, alloy is built-up on the surface of the valve head to improve the strength of the valve head part.

[0011] The beneficial effects of the utility model are:

[0012] The utility model discloses a lightweight and wear-resistant engine valve, comprising: a tappet head, a tappet and a valve head; the tappet has a valve lock groove at the upper end, and a wave-like micro-texture texture is distributed on the surface of the tappet; the wave-like micro-texture texture surrounds the tappet and is distributed longitudinally along the tappet part; the tappet is welded to the valve head with a hollow groove at the lower end at the tappet valve connection, the hollow part includes a hollow groove in the valve head and a hollow groove at the connection, and liquid sodium is filled in the valve head with the hollow groove;

[0013] The volume of the hollow groove is expanded by the hollow groove at the connection, which reduces the weight of the valve while increasing the fluidity and contact area, which is beneficial to heat dissipation; at the same time, the surface texturing reduces friction and wear and extends the service life; and solves the problem of the valve being not resistant to wear in the prior art and easily affecting the power and fuel consumption of the car. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0015] Figure 1 It is a schematic diagram of the overall structure of a lightweight and wear-resistant engine valve;

[0016] Figure 2 The diagram is a cross-sectional diagram of a valve head of a lightweight and wear-resistant engine valve.

[0017] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0018] 1. Tappet head; 2. Tappet; 3. Valve head; 4. Valve lock groove; 5. Wavy micro-texture; 6. Tappet-valve connection; 7. Valve head profile; 8. Hollow groove in the head; 9. Hollow groove in the connection. DETAILED DESCRIPTION

[0019] The utility model discloses a lightweight and wear-resistant engine valve, comprising: a tappet head, a tappet and a valve head;

[0020] The upper end of the push rod is provided with a valve lock groove, and the surface of the push rod is distributed with a wavy micro-texture; the wavy micro-texture surrounds the push rod and is distributed longitudinally along the push rod part; the push rod is welded to the valve head containing a hollow groove at the lower end at the push rod valve connection, the hollow part includes a hollow groove in the valve head and a hollow groove at the connection, and liquid sodium is filled in the valve head containing the hollow groove.

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Example 1

[0023] like Figure 1 As shown, the lightweight and wear-resistant engine valve comprises a tappet head 1, a tappet 2 and a valve head 3. A valve lock clamp 4 is arranged between the tappet head 1 and the tappet 2 for installing a lock. A plurality of longitudinally arranged wavy micro-textures 5 are provided on the surface of the tappet 2, which are located at the position where the tappet 2 contacts the valve guide to make the stress distribution on the friction surface more uniform. A hollow valve head 3 is welded and connected to the bottom of the tappet 2. A head hollow groove 8 is provided in the valve head 3, and liquid sodium is stored in the hollow groove 8. A hollow groove 9 at the connection is located above the head hollow groove 8. A larger cavity volume can store more liquid sodium, thereby reducing the weight of the valve.

[0024] In this embodiment, a wavy micro-texture 5 is formed on the surface of the tappet 2 near the valve lock groove 4, and the wavy micro-texture 5 has a reasonable density.

[0025] In this embodiment, by adopting the above technical solution, the wear debris generated by the friction between the tappet 2 and the valve guide is stored together with the lubricant in the wavy micro-texture 5. The wavy micro-texture 5 with a reasonable density has good fluidity, which is conducive to secondary lubrication and improves the wear resistance of the tappet 2.

[0026] In this embodiment, the hollow groove 9 at the connection is located above the hollow groove 8 at the head, and this portion is equivalent to a portion of the hollow groove of the tappet 2 .

[0027] In this embodiment, by adopting the above technical solution, the hollow groove 9 at the connection expands the volume of the hollow groove 8, which reduces the weight and increases the fluidity and contact area, which is beneficial to heat dissipation.

[0028] In this embodiment, the surface of the valve head 3 is built-up with alloy.

[0029] In this embodiment, by adopting the above technical solution, the valve head 3 is built-up with alloy to improve the overall structural strength of the valve.

[0030] In summary, the lightweight and wear-resistant engine valve disclosed in the utility model comprises: a tappet head, a tappet and a valve head; the tappet has a valve lock groove at the upper end, and a wavy micro-texture is distributed on the surface of the tappet; the wavy micro-texture surrounds the tappet and is distributed longitudinally along the tappet part, the tappet is welded to the valve head with a hollow groove at the lower end at the tappet valve connection, the hollow part includes a hollow groove in the valve head and a hollow groove at the connection, and liquid sodium is contained in the valve head with the hollow groove;

[0031] The volume of the hollow groove is expanded by the hollow groove at the connection, which reduces the weight of the valve while increasing the fluidity and contact area, which is beneficial to heat dissipation; at the same time, the surface texturing reduces friction and wear and extends the service life; and solves the problem of the valve being not resistant to wear in the prior art and easily affecting the power and fuel consumption of the car.

[0032] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific implementation methods described.

Claims

1. A lightweight and wear-resistant engine valve, characterized in that: It includes a tappet head, a tappet and a valve head, wherein the upper end of the tappet is provided with a valve lock groove, and the surface of the tappet is distributed with a wavy micro-texture, which surrounds the hollow rod part and is distributed longitudinally along the tappet part. The tappet is welded to the valve head containing a hollow groove at the lower end at the tappet valve connection, and the hollow part includes a hollow groove of the valve head and a hollow groove at the connection, and liquid sodium is contained in the valve head containing the hollow groove.

2. A lightweight and wear-resistant engine valve according to claim 1, characterized in that: The tappet surface has a wavy micro-texture distributed longitudinally, and the wavy micro-texture is located at a position where the tappet contacts the valve guide.

3. A lightweight and wear-resistant engine valve according to claim 1, characterized in that: A hollow groove is provided at the connection between the upper end of the valve head and the tappet valve.

4. A lightweight and wear-resistant engine valve according to claim 1, characterized in that: The valve head surface is built-up with alloy.

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