JPH0224080U

JPH0224080U -

Info

Publication number: JPH0224080U
Application number: JP10254188U
Authority: JP
Priority date: 1988-08-02
Filing date: 1988-08-02
Publication date: 1990-02-16
Anticipated expiration: 2003-08-02
Also published as: JPH078847Y2

Description

[Brief explanation of the drawing]

第１図〜第１１図は、本考案のデイーゼルエン
ジンの始動予熱装置の第１実施例を示す。第１図
は、その装置のシステム構成を示す結線図、第２
図は、その装置の通電制御コントローラの動作ブ
ロツク図、第３図は、その装置のランプタイマ部
のｔ１のランプタイマ特性を示すグラフ、第４図
は、その装置のプリグロータイマ部のｔ２のタイ
マ特性を示すグラフ、第５図はその装置のチヨツ
ピングタイマ部の繰返されるＯＮ時間ｔ３のタイ
マ特性を示すグラフ、第６図はその装置のチヨツ
ピングタイマ部の繰返されるＯＦＦ時間ｔ４ｂ，
ｔ４ａのタイマ特性を示すグラフ、第７図はその
装置のアフタグロータイマ部のｔ６のタイマ特性
を示すグラフ、第８図は保温タイマ部のｔ５のタ
イマ特性を示すグラフ、第９図はその装置の水温
５０℃未満で、キースイツチ６をグロー側に放置
した場合の動作チヤート図、第１０図は水温５０
℃未満での正規始動の場合の動作チヤート図、第
１１図は水温５０℃以上での正規始動の場合の動
作チヤート図である。第１２図〜第１５図は従来
のデイーゼルエンジンの始動予熱装置を示す。第
１２図はその装置の構成図、第１３図はその装置
の水温３０℃以下の時の作動を示す動作チヤート
図、第１４図はその装置の水温３０℃を越える時
の作動を示す動作チヤート図、第１５図はリレー
ＯＦＦ・ＯＮ回数と耐久サイクルを示すグラフで
ある。図中、１……水温センサ、２……キースイツチ
、３……グロープラグ、４……リレー、５……表
示ランプ（表示手段）、６……通電制御コントロ
ーラ、ｔ１……ランプが消灯するまでの時間、ｔ
２……初期リレー通電時間、ｔ３……ＯＮ時間、
ｔ４ａ……クランキング中のＯＦＦ時間、ｔ４ｂ
……保温およびアフターグロー中のＯＦＦ時間、
ｔ５……保温を保持する時間（設定時間）、ｔ６
……アフターグローを行う時間、Ａ……デイーゼ
ルエンジンの始動予熱装置。 1 to 11 show a first embodiment of the diesel engine starting preheating device of the present invention. Figure 1 is a wiring diagram showing the system configuration of the device;
The figure is an operational block diagram of the energization control controller of the device, FIG. 3 is a graph showing the lamp timer characteristics at t1 of the lamp timer section of the device, and FIG. 4 is the graph showing the t2 characteristic of the pre-glow timer section of the device. A graph showing the timer characteristics, FIG. 5 is a graph showing the timer characteristics of the repeated ON time t3 of the stepping timer section of the device, and FIG. 6 is a graph showing the repeated OFF time t4b of the stepping timer section of the device.
A graph showing the timer characteristics at t4a, FIG. 7 is a graph showing the timer characteristics at t6 of the afterglow timer section of the device, FIG. 8 is a graph showing the timer characteristics at t5 of the heat retention timer section, and FIG. Figure 10 is an operation chart when the key switch 6 is left on the glow side when the water temperature is below 50°C.
FIG. 11 is an operation chart for normal starting at a water temperature of 50° C. or higher. 12 to 15 show a conventional starting preheating device for a diesel engine. Fig. 12 is a configuration diagram of the device, Fig. 13 is an operation chart showing the operation of the device when the water temperature is below 30°C, and Fig. 14 is an operation chart showing the operation of the device when the water temperature exceeds 30°C. FIG. 15 is a graph showing the number of times the relay is turned OFF/ON and the durability cycle. In the figure, 1...Water temperature sensor, 2...Key switch, 3...Glow plug, 4...Relay, 5...Display lamp (display means), 6...Electrification control controller, t1...Until the lamp goes out time, t
2...Initial relay energization time, t3...ON time,
t4a...OFF time during cranking, t4b
...OFF time during heat retention and afterglow,
t5...Time for keeping warm (set time), t6
...Time to perform afterglow, A...Start preheating device for diesel engine.

Claims

[Scope of claim for utility model registration] A water temperature sensor that detects the engine cooling water temperature;
a key switch, a glow plug, a relay, a display means for notifying cranking timing; after the key switch is turned on to the glow side, the glow plug is rapidly preheated for an initial relay energization time corresponding to the voltage applied to the glow plug; When the preheating is completed, the display means is activated, and the relay is repeatedly turned off and turned off for a set time determined including the initial relay energization time from the end of the initial relay energization time.
N to keep the glow plug warm, and during cranking when the key switch is held on the starter side, the key switch is then turned OFF and ON repeatedly, and when the cooling water temperature is below the set value, the afterglow is performed, and the above-mentioned repetition is continued. In the starting preheating device for a diesel engine, the diesel engine starting preheating device includes an energization control controller that controls turning OFF and ON, wherein the energization control controller notifies cranking timing on a display means according to the cooling water temperature; If the water temperature exceeds the set value, the initial relay energization time is set to 0, and the relay is repeatedly energized only when the key switch is held on the starter side, and the relay is energized in the order of ON and OFF, and the ON time is Determined according to the applied voltage, if the cooling water temperature is below the set value and the key switch is left on the glow side,
The set time is determined according to the cooling water temperature, and the relay energization is turned OFF/ON during this set time.
(a) When the key switch is turned to the starter side, the afterglow time is continuously varied and determined according to the cooling water temperature from the time the key switch is turned back to the glow side. The OFF/ON relay is energized during the OFF/ON relay, and the OFF time during cranking is repeated during the heat retention or afterglow in each case.
A starting preheating device for a diesel engine, characterized in that the time is longer than F time and is set to a constant value.