JPS6155183U - - Google Patents
Info
- Publication number
- JPS6155183U JPS6155183U JP14035984U JP14035984U JPS6155183U JP S6155183 U JPS6155183 U JP S6155183U JP 14035984 U JP14035984 U JP 14035984U JP 14035984 U JP14035984 U JP 14035984U JP S6155183 U JPS6155183 U JP S6155183U
- Authority
- JP
- Japan
- Prior art keywords
- control
- pump
- displacement hydraulic
- variable displacement
- mode
- 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
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims 1
- 239000000446 fuel Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
Landscapes
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Description
第１図は本考案一実施例の構成説明図、第２図
は比例電磁ソレノイドの作動操作図、第３図は可
変式トルクコントロール弁の作動説明図、第４図
は第３図部の拡大図、第５図は可変式トルクコ
ントロール式の作動説明図、第６図は第５図部
の拡大図、第７図は可変容量型油圧ポンプの吐出
量と吐出圧力との関係図、第８図はトルクとエン
ジン回転数との関係図、第９図は従来における可
変容量型油圧ポンプの吐出量と吐出圧力との関係
図、第１０図はトルクとエンジン回転数との関係
図である。
１，２は可変容量型油圧ポンプ、３は制御用ポ
ンプ、１１は可変式トルクコントロール弁、２７
は比例電磁ソレノイド、３０は自動モード切換ス
イツチ。
Fig. 1 is an explanatory diagram of the configuration of one embodiment of the present invention, Fig. 2 is an operation diagram of the proportional electromagnetic solenoid, Fig. 3 is an explanatory diagram of the operation of the variable torque control valve, and Fig. 4 is an enlarged view of the part in Fig. 3. Figure 5 is an explanatory diagram of the operation of the variable torque control type, Figure 6 is an enlarged view of the part in Figure 5, Figure 7 is a diagram of the relationship between the discharge amount and discharge pressure of the variable displacement hydraulic pump, and Figure 8 is an illustration of the operation of the variable torque control type. 9 is a diagram showing the relationship between torque and engine speed, FIG. 9 is a diagram showing the relationship between discharge amount and discharge pressure of a conventional variable displacement hydraulic pump, and FIG. 10 is a diagram showing the relationship between torque and engine speed. 1 and 2 are variable displacement hydraulic pumps, 3 is a control pump, 11 is a variable torque control valve, 27
is a proportional electromagnetic solenoid, and 30 is an automatic mode changeover switch.
Claims (1)
制御用ポンプ３の吐出圧力で作動する制御機構２
３に連結し、この制御機構２３と制御用ポンプ３
との接続回路に、可変容量型油圧ポンプ１，２の
吐出圧力と比例電磁ソレノイド２７の推力とで減
圧作動する可変式トルクコントロール弁１１を設
け、比例電磁ソレノイド２７の作動回路に、燃料
レバー３１のモード切換設定位置Ｓ以下で作動さ
れてポンプ吸収トルクＴをＳモードからＬモード
に切換える自動モード切換スイツチ３０を設けた
ことを特徴とする可変容量型油圧ポンプの制御装
置。 A control mechanism 2 that operates the capacity control members of the variable displacement hydraulic pumps 1 and 2 using the discharge pressure of the control pump 3.
3, this control mechanism 23 and the control pump 3
A variable torque control valve 11 that operates to reduce the pressure by the discharge pressure of the variable displacement hydraulic pumps 1 and 2 and the thrust of the proportional electromagnetic solenoid 27 is provided in the connection circuit with the fuel lever 31 in the operating circuit of the proportional electromagnetic solenoid 27. 1. A control device for a variable displacement hydraulic pump, comprising an automatic mode changeover switch 30 which is operated below a mode changeover setting position S to change pump absorption torque T from S mode to L mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14035984U JPS6155183U (en) | 1984-09-18 | 1984-09-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14035984U JPS6155183U (en) | 1984-09-18 | 1984-09-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6155183U true JPS6155183U (en) | 1986-04-14 |
Family
ID=30698708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14035984U Pending JPS6155183U (en) | 1984-09-18 | 1984-09-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6155183U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63154874A (en) * | 1986-12-18 | 1988-06-28 | Komatsu Ltd | Contorlle for variable displacement hydraulic pump |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5960082A (en) * | 1982-09-30 | 1984-04-05 | Komatsu Ltd | Control device for variable capacity type pump |
-
1984
- 1984-09-18 JP JP14035984U patent/JPS6155183U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5960082A (en) * | 1982-09-30 | 1984-04-05 | Komatsu Ltd | Control device for variable capacity type pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63154874A (en) * | 1986-12-18 | 1988-06-28 | Komatsu Ltd | Contorlle for variable displacement hydraulic pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6155183U (en) | ||
| JPS61190488U (en) | ||
| JPH0478307U (en) | ||
| JPH0216851U (en) | ||
| JPS61191504U (en) | ||
| JPS6448401U (en) | ||
| JPH0266370U (en) | ||
| JPS6386404U (en) | ||
| JPH0638217Y2 (en) | Pressure control valve device | |
| JPS6226586U (en) | ||
| JPS6249639U (en) | ||
| JPH0315265U (en) | ||
| JPH0373703U (en) | ||
| JPS6342901U (en) | ||
| JPS6249638U (en) | ||
| JPH0351201U (en) | ||
| JPS60189602U (en) | hydraulic control circuit | |
| JPS63118402U (en) | ||
| JPH0278783U (en) | ||
| JPH029256U (en) | ||
| JPS6256801U (en) | ||
| JPH0212560U (en) | ||
| JPH0160065U (en) | ||
| JPS6278383U (en) | ||
| JPS6250261U (en) |