JPS6351184U - - Google Patents
Info
- Publication number
- JPS6351184U JPS6351184U JP14485686U JP14485686U JPS6351184U JP S6351184 U JPS6351184 U JP S6351184U JP 14485686 U JP14485686 U JP 14485686U JP 14485686 U JP14485686 U JP 14485686U JP S6351184 U JPS6351184 U JP S6351184U
- Authority
- JP
- Japan
- Prior art keywords
- constant horsepower
- variable
- control
- valve
- 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
- 230000008713 feedback mechanism Effects 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims 3
- 230000007935 neutral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Compressor (AREA)
- Fluid-Pressure Circuits (AREA)
Description
第１図は本考案にかかる液圧ポンプの要部であ
る定馬力制御弁を示す断面図、第２図は同液圧ポ
ンプの可変制御要素部分を示す断面図、第３図は
定比減圧弁の断面図、第４図は制御特性を示すグ
ラフ、第５図は従来例を示す説明図である。
２……可変制御要素、３……コントロールプラ
ンジヤ、４……定馬力制御弁、４１……弁本体、
４４……スプール、Ｆ……フイードバツク機構、
Ｓ……ストツパー。
Fig. 1 is a sectional view showing a constant horsepower control valve which is a main part of the hydraulic pump according to the present invention, Fig. 2 is a sectional view showing a variable control element part of the hydraulic pump, and Fig. 3 is a constant ratio reduction pressure. FIG. 4 is a sectional view of the valve, FIG. 4 is a graph showing control characteristics, and FIG. 5 is an explanatory diagram showing a conventional example. 2... Variable control element, 3... Control plunger, 4... Constant horsepower control valve, 41... Valve body,
44... Spool, F... Feedback mechanism,
S...stopper.
Claims (1)
るコントロールプランジヤ３と、このプランジヤ
３を操作して定馬力制御を行う定馬力制御弁４、
及び前記可変制御要素２の変位量を前記定馬力制
御弁４にフイードバツクさせるフイードバツク機
構Ｆを備えた可変容量形液圧ポンプであつて、前
記定馬力制御弁４における弁本体４１に、該弁本
体４１に内装するスプール４４を、前記可変制御
要素２が中立位置となる手前で受止めるストツパ
ーＳを設けたことを特徴とする可変容量形液圧ポ
ンプ。 A variable control element 2, a control plunger 3 that adjusts the amount of displacement of the element 2, and a constant horsepower control valve 4 that operates the plunger 3 to perform constant horsepower control.
and a feedback mechanism F that feeds back the displacement amount of the variable control element 2 to the constant horsepower control valve 4, the valve body 41 of the constant horsepower control valve 4 having a valve body. 41. A variable displacement hydraulic pump characterized in that a stopper S is provided for receiving a spool 44 housed in a spool 41 before the variable control element 2 reaches a neutral position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14485686U JPH0721907Y2 (en) | 1986-09-20 | 1986-09-20 | Variable displacement hydraulic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14485686U JPH0721907Y2 (en) | 1986-09-20 | 1986-09-20 | Variable displacement hydraulic pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6351184U true JPS6351184U (en) | 1988-04-06 |
| JPH0721907Y2 JPH0721907Y2 (en) | 1995-05-17 |
Family
ID=31055851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14485686U Expired - Lifetime JPH0721907Y2 (en) | 1986-09-20 | 1986-09-20 | Variable displacement hydraulic pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0721907Y2 (en) |
-
1986
- 1986-09-20 JP JP14485686U patent/JPH0721907Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0721907Y2 (en) | 1995-05-17 |