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actuator

A technology of actuators and diaphragms, applied in the direction of fluid pressure actuation devices, etc., can solve problems such as strength reduction, and achieve the effect of preventing strength reduction and preventing fracture

Active Publication Date: 2018-11-16
TAIHO INDUSTRIES CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the actuator described in Patent Document 1 is formed such that a part of the plate protrudes from the negative pressure chamber to the atmospheric pressure chamber through the through hole formed in the diaphragm.
Therefore, in the actuator described in Patent Document 1, the plate is in contact with the atmosphere, and there is a possibility that the strength of the plate may decrease due to hydrolysis.

Method used

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Embodiment Construction

[0025] in the following Figure 2 to Figure 4 , define the up-down direction and left-right direction according to the arrows shown in the figure.

[0026] First, use figure 1 , the outline of the operation of the turbocharger 5 using the actuator 10 according to one embodiment of the present invention will be described.

[0027] The turbocharger 5 feeds compressed air into the cylinder block 2 of the engine. Air is supplied to the cylinder 2 through the intake passage 1 . The air sequentially passes through an air filter 4 , a turbocharger 5 , an intercooler 6 , and a throttle valve 7 disposed in the intake passage 1 and is supplied to the cylinder block 2 . At this time, since the air is compressed by the compressor 5 a of the turbocharger 5 , more air can be sent into the cylinder 2 .

[0028] High-temperature air (exhaust gas) combusted in the cylinder 2 is discharged through the exhaust passage 3 . At this time, the exhaust gas rotates the turbine 5 b of the turbocha...

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Abstract

There is provided an actuator that can prevent a decrease in strength of a plate due to hydrolysis. The actuator is provided with a diaphragm which divides an inside of a casing into a negative pressure chamber and an atmospheric pressure chamber, a resin plate which is provided inside the negative pressure chamber to contact with the diaphragm, and an operating shaft having one side connected to the plate and the diaphragm and the other side extended outside the casing through the atmospheric pressure chamber, the operating shaft capable of being displaced in the axial direction according to the deformation of the diaphragm. The operating shaft penetrates through the diaphragm to connect to the plate inside the negative pressure chamber so that the plate is blocked from the atmospheric pressure chamber.

Description

technical field [0001] The present invention relates to the technology of an actuator having an operating shaft displaceable in an axial direction according to deformation of a diaphragm. Background technique [0002] Conventionally, there is known a technology of an actuator having: a diaphragm that divides the inside of a case into a negative pressure chamber and an atmospheric pressure chamber; a plate that is placed in the negative pressure chamber and is in contact with the diaphragm; and The working shaft is capable of being displaced in the axial direction according to the deformation of the diaphragm. For example, it is shown in patent document 1. [0003] The actuator described in Patent Document 1 has: a diaphragm that divides the interior of the housing (first housing and second housing) into a negative pressure chamber and an atmospheric pressure chamber; and a plate (diaphragm receiving plate) provided on the a negative pressure chamber and in contact with the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B15/10
CPCF15B15/10
Inventor 松井邦宜岩田昭寿米泽幸一
Owner TAIHO INDUSTRIES CO LTD