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Electromagnetically driven valve

A technology of electromagnetic drive and electromagnetic force, which is applied to electromagnets, non-mechanically actuated valves, and electromagnets with armatures, etc. It can solve the problems of short excitation switching time and impossible operation of electromagnetic drive valves.

Inactive Publication Date: 2007-02-14
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But short excitation switching times with single coil connection
As a result, when the voltage is low and the rise of the current is slow, the electromagnetically driven valve cannot be operated

Method used

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  • Electromagnetically driven valve
  • Electromagnetically driven valve
  • Electromagnetically driven valve

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0017] figure 1 is a sectional view of the electromagnetically driven valve according to the first embodiment of the present invention. Referring to this figure, the electromagnetically driven valve 1 has a main body 51, a valve closing electromagnet 60 and a valve opening electromagnet 160 connected to the main body 51, a disc 30 disposed between the valve closing electromagnet 60 and the valve opening electromagnet 160 , the valve stem 12 driven by the disc 30 .

[0018] The valve body 51 formed in the shape of a transverse letter "U" is a base to which various components are connected. The valve closing electromagnet 60 has a core 61 of magnetic material and a valve closing coil 62 wound on the core 61 . Likewise, the valve opening electromagnet 160 has a core 161 of magnetic material and a valve opening coil 162 wound on the core 161 . Energizing the valve closing coil 62 and the valve opening coil 162 generates a magnetic field that drives the disc 30 .

[0019] The d...

Embodiment 2

[0034] Figure 6 is a sectional view of an electromagnetically driven valve 1 according to a second embodiment of the present invention. Referring to the drawing, the electromagnetically driven valve 1 according to the second embodiment of the present invention differs from the electromagnetically driven valve 1 according to the first embodiment in that it has two discs 30 (an upper disc and a lower disc). ). These discs 30 are connected by rods 1012 . The valve open coil 162 and the valve close coil 62 are wound on an electromagnet 360 . Valve open coil 162 and valve close coil 62 are connected in series.

[0035] The electromagnetically driven valve 1 according to the second embodiment described above also exhibits the same effects as the electromagnetically driven valve 1 according to the first embodiment.

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PUM

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Abstract

An electromagnetically driven valve (1) has a valve stem (12); a valve element (14) which reciprocates in the direction in which the valve stem (12) extends; a disc (30) which extends from a driving end, which is operatively linked with the valve element (14), to a pivoting end (33), and pivots around the pivoting end (33); a valve opening coil (162) and a valve closing coil (62) which oscillate the disc (30); and a electric current supply portion which supplies electric current to the valve opening coil (162) and the valve closing coil (62). The valve opening coil (162) and the valve closing coil (62) are serially connected. The reduced electric current, which greater than 0, runs through the valve opening coil (162) and the valve closing coil (62) when moving the disc (30) from one of the valve opening coil (162) and the valve closing coil (62) to the other.

Description

technical field [0001] The invention relates to an electromagnetically driven valve. More particularly, the present invention relates to a pivot type electromagnetically driven valve used in an internal combustion engine and driven by electromagnetic force and elastic force. Background technique [0002] For example, US Patent No. 6467441 discloses an electromagnetically driven valve. [0003] The valve disclosed in US Patent No. 6467441 is electromagnetically actuated by a pivot having a fulcrum (armature) in a disc. But the excitation switching time with a single coil connection is short. As a result, when the voltage is low and the rise of current is slow, it is impossible for the electromagnetically driven valve to be operated. Contents of the invention [0004] The present invention provides a solenoid actuated valve operable at low voltage. [0005] Accordingly, a first aspect of the present invention relates to an electromagnetically driven valve operable using ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01L9/04F16K31/06F01L9/20
CPCH01F7/14H01F2007/1692F01L2009/0409F16K31/0682F01L9/04H01F7/1844F16K31/0679F01L2009/2109F01L9/20
Inventor 浅野昌彦杉江丰
Owner TOYOTA JIDOSHA KK