JPH0430357U - - Google Patents
Info
- Publication number
- JPH0430357U JPH0430357U JP7212390U JP7212390U JPH0430357U JP H0430357 U JPH0430357 U JP H0430357U JP 7212390 U JP7212390 U JP 7212390U JP 7212390 U JP7212390 U JP 7212390U JP H0430357 U JPH0430357 U JP H0430357U
- Authority
- JP
- Japan
- Prior art keywords
- charge pump
- hydraulic
- pump
- oil
- case
- 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
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims 2
- 239000010720 hydraulic oil Substances 0.000 claims 2
- 239000003921 oil Substances 0.000 claims 2
- 238000010992 reflux Methods 0.000 claims 2
- 230000002706 hydrostatic effect Effects 0.000 description 1
Landscapes
- Control Of Fluid Gearings (AREA)
Description
第１図は本考案の実施例を示すハイドロスタテ
イツクトランスミツシヨン（ＨＳＴ）の縦断面図
、第２図は別の実施例を示すＨＳＴの縦断面図、
第３図は従来例を示すＨＳＴの縦断面図である。
１……ケース、２……油圧ポンプ、３……油圧
モータ、４……入力軸、５……出力軸、６……シ
リンダブロツク、７……シリンダ、８……ピスト
ン、１０……可動斜板、１２……固定斜板、１３
……チヤージポンプ、１５……タンク、１６……
吸込ポート、１７……吐出ポート、１８……リリ
ーフ弁、１９……チエツク弁、２０……ドレーン
ポート、２１……オリフイス。
FIG. 1 is a longitudinal sectional view of a hydrostatic transmission (HST) showing an embodiment of the present invention, and FIG. 2 is a longitudinal sectional view of the HST showing another embodiment.
FIG. 3 is a longitudinal sectional view of a conventional HST. 1... Case, 2... Hydraulic pump, 3... Hydraulic motor, 4... Input shaft, 5... Output shaft, 6... Cylinder block, 7... Cylinder, 8... Piston, 10... Movable tilt Plate, 12...Fixed swash plate, 13
...Charge pump, 15...Tank, 16...
Suction port, 17...Discharge port, 18...Relief valve, 19...Check valve, 20...Drain port, 21...Orifice.
Claims (1)
れる油圧モータとをケースの内側に収装し、油圧
ポンプと一体回転してタンクの作動油を油圧ポン
プの吸込口に供給するチヤージポンプと、チヤー
ジポンプの余剰吐出油をチヤージポンプの吸込側
へ導く還流通路とを備えた流体トランスミツシヨ
ンにおいて、前記還流通路を、所定以上のチヤー
ジ圧で開いてチヤージポンプの吐出ポートの作動
油をケース内側へ流入させるリリーフ弁と、ケー
ス内側とチヤージポンプの吸込ポートとを連通す
る通路とで構成したことを特徴とする流体トラン
スミツシヨン。 A hydraulic pump and a hydraulic motor driven by the oil discharged from the hydraulic pump are housed inside a case, and a charge pump that rotates together with the hydraulic pump supplies hydraulic oil from a tank to the suction port of the hydraulic pump, and a charge pump that is surplus to the charge pump. A fluid transmission comprising a reflux passage that guides discharged oil to the suction side of a charge pump, and a relief valve that opens the reflux passage at a charge pressure of a predetermined level or higher to allow hydraulic oil from a discharge port of the charge pump to flow into the case. , a fluid transmission comprising a passage communicating between the inside of the case and a suction port of a charge pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990072123U JP2562687Y2 (en) | 1990-07-06 | 1990-07-06 | Fluid transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990072123U JP2562687Y2 (en) | 1990-07-06 | 1990-07-06 | Fluid transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0430357U true JPH0430357U (en) | 1992-03-11 |
| JP2562687Y2 JP2562687Y2 (en) | 1998-02-16 |
Family
ID=31609780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990072123U Expired - Lifetime JP2562687Y2 (en) | 1990-07-06 | 1990-07-06 | Fluid transmission |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2562687Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61162578U (en) * | 1985-03-29 | 1986-10-08 | ||
| JPS6383455A (en) * | 1986-09-26 | 1988-04-14 | Honda Motor Co Ltd | Hydraulic power transmission |
-
1990
- 1990-07-06 JP JP1990072123U patent/JP2562687Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61162578U (en) * | 1985-03-29 | 1986-10-08 | ||
| JPS6383455A (en) * | 1986-09-26 | 1988-04-14 | Honda Motor Co Ltd | Hydraulic power transmission |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2562687Y2 (en) | 1998-02-16 |
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