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Variable Valve Assembly For Internal Combustion Engine

A technology of internal combustion engine and valve, applied in valve device, electrical control, mechanical equipment, etc.

Active Publication Date: 2015-06-17
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, when lubricating oil remains in the variable valve gear, there is a misalignment ratio when the output rotor and the input rotor are fixed to each other, and a misalignment ratio when the output rotor and the input rotor are not fixed to each other. possibility that there is no substantial difference between
Therefore, when the output rotating body and the input rotating body are not fixed to each other, there is a possibility that it is determined that the two rotating bodies are fixed.

Method used

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  • Variable Valve Assembly For Internal Combustion Engine
  • Variable Valve Assembly For Internal Combustion Engine
  • Variable Valve Assembly For Internal Combustion Engine

Examples

Experimental program
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Embodiment Construction

[0043] refer to Figure 1 to Figure 10 One embodiment of the present invention will be described. In this embodiment, an example in which the variable valve device of the present invention is embodied as a V-type six-cylinder internal combustion engine is shown.

[0044] The internal combustion engine 1 includes: an internal combustion engine main body 10 including a cylinder block 11, a cylinder head 12, and an oil pan 18; a variable valve device 20 including various elements of a valve system provided on the cylinder head 12; a lubricating device 50 ; and a control device 60 for collectively controlling the above-mentioned devices. A reciprocating piston 14 is provided in the cylinder 13 . A fuel injection valve 16 is provided on the cylinder head 12 . The fuel injection valve 16 injects fuel to the intake port.

[0045] The variable valve device 20 includes an intake valve 21 and an exhaust valve 28 that open and close the combustion chamber 15; an intake camshaft (outp...

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Abstract

Provided is a variable valve assembly for internal combustion engines which is capable of accurately determining whether an input rotational component and an output rotational component are fixed to each other. The variable valve assembly includes an intake camshaft for driving an intake valve and a crankshaft for driving the camshaft. The variable valve assembly has a function for changing the relative rotational phase of the intake camshaft with respect to the crankshaft and a function for fixing the intake camshaft to the crankshaft. The variable valve assembly determines whether the intake camshaft is fixed to the crankshaft, on the basis of a total amount of phase variation HCC or the amount of variation in the relative rotational phase of the intake camshaft with respect to the crankshaft.

Description

technical field [0001] The present invention relates to a variable valve device of an internal combustion engine, the variable valve device of an internal combustion engine includes an output rotary body for driving a valve of the internal combustion engine, and an input rotary body for driving the output rotary body, and the variable valve device for an internal combustion engine has a function of changing the relative position of the output rotary body The function of the relative rotation phase which is the rotation phase of the input rotor, and the function of fixing the input rotor and the output rotor to each other when the relative rotation phase is a specific phase. Background technique [0002] As the variable valve device described above, for example, a device described in Patent Document 1 is known. [0003] This variable valve device is provided with a sensor that determines whether the input rotary body and the output rotary body are fixed to each other. Then, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01L1/34
CPCF01L1/2405F01L1/3442F01L2001/34469F01L2001/34476F01L2800/01F01L2800/03F01L2820/041F02B75/22F02D41/062F02D41/30F01L2305/00
Inventor 横山友沼仓雅树
Owner TOYOTA JIDOSHA KK