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Electromagnetically-driven valve

Inactive Publication Date: 2008-12-18
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0070]The thus structured electromagnetically-driven valve produces mostly the same advantageous effects as those in the embodiment of the invention.

Problems solved by technology

In this case, if lubrication between the second end portion and the stem is inadequate, the valve is not driven smoothly.
This may increase the amount of electric power that is consumed by the electromagnetically driven valve or shorten its useful life.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026]Hereafter, an embodiment of the invention will be described with reference to the accompanying drawings. Note that, the same or corresponding portions will be denoted by the same reference numerals in the drawings.

Embodiment of the Invention

[0027]FIG. 1 is a plane view showing a gasoline engine provided with electromagnetically-driven valves according to an embodiment of the invention. As shown in FIG 1, electromagnetically-driven valves 10 are provided in a gasoline engine 60 that is an internal combustion engine. The gasoline engine 60 includes a plurality of cylinders 200. The cylinders 200 are aligned in one direction with predetermined intervals. The gasoline engine 60 is an in-line multi-cylinder engine.

[0028]The type of an internal combustion engine in which the electromagnetically-driven valve 10 is provided is not particularly limited. For example, the electromagnetically-driven valve 10 may be provided in a diesel engine. The internal combustion engine may be a singl...

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PUM

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Abstract

An electromagnetically-driven valve includes: intake valves that are arranged side by side; a disk that pivots using applied electromagnetic force to reciprocate the intake valves in a predetermined direction; and a connection member that connects the intake valves to each other. The connection member is provided with a needle bearing into which the pivot motion of the disk is input. The pivot motion of the disk causes a displacement between the needle bearing and the disk in a direction that intersects with the predetermined direction. An oil passage through which oil is supplied to the needle bearing is formed in the connection member.

Description

INCORPORATION BY REFERENCE[0001]The disclosure of Japanese Patent Application No. 2007-151529 filed on Jun. 7, 2007 including the specification, drawings and abstract is incorporated herein by reference in its entirety.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The invention relates generally to an electromagnetically-driven valve, and more specifically to an electromagnetically-driven valve that collectively opens or closes multiple valves provided in an internal combustion engine.[0004]2. Description of the Related Art[0005]For example, the specification of U.S. Pat. No. 6,467,441 describes art related to an existing electromagnetically-driven valve, more specifically, an electromagnetic actuator that actuates a valve of an internal combustion engine using electromagnetic force and elastic force of a spring in combination. The electromagnetic actuator described in the specification of U.S. Pat. No. 6,467,441 includes a valve that has a stem, and a pivot arm. T...

Claims

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Application Information

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IPC IPC(8): F01L9/04F01L9/14F01L9/20
CPCF01L1/26F01L1/267F01L9/025F01L9/04F01L2105/00F01L2810/02F16K31/0682F01L2305/00F01L2009/2109F01L9/14F01L9/20
Inventor SUGIE, YUTAKAASANO, MASAHIKO
Owner TOYOTA JIDOSHA KK