JPH03116730U - - Google Patents
Info
- Publication number
- JPH03116730U JPH03116730U JP2651990U JP2651990U JPH03116730U JP H03116730 U JPH03116730 U JP H03116730U JP 2651990 U JP2651990 U JP 2651990U JP 2651990 U JP2651990 U JP 2651990U JP H03116730 U JPH03116730 U JP H03116730U
- Authority
- JP
- Japan
- Prior art keywords
- seawater
- bypass passage
- valve device
- thermostat
- supercharger
- 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
- 239000013535 sea water Substances 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 9
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 239000000446 fuel Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
Description
第１図は本考案の実施例を示す海水冷却装置の
回路図、第２図は本考案開閉弁装置の第１実施例
を示す概略図、第３図は機関回転速度と海水ポン
プ吐出圧との関係を示すグラフ、第４図は本考案
開閉弁装置の第２実施例を示す概略図、第５図は
機関出力と過給機吐出圧との関係を示すグラフ、
第６図は本考案開閉弁装置の第３実施例を示す概
略図、第７図は機関回転速度と過給機吐出圧との
関係を示すグラフ、第８図は従来の海水冷却装置
の回路図である。
１……機関、２……オイルクーラ、３……アフ
タクーラ、４……海水ポンプ、５……サーモスタ
ツト、６……入口通路、７ａ，７ｂ……出口通路
、８……第１のバイパス通路、１０……第２のバ
イパス通路、１２……燃料クーラ、１３……燃料
タンク、９０，９１，９２，９３……開閉弁装置
、９１ｅ……プランジヤ、９２ｂ……開閉弁、９
２ｅ……過給機の吐出圧吸入口、９３ｂ……開閉
弁、９３ｄ……ソレノイド、９３ｊ……コントロ
ーラ。
Fig. 1 is a circuit diagram of a seawater cooling device showing an embodiment of the present invention, Fig. 2 is a schematic diagram showing a first embodiment of the on-off valve device of the invention, and Fig. 3 is a diagram showing the relationship between engine rotation speed and seawater pump discharge pressure. FIG. 4 is a schematic diagram showing the second embodiment of the on-off valve device of the present invention, FIG. 5 is a graph showing the relationship between engine output and supercharger discharge pressure,
Fig. 6 is a schematic diagram showing the third embodiment of the on-off valve device of the present invention, Fig. 7 is a graph showing the relationship between engine speed and supercharger discharge pressure, and Fig. 8 is a circuit of a conventional seawater cooling system. It is a diagram. DESCRIPTION OF SYMBOLS 1... Engine, 2... Oil cooler, 3... Aftercooler, 4... Seawater pump, 5... Thermostat, 6... Inlet passage, 7a, 7b... Outlet passage, 8... First bypass passage , 10... Second bypass passage, 12... Fuel cooler, 13... Fuel tank, 90, 91, 92, 93... On-off valve device, 91e... Plunger, 92b... On-off valve, 9
2e...Supercharger discharge pressure inlet, 93b...Opening/closing valve, 93d...Solenoid, 93j...Controller.
Claims (1)
ルクーラ、機関を配設して形成した冷却用海水の
出口通路にサーモスタツトを設け、サーモスタツ
トと海水ポンプ入口通路を第１のバイパス通路を
設けて連接すると共に、前記冷却用海水の出口通
路に並列し、且つサーモスタツトの上流側と下流
側とを連接する第２のバイパス通路を設け、該第
２のバイパス通路に開閉弁装置を設けたことを特
徴とする舶用過給機付デイーゼル機関の海水冷却
装置。 (2) 上記請求項１項記載の第２のバイパス通路
に配設された開閉弁装置は海水ポンプの吐出圧力
を検知し、制御を行うことを特徴とする請求項１
項の舶用過給機付きデイーゼル機関の海水冷却装
置。 (3) 上記請求項１項記載の第２のバイパス通路
に配設された開閉弁装置は過給機の吐出圧力を検
知し、制御を行うことを特徴とする請求項１項の
舶用過給機付きデイーゼル機関の海水冷却装置。 (4) 上記請求項１項記載の第２のバイパス通路
に配設された開閉弁装置は過給機の吐出圧力と機
関の回転速度とを検知し、制御を行うことを特徴
とする請求項１項の舶用過給機付きデイーゼル機
関の海水冷却装置。[Scope of Claim for Utility Model Registration] (1) A thermostat is provided in the cooling seawater outlet passage formed by disposing an aftercooler, oil cooler, and engine on the outlet side of the seawater pump, and the thermostat and the seawater pump inlet passage are connected. A first bypass passage is provided and connected to the thermostat, and a second bypass passage is provided which is parallel to the cooling seawater outlet passage and connects the upstream side and the downstream side of the thermostat, and the second bypass passage is connected to the cooling seawater outlet passage. A seawater cooling system for a diesel engine with a marine supercharger, characterized by having an on-off valve device. (2) Claim 1, wherein the on-off valve device disposed in the second bypass passage according to Claim 1 detects and controls the discharge pressure of the seawater pump.
Seawater cooling system for marine diesel engines with turbochargers. (3) The marine supercharging according to claim 1, wherein the on-off valve device disposed in the second bypass passage according to claim 1 detects and controls the discharge pressure of the supercharger. Seawater cooling system for diesel engine. (4) A claim characterized in that the on-off valve device disposed in the second bypass passage according to claim 1 detects and controls the discharge pressure of the supercharger and the rotational speed of the engine. Seawater cooling system for a diesel engine with a marine supercharger as described in item 1.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2651990U JPH03116730U (en) | 1990-03-14 | 1990-03-14 | |
| KR1019910701604A KR920701620A (en) | 1990-03-14 | 1991-03-14 | Seawater Cooling System for Marine Diesel Engine |
| US07/773,613 US5170753A (en) | 1990-03-14 | 1991-03-14 | Sea water cooling apparatus for marine diesel engine |
| DE914190483T DE4190483T1 (en) | 1990-03-14 | 1991-03-14 | SEAWATER COOLING APPARATUS FOR A SHIP DIESEL ENGINE |
| PCT/JP1991/000346 WO1991014084A1 (en) | 1990-03-14 | 1991-03-14 | Device for cooling marine diesel engine with seawater |
| GB9123400A GB2248495A (en) | 1990-03-14 | 1991-11-04 | Device for cooling marine diesel engine with seawater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2651990U JPH03116730U (en) | 1990-03-14 | 1990-03-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03116730U true JPH03116730U (en) | 1991-12-03 |
Family
ID=31529404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2651990U Pending JPH03116730U (en) | 1990-03-14 | 1990-03-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03116730U (en) |
-
1990
- 1990-03-14 JP JP2651990U patent/JPH03116730U/ja active Pending
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