JPH083167Y2 - 0 of engine generator Lower 2 Sensor cooling device - Google Patents
0 of engine generator Lower 2 Sensor cooling deviceInfo
- Publication number
- JPH083167Y2 JPH083167Y2 JP1990054477U JP5447790U JPH083167Y2 JP H083167 Y2 JPH083167 Y2 JP H083167Y2 JP 1990054477 U JP1990054477 U JP 1990054477U JP 5447790 U JP5447790 U JP 5447790U JP H083167 Y2 JPH083167 Y2 JP H083167Y2
- Authority
- JP
- Japan
- Prior art keywords
- sensor
- engine
- generator
- ventilation
- cooling device
- 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.)
- Expired - Fee Related
Links
Description
【考案の詳細な説明】 〔考案の目的〕 （産業上の利用分野） 本考案はエンジンの発電機のO2センサ冷却装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Purpose of Invention] (Field of Industrial Application) The present invention relates to an O 2 sensor cooling device for an engine generator.
（従来の技術） エンジン発電機において、エンジンから出る排気ガス
の内Noxの対策は不可欠でる。(Prior Art) In engine generators, it is essential to take measures against Nox in the exhaust gas emitted from the engine.
そのNox低減対策として、三元触媒システムは非常に
高い浄化性能を有し、低Nox濃度を達成するために、O2
センサにより酸素濃度を検知しコントロールしているの
が現状である。このシステムの中心的役割を果たしてい
るO2センサが熱劣化と思われる現象で相い次いで出力変
化、出力低下が発生し、浄化機能の低下が起った。As a measure to reduce Nox, the three-way catalyst system has a very high purification performance, and in order to achieve a low Nox concentration, O 2
The present situation is that the sensor detects and controls the oxygen concentration. The O 2 sensor, which plays a central role in this system, has a change in output and a decrease in output one after another due to a phenomenon that seems to be due to thermal deterioration, and the purification function has deteriorated.
（考案が解決しようとする課題） その原因としてO2センサ大気側雰囲気温度の高温化に
よる熱劣化が考えられ、O2センサの冷却装置が要望され
ていた。(Problems to be solved by the invention) As a cause for this, thermal deterioration due to the increase in the atmospheric temperature of the O 2 sensor atmosphere is considered, and a cooling device for the O 2 sensor has been demanded.
本考案の目的は、エンジン発電機のO2センサの出力変
化、出力低下を防止するために、O2センサを冷却する装
置を簡単な構造で安価に提供することにある。An object of the present invention, the output change of the O 2 sensor of the engine generator, in order to prevent the output reduction and to provide an inexpensive device for cooling the O 2 sensor with a simple structure.
（課題を解決するための手段） 上記目的を達成するために、本考案においては、エン
ジンで駆動する発電機の冷却用ファンの排風の通路内に
通風案内板を設け、この通風案内板をガイドにして所望
量の排風を分割誘引し、エンジンのO2センサに向けて吹
きつけるノズル付通風管を発電機カバーに取付ける。(Means for Solving the Problems) In order to achieve the above object, in the present invention, a ventilation guide plate is provided in the passage for exhaust air of a cooling fan of a generator driven by an engine, and the ventilation guide plate is provided. Attach a ventilation pipe with a nozzle that guides the desired amount of exhaust air as a guide and blows it toward the O 2 sensor of the engine on the generator cover.
（作用） 上記の構成によれば、O2センサの冷却を、別の駆動源
なしで行うことができるので、簡単な構造で安価に提供
できる。(Operation) According to the above configuration, the O 2 sensor can be cooled without another drive source, so that the O 2 sensor can be provided at a low cost with a simple structure.
（実施例） 以下、本考案の一実施例について、第１図ないし第３
図を参照して説明する。これらの図において、（１）は
発電機、（２）はエンジン、（３）は排気マンホール、
（４）は発電機の冷却用ファン、（５）はファン（４）
を囲むカバー、（６）は排気マンホール（３）に取付け
たO2センサ、（７）はカバー（５）に取付けた通風管で
あって、先端に通風用のノズル（８）を設ける。ノズル
（８）はO2センサ（６）に向ける。エンジン（２）には
サポート（９）を取付けて、通風管（７）の上部を固定
する。（10）は通風案内板であって、発電機の冷却用フ
ァン（４）の排風の一部分を効率良く取り出して通風管
（７）への通風をよくするためのものである。(Embodiment) Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
It will be described with reference to the drawings. In these figures, (1) is a generator, (2) is an engine, (3) is an exhaust manhole,
(4) is a generator cooling fan, (5) is a fan (4)
Is a cover surrounding (1), (6) is an O 2 sensor attached to the exhaust manhole (3), (7) is a ventilation pipe attached to the cover (5), and a ventilation nozzle (8) is provided at the tip. The nozzle (8) faces the O 2 sensor (6). A support (9) is attached to the engine (2) to fix the upper part of the ventilation pipe (7). Reference numeral (10) is a ventilation guide plate for efficiently extracting a part of the exhaust air of the cooling fan (4) of the generator to improve ventilation to the ventilation pipe (7).
次にこの実施例の作用について説明する。 Next, the operation of this embodiment will be described.
上記装置の特徴は、エンジン（２）と発電機（１）を
一体化（胴体直結）したことによりエンジン排気マンホ
ール（３）部に発電機冷却ファン（４）による排風の一
部を図中矢印のように誘引し、O2センサ（６）の大気側
雰囲気温度の低下となるように送風することが主たる特
徴である。The above-mentioned device is characterized in that the engine (2) and the generator (1) are integrated (directly connected to the body) so that part of the exhaust air from the generator cooling fan (4) is placed in the engine exhaust manhole (3). The main feature is that the air is attracted as shown by the arrow and air is blown so that the atmospheric temperature of the O 2 sensor (6) is lowered.
利点としては発電機冷却ファン（４）の排風の一部を
専用の通風取り出し口から所望量だけ効率良く誘引する
ため、発電機本体への影響がなく、又、前記排風を利用
したスポット的冷却に優れている。そのためO2センサ
（６）を冷却するための他の駆動力が不要である。又、
発電機運転時安定した風量が確保出来るということが最
も大きな利点であり本実施例の優秀性を示す。The advantage is that part of the exhaust air of the generator cooling fan (4) is efficiently attracted by a desired amount from a dedicated ventilation outlet, so there is no effect on the generator body, and the spot using the exhaust air is used. Excellent in dynamic cooling. Therefore, another driving force for cooling the O 2 sensor (6) is unnecessary. or,
The greatest advantage is that a stable air flow can be secured when the generator is in operation, which shows the superiority of this embodiment.
以上説明したように、本考案によれば、発電機の冷却
用ファンの排風の一部を専用の通風取り出し口から効率
良く取り出して、O2センサに冷却風として誘引吹き付け
するため、発電機本体への影響がなく、又前記排風を利
用したスポット的冷却に優れており、特別な駆動源を用
いないで、簡単な構造で効率良く安価にエンジン発電機
のO2センサ冷却装置を提供できる。As described above, according to the present invention, a part of the exhaust air of the cooling fan of the generator is efficiently taken out from the dedicated ventilation outlet and is blown to the O 2 sensor as the cooling air by attracting the blower. Provides an O 2 sensor cooling device for engine generators that does not affect the main body and excels in spot cooling using the exhaust air, does not use a special drive source, has a simple structure, is efficient, and is inexpensive it can.
第１図は本考案の一実施例の要部を示す斜視図、第２図
は第１図のO2センサ冷却部を示す拡大立面図、第３図は
第１図の冷却風取出口を示す拡大断面図である。 １……発電機、２……エンジン、５……カバー、６……
O2センサ、７……通風管、８……ノズル。FIG. 1 is a perspective view showing a main part of an embodiment of the present invention, FIG. 2 is an enlarged elevational view showing an O 2 sensor cooling part of FIG. 1, and FIG. 3 is a cooling air outlet of FIG. It is an expanded sectional view showing. 1 ... Generator, 2 ... Engine, 5 ... Cover, 6 ...
O 2 sensor, 7 ... Ventilation tube, 8 ... Nozzle.
Claims (1)
の排風の通路内に通風案内板を設け、この通風案内板を
ガイドにして所望量の排風を分割誘引し、エンジンのO2
センサに向けて吹きつけるノズル付通風管を発電機カバ
ーに取付けたことを特徴とするエンジン発電機のO2セン
サ冷却装置。1. A ventilation guide plate is provided in an exhaust air passage of a cooling fan of a generator driven by an engine, and a desired amount of exhaust air is dividedly attracted by using the ventilation guide plate as a guide to generate O 2 of the engine.
An O 2 sensor cooling device for engine generators, characterized in that a ventilation pipe with a nozzle that blows toward the sensor is attached to the generator cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990054477U JPH083167Y2 (en) | 1990-05-24 | 1990-05-24 | 0 of engine generator Lower 2 Sensor cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990054477U JPH083167Y2 (en) | 1990-05-24 | 1990-05-24 | 0 of engine generator Lower 2 Sensor cooling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0414460U JPH0414460U (en) | 1992-02-05 |
| JPH083167Y2 true JPH083167Y2 (en) | 1996-01-29 |
Family
ID=31576576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990054477U Expired - Fee Related JPH083167Y2 (en) | 1990-05-24 | 1990-05-24 | 0 of engine generator Lower 2 Sensor cooling device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH083167Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002354751A (en) * | 2001-05-18 | 2002-12-06 | Fujitsu General Ltd | Electric motor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50132403A (en) * | 1974-04-08 | 1975-10-20 | ||
| JPS6192168U (en) * | 1984-11-24 | 1986-06-14 |
-
1990
- 1990-05-24 JP JP1990054477U patent/JPH083167Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0414460U (en) | 1992-02-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |