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Electromagnetic valve device for engine

A transmission device and engine technology, applied in the direction of engine components, machines/engines, valve devices, etc., can solve problems such as narrow space constraints, and achieve the effects of compact structure, reliable adsorption, and change of lift

Inactive Publication Date: 2009-08-19
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the electromagnetic valve actuator of the above-mentioned conventional engine needs to use an actuator to move the plate base supporting one electromagnet, two permanent magnets, and two disks (armatures), so there is the following problem: the electromagnetic valve actuator The overall size is large, so it is very restricted to arrange it in the small space inside the cylinder head of the engine

Method used

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  • Electromagnetic valve device for engine
  • Electromagnetic valve device for engine
  • Electromagnetic valve device for engine

Examples

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no. 1 example

[0068] Figure 1 to Figure 6 The first embodiment of the present invention is shown.

[0069] Such as figure 1 As shown, the cylinder head 12 of the engine is combined on the top surface of the cylinder block 11 , and the cylinder head cover 13 is combined on the top surface of the cylinder head 12 . An intake port 14 is formed on the cylinder head 12 , and an intake valve 17 opens and closes a valve hole 16 opening from the intake port 14 to the combustion chamber 15 . The upper valve guide 19 is guided to slide freely.

[0070] Such as Figure 1 to Figure 4 As shown, the electromagnetic valve gear 20 that drives a pair of intake valves 17 to open and close with the same timing (timing) and the same lift includes: a pair of first electromagnets 21; a pair of second electromagnets 22; a pair of armatures 23; and a pair of loading rods 24.

[0071] The first electromagnet 21 includes: an iron core (core) 25 formed by laminating a plurality of steel plates; a pair of windin...

Embodiment 2

[0092] Figure 7 ~ Figure 13 The second embodiment of the present invention is shown.

[0093] Such as Figure 7 As shown, the cylinder head 12 of the engine is combined on the top surface of the cylinder block 11 , and the cylinder head cover 13 is combined on the top surface of the cylinder head 12 . An intake port 14 is formed on the cylinder head 12 , and an intake valve 17 opens and closes a valve hole 16 opening from the intake port 14 to the combustion chamber 15 . A valve stem 18 of the intake valve 17 is provided on the cylinder head 12 . The upper valve guide 19 is guided to slide freely.

[0094] Such as Figure 7 ~ Figure 11 As shown, the electromagnetic valve gear 20 that drives a pair of intake valves 17 to open and close with the same timing and the same lift includes: a pair of first electromagnets 21; a pair of second electromagnets 22; and a pair of electromagnets. Pivot 23.

[0095] The first electromagnet 21 includes: an iron core 25 formed by laminati...

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Abstract

In an engine electromagnetic valve operating device (20), an intake valve (17) is opened and closed by means of a first electromagnet (21), which is fixed to a cylinder head, and a second electromagnet (22), which is pivotably supported on the cylinder head by a fixed shaft (38) so as to be capable of swinging, attracting a first attraction face (23b) and a second attraction face (23c) respectively of an armature (23) having one end pivotably supported on the cylinder head by the fixed shaft (38) so that it can swing and having the other end abutting against a stem (18) of the intake valve (17). In this arrangement, by changing the angle between the first and second electromagnets (21, 22) by swinging the second electromagnet (22), the amount of lift of the intake valve (17) can be changed freely. Furthermore, since only at least one of the first and second electromagnets (21, 22) needs to be made to swing and, moreover, it is unnecessary to move the position of the armature (23), it is possible to form the electromagnetic valve operating device (20) compactly.

Description

technical field [0001] The invention relates to an electromagnetic valve transmission device of an engine which drives a valve to open and close by using an armature which is alternately attracted by a first electromagnet and a second electromagnet to swing. Background technique [0002] An electromagnetic valve actuator for an engine is known by the following patent document 1: a disk base can move in a direction perpendicular to the direction of opening and closing of a driving valve provided on a cylinder head of the engine. The upper support includes: the upper plate (armature) and the lower plate (armature) whose front end is connected to the driving valve and whose base end is pivotally supported; the electromagnet arranged inside the two plates; and a pair of permanent magnets arranged outside the two plates. Magnets, by controlling the energization of the electromagnet, the two discs are alternately attracted to the electromagnet and the permanent magnet to swing bac...

Claims

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Application Information

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IPC IPC(8): F01L9/04F01L3/10
CPCF01L2105/00F01L2009/0409F01L2305/00F01L2009/2109
Inventor 藤井德明藤本智也酒井久夫吉田惠子
Owner HONDA MOTOR CO LTD