JPH0476963U - - Google Patents
Info
- Publication number
- JPH0476963U JPH0476963U JP12136990U JP12136990U JPH0476963U JP H0476963 U JPH0476963 U JP H0476963U JP 12136990 U JP12136990 U JP 12136990U JP 12136990 U JP12136990 U JP 12136990U JP H0476963 U JPH0476963 U JP H0476963U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- fuel
- internal combustion
- combustion engine
- power supply
- 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.)
- Granted
Links
- 239000000446 fuel Substances 0.000 claims description 9
- 230000037452 priming Effects 0.000 claims description 3
- 239000002828 fuel tank Substances 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 claims 4
- 230000005284 excitation Effects 0.000 claims 2
- 230000000740 bleeding effect Effects 0.000 claims 1
- 230000005347 demagnetization Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第１図はこの考案の実施例を示す燃料供給系の
構成図、第２図は同じく供給ポンプの電源回路、
第３図は他の実施例を示す供給ポンプの電源回路
、第４図はさらに別の実施例を説明するリレーの
制御特性図、第５図は従来技術の問題点を説明す
る供給ポンプ直下流の燃料圧力の変化特性図であ
る。
１……燃料噴射ポンプ、２……供給ポンプ、３
……燃料タンク、８……ポンプ電源回路、９……
抵抗、１２……リレー、１４……アクセルスイツ
チ、１５……エンジンキースイツチ、２０……プ
ライミングスイツチ、２１……ダイオード。
Fig. 1 is a configuration diagram of a fuel supply system showing an embodiment of this invention, Fig. 2 is a power supply circuit of the supply pump,
FIG. 3 is a supply pump power supply circuit showing another embodiment, FIG. 4 is a control characteristic diagram of a relay explaining another embodiment, and FIG. FIG. 3 is a characteristic diagram of changes in fuel pressure. 1... Fuel injection pump, 2... Supply pump, 3
...Fuel tank, 8...Pump power supply circuit, 9...
Resistor, 12... Relay, 14... Accelerator switch, 15... Engine key switch, 20... Priming switch, 21... Diode.
Claims (1)
電動の供給ポンプを備えた内燃機関の燃料供給装
置において、供給ポンプの電源回路の一部に抵抗
を介在させた通電回路と抵抗を介在させない通電
回路との並列回路を構成し、励磁時に抵抗を介在
させた通電回路を、消磁時に抵抗を介在させない
通電回路を選択的に閉成するリレーを設け、リレ
ーの励磁回路を少なくともエンジンのアイドル回
転域でＯＮになるアクセルスイツチを介して供給
ポンプの電源回路の共通回路部分に接続したこと
を特徴とする内燃機関の燃料供給装置。 ２ 供給ポンプの電源回路の共通回路部分に燃料
系内のエア抜き時に使用するプライミングスイツ
チをエンジンキースイツチと並列に接続すると共
に、プライミングスイツチを通した電源電流のア
クセルスイツチ側への通電を規制するダイオード
を設けたことを特徴とする請求項１に記載の内燃
機関の燃料供給装置。[Scope of Claim for Utility Model Registration] 1. In a fuel supply device for an internal combustion engine equipped with an electric supply pump that supplies fuel from a fuel tank to the engine side, an energizing circuit in which a resistor is interposed in a part of the power supply circuit of the supply pump. and an energizing circuit without an intervening resistor, and a relay is provided that selectively closes the energizing circuit with a resistor during excitation and the energizing circuit without a resistor during demagnetization, and the excitation circuit of the relay is 1. A fuel supply device for an internal combustion engine, characterized in that the fuel supply device for an internal combustion engine is connected to a common circuit portion of a power supply circuit of a supply pump via an accelerator switch that is turned on at least in the idling rotation range of the engine. 2 Connect the priming switch used for bleeding air in the fuel system in parallel with the engine key switch to the common circuit part of the supply pump power supply circuit, and restrict the supply of power supply current through the priming switch to the accelerator switch side. The fuel supply device for an internal combustion engine according to claim 1, further comprising a diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990121369U JP2531720Y2 (en) | 1990-11-20 | 1990-11-20 | Fuel supply device for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990121369U JP2531720Y2 (en) | 1990-11-20 | 1990-11-20 | Fuel supply device for internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0476963U true JPH0476963U (en) | 1992-07-06 |
| JP2531720Y2 JP2531720Y2 (en) | 1997-04-09 |
Family
ID=31869229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990121369U Expired - Lifetime JP2531720Y2 (en) | 1990-11-20 | 1990-11-20 | Fuel supply device for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2531720Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5747761U (en) * | 1980-08-31 | 1982-03-17 |
-
1990
- 1990-11-20 JP JP1990121369U patent/JP2531720Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5747761U (en) * | 1980-08-31 | 1982-03-17 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2531720Y2 (en) | 1997-04-09 |
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