JPS58142386U - Input control device for variable displacement pump - Google Patents
Input control device for variable displacement pumpInfo
- Publication number
- JPS58142386U JPS58142386U JP10229582U JP10229582U JPS58142386U JP S58142386 U JPS58142386 U JP S58142386U JP 10229582 U JP10229582 U JP 10229582U JP 10229582 U JP10229582 U JP 10229582U JP S58142386 U JPS58142386 U JP S58142386U
- Authority
- JP
- Japan
- Prior art keywords
- pump
- chamber
- piston
- control device
- variable displacement
- 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
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図は本考案装置の一実施例を示す構成説明図、−第
２図は本考案における切換弁の一例を示す説明図である
。
１・・・・・・ケース、Ａ・・・・・・可変容積型ポン
プ、２・・・・・・こま、３，４，４ａ・・・・・・ば
ね、５−１．５−２・・・・・・第１、第２の室、６−
１． ６−２・・・・・・第１、第２のつばなしピスト
ン、？−１，７−２・・・・・・流路、８・・・・・・
第３の室、９・・・・・・つば付きピストン、１０・・
・・・・切換弁、１１，１２．１３・・・・・・流路。FIG. 1 is a configuration explanatory diagram showing one embodiment of the device of the present invention, and FIG. 2 is an explanatory diagram showing an example of the switching valve in the present invention. 1... Case, A... Variable displacement pump, 2... Top, 3, 4, 4a... Spring, 5-1.5-2 ...First and second chambers, 6-
1. 6-2...First and second pistons without flange? -1, 7-2...channel, 8...
Third chamber, 9...Piston with flange, 10...
...Switching valve, 11,12.13...Flow path.
Claims (1)
結されるこまと、このこまの一端側のケース部分に設け
た第１の室および第２の室と、この第１、第２の室にそ
れぞれ嵌装された第１、第２のつばなしピストンと、上
記こまの他側のケース部分に設けた第３の室と、この第
３の室に嵌装されたつば付きピストンと、このつば付き
ピストンと上記こまとの間に介在されこのこまを上記ポ
ンプの最大傾角側に押圧するように作用させたばねとを
備えた可変容積型ポンプの入力制御装置において、上記
第１のつばなしピストンに連結されｔこ切換弁と、上記
ケースと第１のつばなしピストンとの間に介在されこの
切換弁を無負荷位置側に押圧するように作用させたばね
と、上記第１、第２の室および上記切換弁を経て上記第
３の室へそれぞれ上記ポンプの吐出流体を導くための流
路と、上記切換弁が無負荷位置にあるとき上記第３の室
内の流体をこの切換弁を経てタンクへ開放する流路とを
備え、上記ポンプの無負荷時にその容積を最少容積まで
減少させることを可能としたことを特徴とする可変容積
型ポンプの入力制御装置。A top provided in the case and connected to the tilt angle control section of the variable displacement pump, a first chamber and a second chamber provided in the case part on one end of the top, and the first and second chambers. a third chamber provided in the case portion on the other side of the top, a piston with a flange fitted in this third chamber, and a piston with a flange fitted in the third chamber; In the input control device for a variable displacement pump, the first piston without a flange includes a spring interposed between a piston with a flange and a spring acting to press the flange toward a maximum inclination angle side of the pump. a spring interposed between the case and the first brimless piston and acting to press the switching valve toward the no-load position; and a flow path for guiding the discharge fluid of the pump to the third chamber through the switching valve, and a flow path for guiding the fluid in the third chamber through the switching valve when the switching valve is in the no-load position. What is claimed is: 1. An input control device for a variable displacement pump, characterized in that the input control device includes a flow path that opens to the pump, and is capable of reducing the volume of the pump to a minimum volume when the pump is not loaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10229582U JPS58142386U (en) | 1982-07-05 | 1982-07-05 | Input control device for variable displacement pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10229582U JPS58142386U (en) | 1982-07-05 | 1982-07-05 | Input control device for variable displacement pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58142386U true JPS58142386U (en) | 1983-09-26 |
| JPS614075Y2 JPS614075Y2 (en) | 1986-02-07 |
Family
ID=30101085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10229582U Granted JPS58142386U (en) | 1982-07-05 | 1982-07-05 | Input control device for variable displacement pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58142386U (en) |
-
1982
- 1982-07-05 JP JP10229582U patent/JPS58142386U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS614075Y2 (en) | 1986-02-07 |
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