Engine water jacket, engine and vehicle

Abstract

The utility model discloses an engine water jacket, an engine and a vehicle, and the engine water jacket comprises a cylinder cover upper water jacket which is provided with a first water outlet flow channel and a second water outlet flow channel; the cylinder cover lower water jacket is respectively communicated with the cylinder cover upper water jacket through a first flow channel and a second flow channel; the first water outlet flow channel and the second water outlet flow channel are respectively communicated with the cylinder body water jacket, and the cylinder body water jacket is provided with a water outlet; the first water outlet flow channel is arranged on the side, away from the second flow channel, of the first flow channel, the second water outlet flow channel is arranged on the side, away from the first flow channel, of the second flow channel, the distance between the water outlet and the second water outlet flow channel is smaller than that between the water outlet and the first water outlet flow channel, and the sectional area of the first water outlet flow channel is smaller than that of the second water outlet flow channel. The sectional area of the first water outlet flow channel is smaller than that of the second water outlet flow channel, so that more cooling media flow to the second flow channel, and the cooling effect is improved.

Claims

1. An engine water jacket, characterized in that: include: A cylinder head upper water jacket (10), wherein the cylinder head upper water jacket (10) is provided with a first water outlet flow channel (11) and a second water outlet flow channel (12); A cylinder head lower water jacket (20), wherein the cylinder head lower water jacket (20) is connected to the cylinder head upper water jacket (10) through a first flow channel (24) and a second flow channel (25) respectively, so as to supply cooling medium to the cylinder head upper water jacket (10); A cylinder water jacket (30), the cylinder water jacket (30) being arranged on a side of the cylinder head lower water jacket (20) away from the cylinder head upper water jacket (10), the first water outlet flow channel (11) and the second water outlet flow channel (12) being respectively connected to the cylinder water jacket (30) to guide the cooling medium to flow from the cylinder head upper water jacket (10) to the cylinder water jacket (30), the cylinder water jacket (30) being provided with a water outlet (31) to guide the cooling medium to be discharged from the engine water jacket (100); wherein, The first water outlet channel (11) is arranged on a side of the first channel (24) away from the second channel (25), the second water outlet channel (12) is arranged on a side of the second channel (25) away from the first channel (24), the distance between the water outlet (31) and the second water outlet channel (12) is smaller than the distance between the water outlet (31) and the first water outlet channel (11), and the cross-sectional area of ​​the first water outlet channel (11) is smaller than the cross-sectional area of ​​the second water outlet channel (12).

2. The engine water jacket according to claim 1, characterized in that: The cylinder head upper water jacket (10) comprises: An upper water jacket body (13), the upper water jacket body (13) being connected to the first flow channel (24) and the second flow channel (25) respectively, and having a first end (131) and a second end (132) in the length direction of the upper water jacket body (13); A first extension portion (14), the first extension portion (14) being arranged at the first end (131), and the first extension portion (14) being at least partially configured as the first water outlet channel (11); A second extension portion (15), wherein the second extension portion (15) is arranged at the second end (132), and the second extension portion (15) is at least partially configured as the second water outlet channel (12).

3. The engine water jacket according to claim 2, characterized in that: The cylinder head upper water jacket (10) further comprises: a third extension portion (16), the third extension portion (16) being arranged on the upper water jacket body (13) and extending in the direction of the cylinder head lower water jacket (20), one end of the first flow channel (24) being connected to the third extension portion (16) and the other end being connected to the cylinder head lower water jacket (20); A fourth extension portion (17), the fourth extension portion (17) being arranged on the upper water jacket body (13) and extending in the direction of the cylinder head lower water jacket (20), the second flow channel (25) having one end connected to the fourth extension portion (17) and the other end connected to the cylinder head lower water jacket (20).

4. The engine water jacket according to claim 1, characterized in that: The cross-sectional area of ​​the first water outlet channel (11) is S1, the cross-sectional area of ​​the second water outlet channel (12) is S2, and 15% S2≤S1≤85% S2.

5. The engine water jacket according to claim 1, characterized in that: A third flow channel (21), a fourth flow channel (22) and a fifth flow channel (23) are also provided between the cylinder head lower water jacket (20) and the cylinder head upper water jacket (10) to supply cooling medium to the cylinder head upper water jacket (10); the third flow channel (21), the fourth flow channel (22) and the fifth flow channel (23) are arranged in sequence and spaced apart along the length direction of the cylinder head upper water jacket (10); the cross-sectional area of ​​the fourth flow channel (22) is larger than the cross-sectional areas of the third flow channel (21) and the fifth flow channel (23).

6. The engine water jacket according to claim 5, characterized in that: The first flow channel (24) and the second flow channel (25) are arranged at one end of the cylinder head upper water jacket (10), and the third flow channel (21), the fourth flow channel (22) and the fifth flow channel (23) are arranged at the opposite end of the cylinder head upper water jacket (10).

7. The engine water jacket according to claim 5, characterized in that: Also includes: An inlet water jacket (40) is located on one side of the cylinder head lower water jacket (20) in the width direction of the engine water jacket (100) and is connected to the cylinder head lower water jacket (20) to guide the cooling medium to flow from the inlet water jacket (40) to the cylinder head lower water jacket (20); wherein, The water inlet jacket (40) is provided with a water inlet (41), and the water inlet (41) is used to guide the cooling medium to flow from outside the engine water jacket (100) to the water inlet jacket (40). The water inlet (41) is arranged at one end of the water inlet jacket (40) close to the water outlet (31).

8. The engine water jacket according to claim 7, characterized in that: The water inlet jacket (40) comprises a first side (42), a second side (43), a third side (44) and a fourth side (45); the first side (42) and the second side (43) are opposite sides of the water inlet jacket (40); the first side (42) and the second side (43) are arranged at intervals along the length direction; the first side (42) is closer to the water outlet (31) than the second side (43); the third side (44) and the fourth side (45) are arranged between the first side (42) and the second side (43); the third side (44) is closer to the cylinder head lower water jacket (20) than the fourth side (45); and in the direction from the first side (42) to the second side (43), the distance between the fourth side (45) and the third side (44) at least partially gradually decreases.

9. An engine, characterized in that: An engine water jacket (100) is provided in the engine, and the engine water jacket (100) is the engine water jacket (100) according to any one of claims 1 to 8.

10. A vehicle, characterized in that: Comprising the engine as claimed in claim 9.

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