JPS59165964U - Pressure regulating valve of distribution type fuel injection pump - Google Patents
Pressure regulating valve of distribution type fuel injection pumpInfo
- Publication number
- JPS59165964U JPS59165964U JP6186183U JP6186183U JPS59165964U JP S59165964 U JPS59165964 U JP S59165964U JP 6186183 U JP6186183 U JP 6186183U JP 6186183 U JP6186183 U JP 6186183U JP S59165964 U JPS59165964 U JP S59165964U
- Authority
- JP
- Japan
- Prior art keywords
- pump chamber
- increase
- rate
- fuel injection
- distribution type
- 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
Landscapes
- High-Pressure Fuel Injection Pump Control (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の進角特性を示す図、第２図は従′来の分
配型燃料噴射ポンプの要部縦断面図、第３図は本考案に
より実現された進角特性を示す図、第４図乃至第６図は
、本考案に係る調圧弁の一実施例を示す断面図である。
１・・・分配型燃料噴射ポンプ、１ａ・・・ハウジング
、訃・・ポンプ室、２２・・・調圧弁、２３・・・ピス
トンホルダー、２４・・・ピストン、２９．３０．３１
・・・オリフィス。
”−／２６
１８ １
Ｐｔ ｐｆ２６
２６８
１８
ｔ −Fig. 1 is a diagram showing the conventional advance angle characteristic, Fig. 2 is a longitudinal sectional view of the main part of a conventional distribution type fuel injection pump, and Fig. 3 is a diagram showing the advance angle characteristic realized by the present invention. 4 to 6 are cross-sectional views showing one embodiment of the pressure regulating valve according to the present invention. DESCRIPTION OF SYMBOLS 1... Distribution type fuel injection pump, 1a... Housing, End... Pump chamber, 22... Pressure regulating valve, 23... Piston holder, 24... Piston, 29.30.31
...orifice. ”-/26 18 1 Pt pf26
268
18 t-
Claims (1)
室圧を制御して進角装置の進角特性を変化させる分配型
燃料噴射ポンプの調圧弁において、ピストンホルダ内に
嵌挿されたピストンがポンプ室圧を受けてピストンホル
ダ内を摺動しピストンホルダに設けたオリフィスの開口
を変化させてポンプ室へ圧送する燃料量を変化させ、機
関の回転数の上昇と共に第１蔭において、ポンプ室へ圧
送する燃料量の増加率を小にしてポンプ室圧の上昇率を
小にし、第２段においてポンプ室へ圧送する燃料量の増
加率を大にしてポンプ室圧の上昇率を大にし、終段にお
いてポンプ室へ圧送する燃料量の増加率を小にしてポン
プ室圧の上昇率を小に制御するようにしたことを特徴と
する分配型燃料噴射ポンプの調圧弁。In the pressure regulating valve of the distribution type fuel injection pump, which is installed in the housing of the distribution type fuel injection pump and controls the pump chamber pressure to change the advance angle characteristics of the advance angle device, the piston inserted into the piston holder is used to control the pump. The piston slides inside the piston holder in response to room pressure and changes the opening of the orifice provided in the piston holder to change the amount of fuel pumped to the pump chamber, and as the engine speed rises, the fuel is transferred to the pump chamber in the first shade. In the second stage, the rate of increase in the amount of fuel to be pressurized is decreased to decrease the rate of increase in pump chamber pressure, and in the second stage, the rate of increase in the amount of fuel to be pressurized to the pump chamber is increased to increase the rate of increase in pump chamber pressure. 1. A pressure regulating valve for a distribution type fuel injection pump, characterized in that the rate of increase in the amount of fuel pumped into the pump chamber is controlled to be small in each stage, thereby controlling the rate of increase in pump chamber pressure to be small.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6186183U JPS59165964U (en) | 1983-04-25 | 1983-04-25 | Pressure regulating valve of distribution type fuel injection pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6186183U JPS59165964U (en) | 1983-04-25 | 1983-04-25 | Pressure regulating valve of distribution type fuel injection pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59165964U true JPS59165964U (en) | 1984-11-07 |
| JPH0241320Y2 JPH0241320Y2 (en) | 1990-11-02 |
Family
ID=30192076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6186183U Granted JPS59165964U (en) | 1983-04-25 | 1983-04-25 | Pressure regulating valve of distribution type fuel injection pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59165964U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02238135A (en) * | 1989-03-10 | 1990-09-20 | Diesel Kiki Co Ltd | Fuel injection pump |
| JPH02144628U (en) * | 1989-05-09 | 1990-12-07 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS512837A (en) * | 1974-06-26 | 1976-01-10 | Diesel Kiki Co | JIDOFUNSHAJIKICHOSEISOCHI |
| JPS5461127U (en) * | 1977-10-06 | 1979-04-27 | ||
| JPS5462423A (en) * | 1977-10-28 | 1979-05-19 | Diesel Kiki Co Ltd | Advance characteristic controlling system of distribution type fuel jet pump for internal combustion engine and its apparatus |
| JPS55151124A (en) * | 1979-05-10 | 1980-11-25 | Bosch Gmbh Robert | Fuel injection pump for internal combustion engine |
-
1983
- 1983-04-25 JP JP6186183U patent/JPS59165964U/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS512837A (en) * | 1974-06-26 | 1976-01-10 | Diesel Kiki Co | JIDOFUNSHAJIKICHOSEISOCHI |
| JPS5461127U (en) * | 1977-10-06 | 1979-04-27 | ||
| JPS5462423A (en) * | 1977-10-28 | 1979-05-19 | Diesel Kiki Co Ltd | Advance characteristic controlling system of distribution type fuel jet pump for internal combustion engine and its apparatus |
| JPS55151124A (en) * | 1979-05-10 | 1980-11-25 | Bosch Gmbh Robert | Fuel injection pump for internal combustion engine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02238135A (en) * | 1989-03-10 | 1990-09-20 | Diesel Kiki Co Ltd | Fuel injection pump |
| JPH02144628U (en) * | 1989-05-09 | 1990-12-07 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0241320Y2 (en) | 1990-11-02 |
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