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Gas distribution timing control device and internal combustion engine therewith

A timing control and gas distribution technology, applied in valve devices, mechanical equipment, engine components, etc., can solve problems such as difficult oil circuit processing, and achieve the effect of simple oil circuit

Active Publication Date: 2015-01-14
NISSAN MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it is possible to integrally form the cover member and the chain cover, it may become difficult to process each oil passage

Method used

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  • Gas distribution timing control device and internal combustion engine therewith
  • Gas distribution timing control device and internal combustion engine therewith
  • Gas distribution timing control device and internal combustion engine therewith

Examples

Experimental program
Comparison scheme
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Embodiment 2

[0078] Next, an internal combustion engine 301 having a valve timing control device 320 as a second embodiment of the present invention will be described.

[0079] The difference in structure between the internal combustion engine 301 having the valve timing control device 320 of the second embodiment and the internal combustion engine 1 having the valve timing control device 20 of the first embodiment is that the chain cover 4 is changed to a chain Except for the cover 304 and changing the intermediate oil passage forming member 50 to an intermediate oil passage forming member 350, it has the same structure as the internal combustion engine 1 of the valve timing control device 20 of the first embodiment. Therefore, in the internal combustion engine 301 having the valve timing control device 320 of the second embodiment, the parts different from the valve timing control device 20 of the first embodiment will be described. In addition, for the same structure as the valve timing...

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PUM

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Abstract

A valve timing control apparatus for changing a relative rotational phase of a camshaft (8 or 10) with respect to a crankshaft (2) using a hydraulic pressure of a hydraulic oil supplied from an oil pump (16) includes a chain cover (4, 204, 304), a phase changing mechanism (30), a selector valve (18), and an intermediate oil passage. The chain cover (4, 204, 304) defines a valve chamber (12, 212, 312) having an inlet port (15b, 215b, 315b) for the hydraulic oil, an advancement port (15a, 215a, 315a), and a retardation port (15c, 215c, 315c). The phase changing mechanism (30) is coupled to an end portion of the camshaft (8 or 10) with the phase changing mechanism (30) being at least partially covered by the chain cover (4, 204, 304). The phase changing mechanism (30) has a plurality of hydraulic pressure chambers including an advancement chamber (38A) and a retardation chamber (38B). The selector valve (18) is housed in the valve chamber (12, 212, 312) of the chain cover (4, 204, 304), and configured and arranged to selectively open the advancement port (15a, 215a, 315a) or the retardation port (15c, 215c, 315c). The intermediate oil passage forming member (50, 150, 250, 350) is for conveying the hydraulic oil in the valve chamber (12, 212, 312) of the chain cover (4, 204, 304) from the advancement port (15a, 215a, 315a) of the valve chamber (12, 212, 312) to the advancement chamber (38A) of the phase changing mechanism (30), and from the retardation port (15c, 215c, 315c) of the valve chamber (12, 212, 312) to the retardation chamber (38B) of the phase changing mechanism (30).

Description

technical field [0001] The present invention relates to a valve timing control device and an internal combustion engine having the valve timing control device. Background technique [0002] In the past, as this kind of valve timing control device, the following device has been proposed. The device includes: a variable valve timing control mechanism, which is provided at the end of the camshaft so as to be concentric with the camshaft; a reversing valve that performs operations of supplying operating oil to the variable valve timing control mechanism and discharging operating oil from the variable valve timing control mechanism; a cover member that covers the variable valve timing control The valve timing control device supplies operating oil from the oil pump to the variable valve timing control mechanism through the cover member, and changes the rotation phase of the camshaft relative to the rotation of the crankshaft, thereby changing the intake valve, exhaust valve, etc. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01L1/348F01L3/24F01L9/02F01L9/10
CPCF01L1/34F01L1/053F01L2001/34426F01L1/344
Inventor 太田贵弘堀部武广
Owner NISSAN MOTOR CO LTD