JPS62734U - - Google Patents
Info
- Publication number
- JPS62734U JPS62734U JP9143285U JP9143285U JPS62734U JP S62734 U JPS62734 U JP S62734U JP 9143285 U JP9143285 U JP 9143285U JP 9143285 U JP9143285 U JP 9143285U JP S62734 U JPS62734 U JP S62734U
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- temperature
- radiator
- diesel engine
- idle
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000003507 refrigerant Substances 0.000 claims 9
- 239000000498 cooling water Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第１図は本考案に係わるアイドル時騒音低減装
置の一実施例を示す正面図、第２図は同上実施例
における制御回路を示す図、第３図は同上の制御
回路における冷却水温と出力信号との関係を示す
グラフ、第４図は従来例を示す正面図、第５図は
冷却水温とアイドル騒音との関係を示すグラフで
ある。
１……エンジン、４，５……ウオータジヤケツ
ト、７……ラジエータ、８……冷却水循環通路、
１０……バイパス通路、１１……三方電磁弁、１
２……アイドル検出センサ、１３……水温センサ
、１４……制御回路。
Fig. 1 is a front view showing an embodiment of an idle noise reduction device according to the present invention, Fig. 2 is a diagram showing a control circuit in the same embodiment, and Fig. 3 is a diagram showing cooling water temperature and output signals in the same control circuit. FIG. 4 is a front view showing a conventional example, and FIG. 5 is a graph showing the relationship between cooling water temperature and idle noise. 1...Engine, 4, 5...Water jacket, 7...Radiator, 8...Cooling water circulation passage,
10... Bypass passage, 11... Three-way solenoid valve, 1
2... Idle detection sensor, 13... Water temperature sensor, 14... Control circuit.
Claims (1)
とラジエータとを接続する冷媒循環通路に該ラジ
エータをバイパスする通路を接続して備え、冷媒
の低温時は前記バイパス通路に冷媒を流通させ、
高温時は冷媒をラジエータに通過させて冷媒温度
を制御するようにしたデイーゼルエンジンにおい
て、冷媒のラジエータ及びバイパス通路への通過
量割合を制御する制御弁と、アイドル運転状態を
検出する手段と、冷媒温度を検出する手段と、両
検出手段の検出信号に基づいてアイドル運転時に
冷媒温度を他の運転時の制御温度より高いアイド
ル騒音の低減界温度に制御するべく前記制御弁を
制御する手段と、を備えたことを特徴とするデイ
ーゼルエンジンのアイドル時騒音低減装置。 A refrigerant circulation passage connecting the water jacket of the diesel engine body and the radiator is connected to a passage bypassing the radiator, and when the refrigerant is at a low temperature, the refrigerant is circulated through the bypass passage,
In a diesel engine that controls the refrigerant temperature by passing refrigerant through a radiator when the temperature is high, the refrigerant is provided with a control valve for controlling the proportion of refrigerant passing through the radiator and a bypass passage, a means for detecting an idle operating state, and a refrigerant. means for detecting temperature; and means for controlling the control valve to control the refrigerant temperature during idle operation to an idle noise reduction limit temperature higher than the control temperature during other operations based on the detection signals of both the detection means; A diesel engine idle noise reduction device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9143285U JPS62734U (en) | 1985-06-19 | 1985-06-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9143285U JPS62734U (en) | 1985-06-19 | 1985-06-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62734U true JPS62734U (en) | 1987-01-06 |
Family
ID=30647311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9143285U Pending JPS62734U (en) | 1985-06-19 | 1985-06-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62734U (en) |
-
1985
- 1985-06-19 JP JP9143285U patent/JPS62734U/ja active Pending
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