JPS6262057U - - Google Patents
Info
- Publication number
- JPS6262057U JPS6262057U JP15347485U JP15347485U JPS6262057U JP S6262057 U JPS6262057 U JP S6262057U JP 15347485 U JP15347485 U JP 15347485U JP 15347485 U JP15347485 U JP 15347485U JP S6262057 U JPS6262057 U JP S6262057U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic pump
- hydraulic
- pressure
- circuit
- pipeline
- 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
- 230000007935 neutral effect Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims 2
- 238000006073 displacement reaction Methods 0.000 claims 2
- 230000002706 hydrostatic effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Control Of Fluid Gearings (AREA)
Description
第１図はこの考案によるＨＳＴの油圧回路の一
実施例を示す油圧回路図、第２図はこの考案の別
の実施例を示す油圧回路図、第３図は従来のＨＳ
Ｔの油圧回路を示す油圧回路図である。図中、１
：エンジン、２：油圧ポンプ、３：油圧モータ、
９，９′：管路、１１：ニユートラルバランス弁
、１２：中立ポジシヨン、１３，１４：エキスト
リームポジシヨン、１５：ばね、１６：パイロツ
ト圧回路。
Fig. 1 is a hydraulic circuit diagram showing one embodiment of the HST hydraulic circuit according to this invention, Fig. 2 is a hydraulic circuit diagram showing another embodiment of this invention, and Fig. 3 is a hydraulic circuit diagram showing a conventional HS hydraulic circuit.
It is a hydraulic circuit diagram showing the hydraulic circuit of T. In the figure, 1
: Engine, 2: Hydraulic pump, 3: Hydraulic motor,
9, 9': Pipe line, 11: Neutral balance valve, 12: Neutral position, 13, 14: Extreme position, 15: Spring, 16: Pilot pressure circuit.
Claims (1)
ポンプと、固定容量形の油圧モータとを具備して
成る静油圧トランスミツシヨンにおいて、前記油
圧ポンプと前記油圧モータとの間にニユートラル
バランス弁を設け、前記油圧ポンプ側の管路と前
記ニユートラルバランス弁との間にパイロツト圧
回路を設け、該パイロツト圧回路により前記ニユ
ートラルバランス弁のポジシヨンを切り換えるこ
とによつて、前記管路中の圧力が一定圧以下の場
合には前記油圧ポンプの両ポートを互いに連通さ
せると共に前記油圧モータの各ポートを閉じ、前
記管路中の圧力が一定圧以上の場合には前記油圧
ポンプと前記油圧モータとを閉回路に接続するよ
うにした静油圧トランスミツシヨンの油圧回路。 In a hydrostatic transmission comprising a variable displacement hydraulic pump driven by an engine and a fixed displacement hydraulic motor, a neutral balance valve is provided between the hydraulic pump and the hydraulic motor. A pilot pressure circuit is provided between the pipeline on the hydraulic pump side and the neutral balance valve, and the position of the neutral balance valve is switched by the pilot pressure circuit, thereby controlling the pressure in the pipeline. is below a certain pressure, both ports of the hydraulic pump are communicated with each other and each port of the hydraulic motor is closed, and when the pressure in the pipeline is above a certain pressure, the hydraulic pump and the hydraulic motor are connected. Hydraulic circuit of a hydrostatic transmission that connects in a closed circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15347485U JPS6262057U (en) | 1985-10-07 | 1985-10-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15347485U JPS6262057U (en) | 1985-10-07 | 1985-10-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6262057U true JPS6262057U (en) | 1987-04-17 |
Family
ID=31072390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15347485U Pending JPS6262057U (en) | 1985-10-07 | 1985-10-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6262057U (en) |
-
1985
- 1985-10-07 JP JP15347485U patent/JPS6262057U/ja active Pending
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