Air guide system capable of effectively cooling cylinder head

Abstract

The utility model discloses an air guide system capable of effectively cooling a cylinder head, which comprises a crankcase body, a crankcase cover and the cylinder head, the upper part of the crankcase body is a crankcase cylinder neck, the cylinder head is arranged on the cylinder head mounting surface of the crankcase cylinder neck, and the cylinder head is covered with a cylinder head air guide cover; the air cylinder head wind scooper is located at an exhaust side opening of the air cylinder head and makes contact with the side, close to the air cylinder head, of the crankcase cover to define an annular reserved connector. The air guide cover has the beneficial effects that the first air guide plate and the second air guide plate can enable cooling air to form beneficial turbulent flow air beams in the air guide cover of the air cylinder head, and the retention time of the cooling air at the air cylinder head is prolonged, so that the cooling efficiency of an engine is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of general gasoline engines, in particular to an air guide system for effectively cooling a cylinder head. Background Art

[0002] Universal gasoline engines are easy to use and have a wide range of applications. Therefore, they have a wide range of applications. During the use of universal gasoline engines, the cylinder heads will heat up. In order to ensure the normal operation of universal gasoline engines and increase their service life, it is essential to help the cylinder heads dissipate heat.

[0003] The traditional approach is to use the structure of the cylinder head itself to construct multiple cooling air ducts, so that cooling air flows through the cooling air ducts to take away the heat from the cylinder head and help the cylinder head dissipate heat.

[0004] As the cylinder diameter and displacement of general gasoline engines gradually increase, the heat load of the cylinder head is greatly increased. The original cooling air duct is difficult to meet the increasing heat dissipation. Strengthening the heat dissipation capacity of the cylinder head has become a current research hotspot. Utility Model Content

[0005] The utility model aims to provide an air guide system for effectively cooling a cylinder head, which can prolong the retention time of cooling air in the cylinder head and improve the cooling efficiency of the engine.

[0006] An air guide system for effectively cooling a cylinder head comprises a crankcase body, a crankcase cover and a cylinder head, wherein the upper portion of the crankcase body is a crankcase neck, and a cylinder head is mounted on the cylinder head mounting surface of the crankcase neck. The key point is that: the cylinder head is covered with a cylinder head air guide cover;

[0007] The cylinder head air guide cover is located at the exhaust side of the cylinder head and is open, and is in contact with the side of the crankcase cover close to the cylinder head to form a ring-shaped reserved interface.

[0008] The cylinder head air guide cover can prolong the retention time of cooling air in the cylinder head and improve the engine cooling efficiency.

[0009] At the same time, the crankcase cover and the cylinder head air guide cover touch each other to form an annular reserved interface, which is conducive to the expansion, improvement and special configuration of the engine, and enhances the versatility of the engine.

[0010] Further, the cylinder head air guide cover comprises a top plate, an upper side plate, and a lower side plate, the top plate is provided with a cylinder head connection port and a spark plug hole, an air guide plate structure is provided inside the top plate, and the air guide plate structure comprises a first air guide plate and a second air guide plate;

[0011] The first air guide plate is arranged between the spark plug hole and the upper side plate, and the second air guide plate is arranged on one side of the spark plug hole.

[0012] Furthermore, the first air guide plate is an "L"-shaped structure, with a short side located above the spark plug hole and a long side extending to the upper side plate.

[0013] Furthermore, the second air guide plate is of a "V"-shaped structure and is located at the spark plug hole close to the exhaust side of the cylinder head, and both ends of the second air guide plate extend toward the upper side plate.

[0014] Furthermore, the short side of the first air guide plate points to the second air guide plate.

[0015] The special-shaped structures of the first air guide plate and the second air guide plate can form a beneficial turbulent wind beam in the cylinder head air guide cover, thereby prolonging the retention time of the cooling air in the cylinder head, thereby improving the cooling efficiency of the engine.

[0016] Furthermore, the tails of the upper side plate and the lower side plate are both provided with a slot; the edge of the cylinder head mounting surface of the crankcase cylinder neck is provided with a discontinuous rib;

[0017] The discontinuous rib is clamped in the clamping groove.

[0018] Choosing snap-on installation can reduce installation time, improve assembly efficiency, and facilitate later maintenance.

[0019] Furthermore, a guide lug is provided at the rear portion of the lower side plate, the guide lug is located at the exhaust side of the cylinder head and is connected to the air guide plate of the crankcase cover.

[0020] When installing the cylinder head air shroud, the guide ears can quickly align the crankcase cover and the cylinder head air shroud, and assist the discontinuous ribs and the slots to be installed in place.

[0021] Beneficial effects: The first air guide plate and the second air guide plate in the utility model can form a beneficial turbulent wind beam in the cylinder head air guide cover, prolong the retention time of the cooling air in the cylinder head, and thus improve the cooling efficiency of the engine. The snap-on installation of the slots and discontinuous ribs can reduce the installation time, improve the assembly efficiency, and facilitate later maintenance. At the same time, the guide ears can help the crankcase cover and the cylinder head air guide cover to be quickly aligned, assist the discontinuous ribs and the slots to be installed in place, and further improve the installation efficiency of the engine cylinder head air guide components. The crankcase cover and the cylinder head air guide cover enclose an annular reserved interface, which is conducive to the expansion and improvement of the engine and the special configuration, and enhances the versatility of the engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of the assembly of the utility model;

[0023] Figure 2It is a schematic diagram of the assembly side of the utility model;

[0024] Figure 3 for Figure 2 A partial enlarged schematic diagram;

[0025] Figure 4 Provide a three-dimensional schematic diagram of the engine assembly;

[0026] Figure 5 This is a schematic diagram of the inside of the cylinder head air shroud. DETAILED DESCRIPTION

[0027] The specific implementation manner and working principle of the utility model are further described in detail below with reference to the accompanying drawings.

[0028] like Figure 1-Figure 4 As shown, an air guide system for effectively cooling a cylinder head is provided, wherein a crankcase body 1 is provided, the upper portion of the crankcase body 1 is a crankcase cylinder neck 2, a cylinder head 3 is installed on the cylinder head mounting surface of the crankcase cylinder neck 2, a cylinder head air guide cover 4 is covered on the cylinder head 3, and the cylinder head air guide cover 4 is located at the exhaust side of the cylinder head 3 and is open;

[0029] A crankcase cover 5 is installed on the side wall of the crankcase body 1 , and a side of the crankcase cover 5 close to the cylinder head 3 contacts the cylinder head air guide cover 4 to form an annular reserved interface 413 .

[0030] like Figure 1 , Figure 2 , Figure 5 As shown, the cylinder head air guide cover 4 is composed of a top plate 41, an upper side plate 42, and a lower side plate 43. The top plate 41 is provided with a cylinder head connection port 411 and a spark plug hole 412. The spark plug hole 412 is located above the cylinder head connection port 411 and communicates with the cylinder head connection port 411.

[0031] The top plate 41 is provided with an air guide plate structure 415 inside, and the air guide plate structure 415 includes a first air guide plate 4151 and a second air guide plate 4152;

[0032] like Figure 5 As shown, the first air guide plate 4151 is an "L"-shaped structure and is disposed between the spark plug hole 412 and the upper side plate 42. The short side of the first air guide plate is located above the spark plug hole 412 and points to the second air guide plate 4152. The long side of the first air guide plate extends to the upper side plate 42.

[0033] The second air guide plate 4152 is a "V"-shaped structure, and is disposed on the exhaust side of the spark plug hole 412 close to the cylinder head 3, and both ends of the second air guide plate 4152 extend toward the upper side plate 42;

[0034] like Figure 4 , Figure 5 As shown, the upper side plate 42 and the lower side plate 43 are both provided with a slot 416 at the rear end, and the edge of the cylinder head mounting surface of the crankcase cylinder neck 2 is provided with a discontinuous rib 21. After the cylinder head air guide cover 4 covers the cylinder head 3, the slot 416 is aligned with the discontinuous rib 21, so that the discontinuous rib 21 is clamped in the slot 416, so that the cylinder head air guide cover 4 is movably connected to the crankcase cylinder neck 2.

[0035] like Figure 2 , Figure 3 As shown, a guide lug 414 is provided at the rear of the lower side plate 43 , and the guide lug 414 is located at the exhaust side of the cylinder head 3 and connected to the air guide plate of the crankcase cover 5 .

Claims

1. An air guide system for effectively cooling a cylinder head, comprising a crankcase body (1), a crankcase cover (5) and a cylinder head (3), wherein the upper portion of the crankcase body (1) is a crankcase neck (2), and the cylinder head (3) is mounted on the cylinder head mounting surface of the crankcase neck (2), characterized in that , the cylinder head (3) is covered with a cylinder head air guide cover (4); The cylinder head air guide cover (4) is located at the exhaust side of the cylinder head (3) and is open, and contacts the side of the crankcase cover (5) close to the cylinder head (3) to form an annular reserved interface (413).

2. The air guide system for effectively cooling the cylinder head according to claim 1, characterized in that The cylinder head air guide cover (4) comprises a top plate (41), an upper side plate (42), and a lower side plate (43); a cylinder head connection port (411) and a spark plug hole (412) are formed on the top plate (41); an air guide plate structure (415) is provided inside the top plate (41); the air guide plate structure (415) comprises a first air guide plate (4151) and a second air guide plate (4152); The first air guide plate (4151) is arranged between the spark plug hole (412) and the upper side plate (42), and the second air guide plate (4152) is arranged on one side of the spark plug hole (412).

3. The air guide system for effectively cooling the cylinder head according to claim 2, characterized in that: The first air guide plate (4151) is an "L"-shaped structure, with its short side located above the spark plug hole (412) and its long side extending to the upper side plate (42).

4. The air guide system for effectively cooling a cylinder head according to claim 2, characterized in that: The second air guide plate (4152) is of a "V"-shaped structure and is located near the spark plug hole (412) and on the exhaust side of the cylinder head (3). Both ends of the second air guide plate (4152) extend toward the upper side plate (42).

5. An air guide system for effectively cooling a cylinder head according to claim 3 or 4, characterized in that: The short side of the first air guide plate (4151) points to the second air guide plate (4152).

6. The air guide system for effectively cooling a cylinder head according to claim 2, characterized in that: The tails of the upper side plate (42) and the lower side plate (43) are both provided with a clamping groove (416); the edge of the cylinder head mounting surface of the crankcase cylinder neck (2) is provided with a discontinuous rib (21); The discontinuous rib (21) is clamped in the clamping groove (416).

7. The air guide system for effectively cooling a cylinder head according to claim 6, characterized in that: A guide lug (414) is provided at the rear of the lower side plate (43), and the guide lug (414) is located on the exhaust side of the cylinder head (3) and is connected to the air guide plate of the crankcase cover (5).

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