JPH02266184A - Valve gear - Google Patents
Valve gearInfo
- Publication number
- JPH02266184A JPH02266184A JP8397289A JP8397289A JPH02266184A JP H02266184 A JPH02266184 A JP H02266184A JP 8397289 A JP8397289 A JP 8397289A JP 8397289 A JP8397289 A JP 8397289A JP H02266184 A JPH02266184 A JP H02266184A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- silencing
- valve body
- fluid passage
- valve gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000012530 fluid Substances 0.000 claims abstract description 11
- 239000006096 absorbing agent Substances 0.000 claims description 9
- 230000030279 gene silencing Effects 0.000 abstract description 5
- 239000011491 glass wool Substances 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 210000002268 wool Anatomy 0.000 abstract description 2
- 239000000919 ceramic Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 210000002445 nipple Anatomy 0.000 description 2
- 230000003584 silencer Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Details Of Valves (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、ハウジング内に設けられた弁体が全開時に
は弁座部に当たって流体通路を遮断し、全開時には弁体
が弁座部から離間して流体通路を開口する弁装置に関す
るものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention is characterized in that the valve body provided in the housing hits the valve seat part when fully opened and blocks the fluid passage, and when the valve body is fully opened, the valve body separates from the valve seat part. This invention relates to a valve device that opens a fluid passage.
第５図は弁装置の一例として内燃機関用過給圧制御弁装
置を示す断面図であり、図において、１は円筒状のハウ
ジング、２はハウジング１に突設され過給機（図示せず
）の上流側に連通した流体通路であるバイパス配管、３
はハウジング１の上部に取り付けられたケース、４はケ
ース３に取り付けられスロットル弁（図示せず）の下流
側と連通したニップルである。FIG. 5 is a sectional view showing a supercharging pressure control valve device for an internal combustion engine as an example of a valve device. ) bypass piping, which is a fluid passage communicating with the upstream side of 3
4 is a case attached to the upper part of the housing 1, and 4 is a nipple that is attached to the case 3 and communicates with the downstream side of a throttle valve (not shown).
５は第１のホルダ６と第２のホルダ７とにより挟まれ周
縁部がハウジング１とケース３とにより挟持されたダイ
ヤフラム、８は一端が第１のホルダ６に当接されてハウ
ジング１内に設けられたスプリング、９は一端が第１お
よび第２のホルダ６７に固着され他端が円板状の弁体１
０に固着されたロッド、１１はボス１４の内部に設けら
れロッド９を案内するブツシュである。5 is a diaphragm which is sandwiched between the first holder 6 and the second holder 7 and whose peripheral edge is held between the housing 1 and the case 3; The provided spring 9 has one end fixed to the first and second holders 67 and the other end fixed to the disc-shaped valve body 1.
The rod 11 fixed at 0 is a bushing provided inside the boss 14 and guiding the rod 9.
次に、上記のように構成された従来の過給圧制御弁装置
の動作について説明する。自動車の中および高負荷運転
状態においては、スロットル弁は全開状態に近く、また
過給機の過給効果によってスロットル弁の上流側および
下流側はともに高正圧状態にあり、ニップル４に通じた
圧力室１２の内部には正圧が印加され、ダイアフラム５
にはスプリング８により弁体１０の閉弁方向の付勢力が
働き、弁体１０が弁座部１３に当たり弁体１２は完全閉
弁状態にある。Next, the operation of the conventional boost pressure control valve device configured as described above will be explained. In a car and under high-load operating conditions, the throttle valve is close to a fully open state, and due to the supercharging effect of the supercharger, both the upstream and downstream sides of the throttle valve are in a high positive pressure state, leading to nipple 4. Positive pressure is applied inside the pressure chamber 12, and the diaphragm 5
The spring 8 exerts a biasing force on the valve body 10 in the valve closing direction, so that the valve body 10 hits the valve seat portion 13 and the valve body 12 is in a completely closed state.
上記中および高負荷運転状態からスロットル弁が急閉弁
する減速運転に変化すると、スロットル弁の下流側の圧
力は高負圧に変化して圧力室１２は高負圧となり、弁体
１０はスプリング８の弾発力に逆らって上動し、弁体１
０は開弁じ、スロットル弁の上流側の異常昇圧は防止さ
れる。When the above medium and high load operating conditions change to deceleration operation in which the throttle valve suddenly closes, the pressure on the downstream side of the throttle valve changes to high negative pressure, the pressure chamber 12 becomes high negative pressure, and the valve body 10 is pressed against the spring. The valve body 1 moves upward against the elastic force of 8.
0 means the valve is open, and abnormal pressure increase on the upstream side of the throttle valve is prevented.
上記のように構成された従来の過給圧制御弁装置におい
ては、弁体１０と弁座部１３との間の微小開度のときに
圧力空気による気流音が発生するという問題点があった
。In the conventional supercharging pressure control valve device configured as described above, there was a problem in that air flow noise due to pressurized air was generated when the opening degree between the valve body 10 and the valve seat portion 13 was small. .
この発明は、かかる問題点を解消するためになされたも
ので、消音性能に優れた弁装置を得ることを目的とする
。The present invention was made to solve this problem, and an object of the present invention is to obtain a valve device with excellent silencing performance.
この発明に係る弁装置は、ハウジング内および流体通路
内の少なくともいずれか一方に吸音体を設けたものであ
る。The valve device according to the present invention includes a sound absorber provided in at least one of the housing and the fluid passage.
この発明においては、弁体と弁座部との間に微小開度が
生じたときに気流音が発生するが、この気流音は吸音体
により吸収される。In this invention, airflow noise is generated when a minute opening occurs between the valve body and the valve seat, but this airflow noise is absorbed by the sound absorber.
以下、この発明の実施例を図について説明する第１図は
この発明の第１の実施例を示す断面図で、第５図と同一
または相当部分は同一符号を付し、その説明は省略する
。Hereinafter, embodiments of the present invention will be explained with reference to the drawings. Figure 1 is a sectional view showing a first embodiment of the present invention, and the same or corresponding parts as in Figure 5 are given the same reference numerals, and their explanation will be omitted. .
第１図において、２０はバイパス配管２内に設けられた
グラスウール製の吸音体であり、弁体１０と弁座部１３
との間に微小開度が生したときに気流音が発生するが、
この気流音は吸音体２０により吸収される。In FIG. 1, reference numeral 20 denotes a sound absorbing body made of glass wool provided in the bypass pipe 2, and includes a valve body 10 and a valve seat portion 13.
Airflow noise occurs when a small opening occurs between the
This airflow sound is absorbed by the sound absorber 20.
第２図はこの発明の第２の実施例で、ボス１４の下面に
吸音体２０が設けられている。FIG. 2 shows a second embodiment of the invention, in which a sound absorber 20 is provided on the lower surface of the boss 14. As shown in FIG.
第３図はこの発明の第３の実施例で、弁体１ｏの上面に
吸音体２０が設けられている。FIG. 3 shows a third embodiment of the invention, in which a sound absorber 20 is provided on the upper surface of the valve body 1o.
第４図はこの発明の第４の実施例で、バイパス配管２の
内壁に吸音体２０が設けられている。FIG. 4 shows a fourth embodiment of the present invention, in which a sound absorber 20 is provided on the inner wall of the bypass pipe 2. As shown in FIG.
なお、上記実施例では弁装置として過給圧制御弁装置に
ついて説明したが、この発明は、弁体が全開時には弁座
部に当たって流体通路を遮断し、全開時には弁体が弁座
部から離間して流体通路を開口する弁装置に適用するこ
とができるのは勿論である。また、上記実施例ではいず
れもグラスウールからなる消音体について説明したが、
例えばスチールウール製の消音体、セラミック多孔体製
の消音体であってもよい。In the above embodiment, a supercharging pressure control valve device was explained as the valve device, but in this invention, when the valve body is fully open, it hits the valve seat and blocks the fluid passage, and when it is fully open, the valve body is separated from the valve seat. Of course, the present invention can also be applied to a valve device that opens a fluid passage. In addition, in the above embodiments, the sound deadening body made of glass wool was explained.
For example, a silencer made of steel wool or a silencer made of porous ceramic material may be used.
以上説明したように、この発明の弁装置は、ハウジング
内および流体通路内の少なくともいずれか一方に吸音体
を設けるという簡単な構成により、弁体と弁座部との間
に微小開度が生じたときに発生する気流音は吸音体によ
り吸収される結果、優れた消音性能を有するという効果
がある。As explained above, the valve device of the present invention has a simple configuration in which a sound absorber is provided in at least one of the housing and the fluid passage, so that a minute opening is created between the valve body and the valve seat. The sound absorbing material absorbs the air flow noise generated when the airflow occurs, resulting in excellent sound damping performance.
第１図はこの発明の第１の実施例を示す断面図、第２図
はこの発明の第２の実施例を示す断面図、第３図はこの
発明の第３の実施例を示す断面図、第４図はこの発明の
第４の実施例を示す断面図、第５図は従来の過給圧制御
弁装置の一例を示す断面図である。
図において、く１）はハウジング、（２）はバイパス配
管、（１０）は弁体、（１３）は弁座部、（２０）は吸
音体である。
なお、各図中、同一符号は同一または相当部分を示すも
のである。Fig. 1 is a sectional view showing a first embodiment of the invention, Fig. 2 is a sectional view showing a second embodiment of the invention, and Fig. 3 is a sectional view showing a third embodiment of the invention. 4 is a sectional view showing a fourth embodiment of the present invention, and FIG. 5 is a sectional view showing an example of a conventional supercharging pressure control valve device. In the figure, 1) is a housing, (2) is a bypass pipe, (10) is a valve body, (13) is a valve seat, and (20) is a sound absorber. In each figure, the same reference numerals indicate the same or corresponding parts.
Claims (1)
たって流体通路を遮断し、全開時には前記弁体が弁座部
から離間して前記流体通路を開口する弁装置において、
前記ハウジング内および前記流体通路内の少なくともい
ずれか一方に吸音体を設けたことを特徴とする弁装置。A valve device in which a valve body provided in a housing hits a valve seat portion to block a fluid passage when fully opened, and the valve body separates from the valve seat portion to open the fluid passage when fully opened,
A valve device characterized in that a sound absorber is provided in at least one of the housing and the fluid passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8397289A JPH02266184A (en) | 1989-04-04 | 1989-04-04 | Valve gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8397289A JPH02266184A (en) | 1989-04-04 | 1989-04-04 | Valve gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02266184A true JPH02266184A (en) | 1990-10-30 |
Family
ID=13817455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8397289A Pending JPH02266184A (en) | 1989-04-04 | 1989-04-04 | Valve gear |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02266184A (en) |
-
1989
- 1989-04-04 JP JP8397289A patent/JPH02266184A/en active Pending
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