CN201461112U

CN201461112U - Cooling water passage between cylinders of crankcase of engine

Info

Publication number: CN201461112U
Application number: CN200920126845XU
Authority: CN
Inventors: 刘智军; 邓伟; 徐勇; 梁文锋
Original assignee: Chongqing Changan Automobile Co Ltd
Current assignee: Chongqing Changan Automobile Co Ltd
Priority date: 2009-03-30
Filing date: 2009-03-30
Publication date: 2010-05-12
Anticipated expiration: 2019-03-30

Abstract

The utility model provides a cooling water passage between cylinders of a crankcase of an engine, which comprises the crankcase, a head gasket and a cylinder cover, wherein the crankcase is provided with a crankcase cylinder hole water jacket; the cylinder cover is provided with a cylinder cover water jacket; the cooling water passage is arranged vertically among cylinder holes of the crankcase; one end of the cooling water passage is communicated with the crankcase cylinder hole water jacket, while the other end is communicated with the cylinder cover water jacket through a head gasket water hole; the cooling water passage consists of a water passage communicated with the crankcase cylinder hole water jacket and a water passage communicated with the cylinder cover water jacket through the head gasket water hole; the two water passages are all arranged on the top of the crankcase at an included angle, and are communicated with each other at the bottom end; and each water passage comprises two sections of a phi A water passage and two sections of a phi B water passage. The structure can effectively reduce the temperature among crankcase cylinder holes and in a cylinder cover bridge area, reduce a temperature difference value around a cylinder sleeve, decrease the hot-deformation of the cylinder sleeve so as to improve the durability and reliability of the cylinder sleeve, and reduce engine oil consumption and exhaust emission of the engine.

Description

Cooling water channel between a kind of engine crankcase cylinders

Technical field

The utility model proposes a kind of cooling technology of engine crankcase, be specifically related to the design of cooling channel between the engine crankcase cylinders hole.

Background technique

As depicted in figs. 1 and 2, usually the cooling water channel of engine crankcase is that a part of cooling water flows to the crankcase rear end from crankcase 103 front end edge crankcase water jackets 107, a part flows into cylinder cap water jacket 113 through the water hole of cylinder pad 102,115 is cylinder sleeve among the figure, arrow is the flow of cooling water direction, and as seen it is not provided with vertical cooling water channel and cools off between two cylinder holes 114.This kind cooling structure of crankcase can satisfy the motor of less heat load.And for more compact structure, the motor that power per liter is higher and oil consumption is littler then is not suitable for.

Summary of the invention

Of the present utility model at the deficiency of cooling off between the crankcase cylinders hole, cooling water channel between a kind of engine crankcase cylinders is provided, has connected crankcase and the cylinder cap water jacket reduces temperature between the crankcase cylinders hole by two sections Φ A water channels, two sections Φ B water channels and cylinder pad water hole.

The technical solution of the utility model is as follows:

Cooling water channel between a kind of engine crankcase cylinders comprises crankcase, cylinder pad and cylinder cap, and crankcase is provided with crankcase cylinders hole water jacket, and cylinder cap is provided with the cylinder cap water jacket; It is characterized in that: be vertically arranged with cooling water channel between each cylinder hole of crankcase, cooling water channel one end is communicated with crankcase cylinders hole water jacket, and the other end is communicated with the cylinder cap water jacket by cylinder pad water hole.

Described cooling water channel is formed by the water channel that is communicated with crankcase cylinders hole water jacket with the water channel that is communicated with the cylinder cap water jacket by cylinder pad water hole, and two water channels and crankcase end face all are angle and arrange that two water channels are interconnected in the bottom.Each water channel all comprises two sections Φ A water channels and two sections Φ B water channels again.

The component that motor need cool off are mainly by crankcase, and cylinder pad and cylinder cap are formed, and the cylinder pad mainly plays sealing gas, cooling water and regulates the effect that current distribute.Form a cooling water passage that cools off high heat load zone between the crankcase cylinders hole by cooling water flow through Φ A, Φ B cooling water channel, cylinder pad water hole, cylinder cap water jacket between crankcase cylinder hole water channel, the crankcase cylinders hole, realize reducing the purpose of crankcase, cylinder cap high heat load regional temperature.

Above structure can effectively reduce between the crankcase cylinders hole and cylinder cap bridge of the nose district temperature, reduces cylinder sleeve temperature approach all around, improves the durable and reliability of cylinder sleeve thereby reduce the cylinder sleeve hot shaping, reduces engine motor oil consumption and toxic emission.

Description of drawings

The engine crankcase cooling schematic representation that Fig. 1 is traditional;

Fig. 2 is the flow of cooling water direction schematic representation of traditional engine crankcase;

Cooling water channel structure schematic representation between Fig. 3 engine crankcase of the present utility model two cylinder holes

Embodiment

Referring to Fig. 3, the utility model comprises crankcase 103, cylinder pad 102 and cylinder cap 101, crankcase 103 is provided with crankcase cylinders hole water jacket 107, cylinder cap is provided with cylinder cap water jacket 113. the utility model and further is vertically arranged with cooling water channel between each cylinder hole of crankcase 103, cooling water channel one end is communicated with crankcase cylinders hole water jacket 107, and the other end is communicated with cylinder cap water jacket 113. by cylinder pad water hole

Specific practice is, at first between 103 two cylinder holes of crankcase drilling one first epimere Φ A water channel 108, the first epimere Φ A water channel 108 is communicated with crankcase cylinders hole water jacket 107, Φ A diameter is Φ 3～Φ 6mm, the first epimere Φ A water channel 108 is angle C1 with the crankcase end face, C1 is 25 °～45 °, and length L 1 is 9～30mm; The drilling first hypomere Φ B water channel 109 again in the first epimere Φ A water channel, 108 bottoms, its length L 2 is 10～25mm, Φ B diameter is Φ 2～Φ 6mm.Simultaneously, be angle C2 from the crankcase end face drilling second epimere Φ A water channel 111, the second epimere Φ A water channels 111 with the crankcase end face, C2 is 20 °～45 °, and length L 3 is 10～45mm; The drilling second hypomere Φ B water channel 110 again in the second epimere Φ A water channel, 111 bottoms, its length L 4 is 10-30mm, and diameter is Φ 2～Φ 6mm, and the first hypomere Φ B water channel 109 and the second hypomere Φ B water channel 110 are interconnected in the lower end.

Communicate with cylinder pad water hole 112 at the second epimere Φ A water channel 111, cylinder pad water hole 112 communicates with cylinder cap water jacket 113, and whole coolant flow direction is shown in the direction of arrow among the figure.

Claims

1. cooling water channel between an engine crankcase cylinders comprises crankcase (103), cylinder pad (102) and cylinder cap (101), and crankcase (103) is provided with crankcase cylinders hole water jacket (107), and cylinder cap is provided with cylinder cap water jacket (113); It is characterized in that: be vertically arranged with cooling water channel between each cylinder hole of crankcase, cooling water channel one end is communicated with crankcase cylinders hole water jacket (107), and the other end is communicated with cylinder cap water jacket (113) by cylinder pad water hole (112).

2. cooling water channel between engine crankcase cylinders according to claim 1, it is characterized in that: described cooling water channel is formed by the water channel that is communicated with crankcase cylinders hole water jacket (107) with the water channel that is communicated with cylinder cap water jacket (113) by cylinder pad water hole (112), two water channels and crankcase end face all are angle and arrange that two water channels are interconnected in the bottom.

3. cooling water channel between engine crankcase cylinders according to claim 2, it is characterized in that: described each water channel all comprises two sections, the first epimere Φ A water channel (108) is communicated with crankcase cylinders hole water jacket (107), diameter is Φ 3～Φ 6mm, be angle C1 with the crankcase end face, C1 is 25 °～45 °, and length L 1 is 9～30mm; The first hypomere Φ B water channel (109) is connected first epimere Φ A water channel (108) lower end, and its length L 2 is 10～25mm, and diameter is Φ 2～Φ 6mm; The second epimere Φ A water channel (111) is communicated with cylinder cap water jacket (113) from the drilling of crankcase end face by cylinder pad water hole (112), and diameter is Φ 3～Φ 6mm, is angle C2 with the crankcase end face, and C2 is 20 °～45 °, and length L 3 is 10～45mm; The second hypomere Φ B water channel (110) is connected second epimere Φ A water channel (111) lower end, and its length L 4 is 10-30mm, and diameter is Φ 2～Φ 6mm; The first hypomere Φ B water channel (109) and the second hypomere Φ B water channel (110) are interconnected in the lower end.