Water jacket structure for cylinder head

A cylinder head and water jacket technology, applied in the direction of cylinder head, cylinder, engine cooling, etc., can solve the problems of water jacket coolant retention and coolant flow increase, and achieve the effect of efficient cooling

Active Publication Date: 2014-05-07
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the communication channel is provided, stagnation of the coolant is likely to occur inside the water jacket, and there is a problem that in order to improve the cooling efficiency or eliminate the lack of cooling, measures must be taken to increase the flow rate of the coolant, etc.

Method used

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  • Water jacket structure for cylinder head
  • Water jacket structure for cylinder head
  • Water jacket structure for cylinder head

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Embodiment Construction

[0090] For the implementation of the present invention, refer to Figure 1 to Figure 12It demonstrates in detail. In the description, the same reference numerals are assigned to the same members, and overlapping descriptions are omitted. In addition, when describing a direction, as shown in each drawing, it demonstrates based on the state which installed the internal combustion engine E in a vehicle, front, rear, left, right, up and down.

[0091] figure 1 It is a cross-sectional view of an internal combustion engine having a water jacket structure of a cylinder head according to this embodiment.

[0092] Such as figure 1 As shown, the internal combustion engine E to which the present invention is applied has an internal combustion engine main body, and the internal combustion engine main body has: a cylinder block 1, which is, for example, four cylinders 1a (in figure 1 Only one of them is shown in the figure) are arranged in line and arranged integrally; the cylinder hea...

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Abstract

The invention provides a water jacket structure for a cylinder head, and can realize improvement of cooling efficiency of a collector while suppressing increase of the amount of cooling liquid. The water jacket structure for the cylinder head is characterized by having a plurality of upper combustion chamber portions (21), a plurality of intake openings (22) and a plurality of exhaust openings (23), a collector (24) collecting the plurality of exhaust openings inside the cylinder head, and a outlet water jacket (70) cooling the collector (24). The outlet water jacket (70) has an upper outlet water jacket (80) and a lower outlet water jacket (90) which are respectively arranged at upper and lower sides in a cylinder axis (Lc) direction relative to the collector, and form mutually independent flow channels within the cylinder head (2).

Description

technical field [0001] The present invention relates to a water jacket structure of a cylinder head, and in particular to a water jacket structure of a cylinder head integrally formed with an exhaust collection part for collecting a plurality of exhaust ports. Background technique [0002] In the past, based on improving fuel consumption and reducing CO 2 In order to meet the requirements, it is desired to realize the miniaturization of internal combustion engines such as engines. However, in order to eliminate the lack of torque caused by miniaturization, such internal combustion engines are often equipped with superchargers. On the other hand, in order to achieve downsizing / lightening of the internal combustion engine, an internal combustion engine is developed in which an exhaust gas collecting portion for exhaust gas extending from a plurality of combustion chambers is integrally formed in the cylinder head. Multiple exhaust ports converge. The exhaust gas collection p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02F1/36F02F1/42
CPCF01P2003/024F02F1/243F01P2003/028F02F1/40
Inventor 藤井健史井川诚崇松持祐司
Owner HONDA MOTOR CO LTD
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