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Cylinder structure of engine

A cylinder block and engine technology, which is applied in the direction of engine lubrication, engine components, machine/engine, etc., can solve the problems of engine width increase, achieve the effects of inhibiting wear, reducing contact pressure, and increasing the radius of curvature

Inactive Publication Date: 2006-10-11
MITSUBISHI MOTORS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] However, according to the technology of Patent Document 1, when equipped with Figure 4 In the case of the timing chain device shown, if the radius of curvature of the guide surface is increased to avoid contact between the timing chain and the guide surface of the timing chain guide device, the There is an oil drain hole, and the position of the oil drain hole determines the position of the main oil passage in the transverse direction of the engine, so even if the main oil passage is changed to the eccentric structure as mentioned above, the increase of the engine width is inevitable

Method used

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  • Cylinder structure of engine
  • Cylinder structure of engine
  • Cylinder structure of engine

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Embodiment Construction

[0030] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the descriptions of the dimensions, materials, shapes, and relative positions of the structural components involved in this embodiment, unless otherwise specified, are not intended to limit the present invention, but are merely illustrative.

[0031] figure 1 is a cross-sectional view of a main oil passage in an engine cylinder block according to an embodiment of the present invention ( figure 2 sectional view of line A-A), figure 2 It is an end view viewed from the direction of the crankshaft axis of the cylinder block. image 3 This is a front view from the direction of the crankshaft axis of the timing chain device.

[0032] image 3 The timing chain device according to the preferred embodiment of the present invention is given, in the figure, 5 represents the timing chain cover, which is installed in the image 3 The f...

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Abstract

The invention discloses a cylinder block structure of an engine. In an engine with a timing chain device installed at the front end of the cylinder block, the curvature radius of the guide surface of the timing chain guide device is enlarged to reduce the distance between the timing chain and the guide surface of the timing chain guide device. Contact pressure, thereby suppressing the wear of the timing chain guide caused by the contact, without increasing the width of the engine. At the front of the engine cylinder block, a timing chain device for transmitting crankshaft power is installed, and on the outside of the guide device that guides the chain of the timing chain device perpendicular to the axis of the crankshaft, it is connected to the shaft The center line is parallel to the main oil passage formed in the cylinder body, wherein the main oil passage is in a stepped shape and is guided by the timing chain from the outside of the timing chain guide device perpendicular to the direction of the axis. The outer oil passage provided at one end of the cylinder block on one side of the device is connected with the outer oil passage and is closer to the inner side than the outer oil passage, and is formed from the other end of the cylinder block.

Description

technical field [0001] The invention discloses an engine cylinder block structure for a vehicle engine and the like. The front end of the engine cylinder block is provided with a power transmission member for transmitting crankshaft power, and is arranged on the power transmission member perpendicular to the axis of the crankshaft. Outer main oil passage. Background technique [0002] In a vehicle engine, a timing chain device is generally installed in a timing chain cover located on a front end face of a cylinder block. [0003] Figure 4 This is a front view of the main parts of the timing chain device viewed from the front end of the vehicle engine along the axis of the crankshaft. exist Figure 4 , 5 is the timing chain cover, installed in Figure 4 The front end surface of the cylinder block 10 partially shown in the figure. 01 is a main oil passage (oil passage) provided through the cylinder block 10 in the direction of the crankshaft axis. 20 is a timing chain devi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01M1/06F01L1/02F01M11/02F02F1/00F02F7/00F16H7/18
CPCF01L1/022F01M11/02F16H7/18
Inventor 吉原昭野口泰彦梅谷龙彦田丸敦士角谷浩古川直树
Owner MITSUBISHI MOTORS CORP
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