Air-cooled cylinder head
By designing a "cross" shape cross air duct and vertical air duct on the cylinder head, the problems of obstruction of air intake and exhaust and poor heat dissipation effects of traditional cylinder heads are solved, and more efficient air intake and exhaust and heat dissipation effects are achieved.
Patent Information
- Application Number
- CN202421107637.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-05-21
AI Technical Summary
The angles of the intake and exhaust ducts in the traditional cylinder head cause the intake and exhaust ducts to be blocked, affecting efficiency. At the same time, the heat sink cannot effectively dissipate the combustion chamber, intake and exhaust ducts, resulting in poor heat dissipation effect.
An air-cooled cylinder head is designed, which includes a transverse air passage and a vertical air passage that runs through the main body of the cylinder head, forming a "cross-shaped structure. The transverse air passage is located on the same side of the intake passage and the exhaust passage, and the vertical air passage is located above the combustion chamber. Cold air flows along these air passages through the valve cover chamber, combustion chamber, intake passage and exhaust passage, expanding the heat dissipation area and efficiency.
The intake and exhaust efficiency of the cylinder head is improved, and obstacles are prevented. At the same time, the heat dissipation area and efficiency are expanded through multi-directional heat dissipation, which improves the overall heat dissipation effect.
Smart Images
Figure CN222615441U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of engines, in particular to an air-cooled cylinder head. Background Art
[0002] The cylinder head is a component connected to the end of the engine cylinder. It is responsible for adjusting valves and fuel injection during engine operation. The intake inlet and exhaust outlet in the traditional cylinder head have a certain angle, which makes it easy for the intake and exhaust in the cylinder head to be blocked, affecting the intake and exhaust efficiency of the cylinder head.
[0003] Meanwhile, a heat sink is provided around the conventional cylinder head to dissipate heat from the cylinder head. However, the heat sink can only dissipate heat around the cylinder head and cannot dissipate heat from the high-temperature combustion chamber, intake duct and exhaust duct, resulting in poor heat dissipation effect of the cylinder head. Utility Model Content
[0004] The utility model aims to provide an air-cooled cylinder head, which can improve the air intake and exhaust efficiency of the cylinder head, expand the heat dissipation area of the cylinder head, and improve the heat dissipation efficiency.
[0005] The air-cooled cylinder head comprises a cylinder head body, which is provided with an air inlet and an exhaust duct. The key point is that a horizontal air duct and a vertical air duct which penetrate the cylinder head body are provided on the cylinder head body, and the horizontal air duct and the vertical air duct are in a "cross" shape.
[0006] The horizontal and vertical air ducts on the cylinder head body can dissipate heat from different directions, which can not only expand the heat dissipation area of the cylinder head, but also improve the heat dissipation effect and improve the heat dissipation efficiency.
[0007] It is further described that the transverse air duct is arranged on the same side of the intake duct and the exhaust duct and is away from the spark plug mounting hole.
[0008] The cold air flows along the transverse air duct through the valve cover chamber, combustion chamber, intake duct and exhaust duct, which expands the heat dissipation area of the cylinder head, helps the valve cover chamber, combustion chamber, intake duct and exhaust duct to dissipate heat, and improves the heat dissipation effect.
[0009] Further description, the vertical air duct is located above the combustion chamber.
[0010] Further described, the hole center line of the inlet duct and the hole center line of the exhaust duct intersect at 140°±2°.
[0011] Increasing the setting angles of the air inlet of the intake duct and the air outlet of the exhaust duct can improve the intake and exhaust efficiency of the cylinder head and prevent the intake and exhaust of the cylinder head from being blocked.
[0012] Further description, the transverse air duct is composed of three layers, which are respectively the first transverse air duct, the second transverse air duct and the third transverse air duct from top to bottom along the cylinder head body, and the air inlets of the first transverse air duct, the second transverse air duct and the third transverse air duct overlap.
[0013] The multi-layer air duct can utilize the cold air more efficiently to dissipate the heat of the valve cover chamber, combustion chamber, intake duct and exhaust duct, thereby expanding the heat dissipation area and improving the heat dissipation effect.
[0014] It is further described that the vertical air duct is surrounded by a valve cover chamber, a combustion chamber, an intake pipe, and an exhaust pipe.
[0015] The cold air flows along the vertical air duct through the valve cover chamber, combustion chamber, intake duct and exhaust duct, which expands the heat dissipation area of the cylinder head, helps the valve cover chamber, combustion chamber, intake duct and exhaust duct to dissipate heat, and improves the heat dissipation effect.
[0016] Beneficial effects: It improves the intake and exhaust efficiency of the cylinder head and prevents the intake and exhaust of the cylinder head from being blocked. At the same time, it dissipates heat from different directions to various parts of the cylinder head, expands the heat dissipation area of the cylinder head, improves the heat dissipation effect, and improves the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a top view of the utility model;
[0018] Figure 2 for Figure 1 Sectional drawing;
[0019] Figure 3 This is the front view of the utility model;
[0020] Figure 4 This is a rear view of the utility model;
[0021] Figure 5 It is the left view of the utility model;
[0022] Figure 6 It is the right view of the utility model;
[0023] Figure 7 It is a bottom view of the utility model. DETAILED DESCRIPTION
[0024] The specific implementation manner and working principle of the utility model are further described in detail below with reference to the accompanying drawings.
[0025] like Figure 1-Figure 7 As shown, the air-cooled cylinder head comprises a cylinder head body 1, and cooling fins 6 are arranged on four sides of the cylinder head body 1. A concave combustion chamber 5 is arranged at the bottom of the cylinder head body 1, and a spark plug mounting hole 51 is arranged in the combustion chamber 5;
[0026] An intake passage 3 and an exhaust passage 4 are provided on the top of the combustion chamber 5. The intake port of the intake passage 3 and the exhaust port of the exhaust passage 4 respectively pass through the cylinder head body 1 from opposite sides of the cylinder head body 1, and the hole center line of the intake port of the intake passage 3 and the hole center line of the exhaust port of the exhaust passage 4 are substantially parallel to the horizontal plane; the exhaust port of the intake passage 3 and the intake port of the exhaust passage 4 are both bent toward the combustion chamber 5 and are communicated with the combustion chamber 5;
[0027] The intersection of the centerline of the inlet duct 3 and the centerline of the exhaust duct 4 is between 138° and 142°, and the best angle is 140°.
[0028] The valve cover chamber 2 is arranged above the intake passage 3 and the exhaust passage 4 , and an intake duct 21 and an exhaust duct 22 are symmetrically arranged in the valve cover chamber 2 . The intake duct 21 extends into the intake passage 3 , and the exhaust duct 22 extends into the exhaust passage 4 .
[0029] The cylinder head body 1 is also provided with a horizontal air duct 71 and a vertical air duct 72 penetrating the cylinder head body 1, and the horizontal air duct 71 and the vertical air duct 72 are in a "cross" structure;
[0030] The transverse air duct 71 is surrounded by the heat sink 6, the combustion chamber 5, the air intake duct 3, the exhaust duct 4 and the valve cover chamber 2, and is located on the same side of the air intake duct 3 and the exhaust duct 4, and is away from the spark plug mounting hole 51;
[0031] The transverse air duct 71 has three layers, which are respectively the first transverse air duct 711, the second transverse air duct 712 and the third transverse air duct 713 from top to bottom on the cylinder head body 1, and the air inlets of the first transverse air duct 711, the second transverse air duct 712 and the third transverse air duct 713 overlap;
[0032] The air inlet of the transverse air duct 71 is arranged on the air inlet side of the air inlet duct 3 ; the three air outlets of the transverse air duct 71 are all arranged on the air outlet side of the exhaust duct 3 .
[0033] The vertical air duct 72 is surrounded by the combustion chamber 5, the intake pipe 3, the exhaust pipe 4 and the valve cover chamber 2. The air inlet of the vertical air duct 72 is arranged on the side of the spark plug mounting hole 51, and the air outlet of the vertical air duct 72 is arranged on the side away from the spark plug mounting hole 51.
[0034] The cold wind dissipates heat to the combustion chamber 5 , the intake pipe 3 , the exhaust pipe 4 and the valve cover chamber 2 along the horizontal air duct 71 and the vertical air duct 72 .
Claims
1. An air-cooled cylinder head, comprising a cylinder head body (1), wherein the cylinder head body (1) is provided with an intake passage (3) and an exhaust passage (4), characterized in that: A horizontal air duct (71) and a vertical air duct (72) penetrating the cylinder head body (1) are arranged on the cylinder head body (1); the horizontal air duct (71) and the vertical air duct (72) are in a "cross"-shaped structure.
2. The air-cooled cylinder head according to claim 1, characterized in that: The transverse air duct (71) is arranged on the same side of the air inlet duct (3) and the exhaust duct (4), and is away from the spark plug mounting hole (51).
3. The air-cooled cylinder head according to claim 1 or 2, characterized in that: The vertical air duct (72) is located above the combustion chamber (5).
4. The air-cooled cylinder head according to claim 1 or 2, characterized in that: The hole center line of the air inlet passage (3) and the hole center line of the exhaust passage (4) intersect at an angle of 140°±2°.
5. The air-cooled cylinder head according to claim 1 or 2, characterized in that: The transverse air duct (71) has three layers, which are respectively a first transverse air duct (711), a second transverse air duct (712) and a third transverse air duct (713) from top to bottom along the cylinder head body (1), and the air inlets of the first transverse air duct (711), the second transverse air duct (712) and the third transverse air duct (713) overlap.
6. The air-cooled cylinder head according to claim 3, characterized in that: The vertical air duct (72) is surrounded by the valve cover chamber (2), the combustion chamber (5), the air intake duct (3) and the exhaust duct (4).