JPS638317B2 - - Google Patents
Info
- Publication number
- JPS638317B2 JPS638317B2 JP54131401A JP13140179A JPS638317B2 JP S638317 B2 JPS638317 B2 JP S638317B2 JP 54131401 A JP54131401 A JP 54131401A JP 13140179 A JP13140179 A JP 13140179A JP S638317 B2 JPS638317 B2 JP S638317B2
- Authority
- JP
- Japan
- Prior art keywords
- piston
- pump
- spool
- spring
- pressure
- 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.)
- Expired
Links
- 238000006073 displacement reaction Methods 0.000 claims description 11
- 230000007423 decrease Effects 0.000 claims description 6
- 230000008713 feedback mechanism Effects 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
Landscapes
- Reciprocating Pumps (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13140179A JPS5654982A (en) | 1979-10-11 | 1979-10-11 | Controller for variable capacity pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13140179A JPS5654982A (en) | 1979-10-11 | 1979-10-11 | Controller for variable capacity pump |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5654982A JPS5654982A (en) | 1981-05-15 |
JPS638317B2 true JPS638317B2 (pl) | 1988-02-22 |
Family
ID=15057106
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13140179A Granted JPS5654982A (en) | 1979-10-11 | 1979-10-11 | Controller for variable capacity pump |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5654982A (pl) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5888480A (ja) * | 1981-11-21 | 1983-05-26 | Hitachi Constr Mach Co Ltd | 原動機で駆動される油圧ポンプの入力制御装置 |
JPS601392A (ja) * | 1983-06-20 | 1985-01-07 | Komatsu Ltd | 可変容量型油圧ポンプの制御装置 |
JPS60145287U (ja) * | 1984-03-08 | 1985-09-26 | 内田油圧機器工業株式会社 | 可変容量ポンプの流量制御装置 |
JPH0658111B2 (ja) * | 1984-11-30 | 1994-08-03 | 株式会社小松製作所 | 可変容量型油圧ポンプの吐出量制御装置 |
JPS61149789U (pl) * | 1985-03-08 | 1986-09-16 | ||
JPS61184888U (pl) * | 1985-05-13 | 1986-11-18 | ||
JPH0744770Y2 (ja) * | 1987-06-16 | 1995-10-11 | 川崎重工業株式会社 | 油圧ポンプの馬力制御機構 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4941902A (pl) * | 1972-08-28 | 1974-04-19 |
-
1979
- 1979-10-11 JP JP13140179A patent/JPS5654982A/ja active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4941902A (pl) * | 1972-08-28 | 1974-04-19 |
Also Published As
Publication number | Publication date |
---|---|
JPS5654982A (en) | 1981-05-15 |
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