JPH0444448U - - Google Patents
Info
- Publication number
- JPH0444448U JPH0444448U JP8732790U JP8732790U JPH0444448U JP H0444448 U JPH0444448 U JP H0444448U JP 8732790 U JP8732790 U JP 8732790U JP 8732790 U JP8732790 U JP 8732790U JP H0444448 U JPH0444448 U JP H0444448U
- Authority
- JP
- Japan
- Prior art keywords
- seal member
- ring
- exhaust
- brake device
- outer periphery
- 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
Landscapes
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Description
第１図は本考案の第１実施例に係るスライド型
の排気ブレーキ装置を示す断面図、第２図は本考
案の第２実施例に係るスライド型の排気ブレーキ
装置の要部を示す断面図、第３図は本考案の第３
実施例に係るバタフライ型の排気ブレーキ装置の
要部を示す断面図、第４図は従来の排気ブレーキ
装置を示す断面図、第５図は第４図におけるＡ部
を拡大して示す断面図である。
１，２１，３１……排気ブレーキ装置、２……
アクチユエータ、３……ピストンロツド、４……
ブレーキ弁、１０……下蓋、１２……シール室、
１２ａ……噴出ガス膨脹室、１３……ベントホー
ル、１６……ラビリンスシール、１７……セグメ
ントリングシール、２０……ガータスプリング、
３２……バタフライバルブ、３３……排気ガス通
路、３４……バルブ本体、３６……弁体、３７…
…軸孔、３９……回転軸、４０……噴出ガス膨脹
室、４１……連通孔。
FIG. 1 is a cross-sectional view showing a slide-type exhaust brake device according to a first embodiment of the present invention, and FIG. 2 is a cross-sectional view showing essential parts of a slide-type exhaust brake device according to a second embodiment of the present invention. , Figure 3 shows the third part of the present invention.
FIG. 4 is a sectional view showing the main parts of a butterfly-type exhaust brake device according to an embodiment, FIG. 4 is a sectional view showing a conventional exhaust brake device, and FIG. 5 is an enlarged sectional view showing part A in FIG. 4. be. 1, 21, 31... Exhaust brake device, 2...
Actuator, 3... Piston rod, 4...
Brake valve, 10... lower cover, 12... seal chamber,
12a... Ejected gas expansion chamber, 13... Vent hole, 16... Labyrinth seal, 17... Segment ring seal, 20... Garter spring,
32... Butterfly valve, 33... Exhaust gas passage, 34... Valve body, 36... Valve body, 37...
...Shaft hole, 39...Rotating shaft, 40...Blowout gas expansion chamber, 41...Communication hole.
Claims (1)
とによつて排気管内の排気ガス通路を開閉するよ
うにした排気ブレーキ装置において、前記ブレー
キ弁を作動させる作動ロツドの外周に内外径の異
なる複数のリング状シール部材を軸方向に沿つて
重ね合せると共に、前記リング状シール部材の下
流側に位置する作動ロツドの外周に円筒状シール
部材を密着状態で嵌合し、前記リング状シール部
材と円筒状シール部材とを少なくとも１組以上組
み合せて直列状に配設することにより前記排気管
との連通路を密封する一方、前記円筒状シール部
材を配設した室を外部と連通するように構成した
ことを特徴とする排気ブレーキ装置。 In an exhaust brake device that opens and closes an exhaust gas passage in an exhaust pipe by operating a brake valve with an actuator, a plurality of ring-shaped seal members having different inner and outer diameters are disposed on the outer periphery of an operating rod that operates the brake valve. are overlapped along the axial direction, and a cylindrical seal member is tightly fitted to the outer periphery of an actuating rod located downstream of the ring-shaped seal member, and the ring-shaped seal member and the cylindrical seal member are At least one or more sets are combined and arranged in series to seal the communication path with the exhaust pipe, while the chamber in which the cylindrical seal member is arranged is configured to communicate with the outside. Exhaust brake device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8732790U JPH0444448U (en) | 1990-08-21 | 1990-08-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8732790U JPH0444448U (en) | 1990-08-21 | 1990-08-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0444448U true JPH0444448U (en) | 1992-04-15 |
Family
ID=31819577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8732790U Pending JPH0444448U (en) | 1990-08-21 | 1990-08-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0444448U (en) |
-
1990
- 1990-08-21 JP JP8732790U patent/JPH0444448U/ja active Pending
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