JPH0263015U - - Google Patents
Info
- Publication number
- JPH0263015U JPH0263015U JP14242088U JP14242088U JPH0263015U JP H0263015 U JPH0263015 U JP H0263015U JP 14242088 U JP14242088 U JP 14242088U JP 14242088 U JP14242088 U JP 14242088U JP H0263015 U JPH0263015 U JP H0263015U
- Authority
- JP
- Japan
- Prior art keywords
- spring
- internal combustion
- combustion engine
- valve
- shape memory
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 4
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Description
第１，２図はこの考案の実施例を示し、第１図
はクランクケースベンチレーシヨンバルブの概略
断面図、第２図は内燃機関の概略断面説明図であ
る。第３図は従来のクランクケースベンチレーシ
ヨンバルブを示すクランクケースベンチレーシヨ
ンバルブの概略断面図である。
図において、２は内燃機関、４はシリンダブロ
ツク、６はシリンダヘツド、８はエアクリーナ、
１０は気化器、１２は吸気通路、１４は吸気マニ
ホルド、１６はクランクケース、１８はブローバ
イガス還流装置、２０は分岐管継手、２２はブロ
ーバイガス導入用ホース、２４はブローバイガス
供給用ホース、２６はシリンダヘツドカバー、２
８は機関側ポート部、３０はクランクケースベン
チレーシヨンバルブ、３２はガス流通孔、３４は
ケース部、３６は空間部、３８はテーパ状部、４
０は上流側端部、４２はスプリング取付用凸部、
４４はスプリング取付用第１段差部、４６はスプ
リング、４８は第２スプリング用第２取付段差部
、５０は形状記憶合金スプリング、５２はヒータ
コイルである。
1 and 2 show an embodiment of this invention; FIG. 1 is a schematic sectional view of a crankcase ventilation valve, and FIG. 2 is a schematic sectional view of an internal combustion engine. FIG. 3 is a schematic cross-sectional view of a conventional crankcase ventilation valve. In the figure, 2 is an internal combustion engine, 4 is a cylinder block, 6 is a cylinder head, 8 is an air cleaner,
10 is a carburetor, 12 is an intake passage, 14 is an intake manifold, 16 is a crankcase, 18 is a blow-by gas recirculation device, 20 is a branch pipe joint, 22 is a blow-by gas introduction hose, 24 is a blow-by gas supply hose, 26 is cylinder head cover, 2
8 is an engine side port portion, 30 is a crankcase ventilation valve, 32 is a gas distribution hole, 34 is a case portion, 36 is a space portion, 38 is a tapered portion, 4
0 is the upstream end, 42 is the spring mounting protrusion,
44 is a first step for attaching a spring, 46 is a spring, 48 is a second step for attaching a second spring, 50 is a shape memory alloy spring, and 52 is a heater coil.
Claims (1)
燃機関の吸気通路内の負圧により移動させブロー
バイガスを前記吸気通路に還元するクランクケー
スベンチレーシヨンバルブにおいて、設定温度以
下の際に前記スプリングの付勢力に抗して前記弁
体を開放方向に付勢する形状記憶合金スプリング
を設けるとともに前記内燃機関の始動時に前記形
状記憶合金スプリングを加熱する加熱部を設けた
ことを特徴とするクランクケースベンチレーシヨ
ンバルブ。 In a crankcase ventilation valve that returns blow-by gas to the intake passage by moving a valve body that is closed by the biasing force of a spring using negative pressure in the intake passage of an internal combustion engine, the spring is closed when the temperature is below a set temperature. A crankcase ventilator characterized in that a shape memory alloy spring is provided that urges the valve body in an opening direction against a force, and a heating part is provided that heats the shape memory alloy spring when the internal combustion engine is started. sion valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14242088U JPH0263015U (en) | 1988-10-31 | 1988-10-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14242088U JPH0263015U (en) | 1988-10-31 | 1988-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0263015U true JPH0263015U (en) | 1990-05-11 |
Family
ID=31408358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14242088U Pending JPH0263015U (en) | 1988-10-31 | 1988-10-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0263015U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2740909A1 (en) * | 2012-12-10 | 2014-06-11 | Honda Motor Co., Ltd. | Blow-by gas processing circuit for internal combustion engine |
| JP2017194030A (en) * | 2016-04-21 | 2017-10-26 | トヨタ紡織株式会社 | Valve device and oil mist separator including the same |
-
1988
- 1988-10-31 JP JP14242088U patent/JPH0263015U/ja active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2740909A1 (en) * | 2012-12-10 | 2014-06-11 | Honda Motor Co., Ltd. | Blow-by gas processing circuit for internal combustion engine |
| JP2014114740A (en) * | 2012-12-10 | 2014-06-26 | Honda Motor Co Ltd | Blow-by gas treatment circuit of internal combustion engine |
| US9562501B2 (en) | 2012-12-10 | 2017-02-07 | Honda Motor Co., Ltd. | Blow-by gas processing circuit for internal combustion engine |
| JP2017194030A (en) * | 2016-04-21 | 2017-10-26 | トヨタ紡織株式会社 | Valve device and oil mist separator including the same |