JPH0189657U - - Google Patents
Info
- Publication number
- JPH0189657U JPH0189657U JP18538087U JP18538087U JPH0189657U JP H0189657 U JPH0189657 U JP H0189657U JP 18538087 U JP18538087 U JP 18538087U JP 18538087 U JP18538087 U JP 18538087U JP H0189657 U JPH0189657 U JP H0189657U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic motor
- hydraulic
- solenoid valve
- capacity
- speed
- 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
- 230000005540 biological transmission Effects 0.000 claims description 4
- 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図は本考案による自動変速装置を示す油圧
回路図、第２図は本考案による車速切換えパター
ンを示す図、第３図はＨＳＴによる駆動装置の概
略説明図、第４図は従来のＨＳＴの油圧回路図で
ある。図中、
１……エンジン、２……油圧ポンプ、３……油
圧モータ、８，９……ホース、１２……１，２速
切換用のソレノイドバルブ、２０……圧力スイツ
チ、２２……スプール、３０……スイツチ。
Fig. 1 is a hydraulic circuit diagram showing an automatic transmission according to the present invention, Fig. 2 is a diagram showing a vehicle speed switching pattern according to the invention, Fig. 3 is a schematic explanatory diagram of a drive system using an HST, and Fig. 4 is a diagram showing a conventional HST. FIG. In the figure, 1...Engine, 2...Hydraulic pump, 3...Hydraulic motor, 8, 9...Hose, 12...Solenoid valve for switching between 1st and 2nd speeds, 20...Pressure switch, 22...Spool , 30...Switch.
Claims (1)
ポンプと、回転力がタイヤに伝達される可変容量
型の油圧モータとを閉回路に接続して成る静油圧
トランスミツシヨンを搭載し、前記油圧モータの
容量をソレノイドバルブにより変えて第１速と第
２速の切換えができるようになつている車両にお
いて、 前記油圧モータと前記油圧ポンプとを閉回路に
接続する２本の管路の圧力差を検出する圧力スイ
ツチを設け、前記圧力差に応じて前記圧力スイツ
チが前記ソレノイドバルブのポジシヨンを電気的
に切り換えて前記油圧モータの容量を切り換える
ようにした静油圧トランスミツシヨン搭載車両の
自動変速装置。[Claim for Utility Model Registration] A hydrostatic transmission consisting of a variable displacement hydraulic pump driven by an engine and a variable displacement hydraulic motor whose rotational force is transmitted to the tires, connected in a closed circuit. In a vehicle equipped with a hydraulic motor and capable of switching between a first speed and a second speed by changing the capacity of the hydraulic motor using a solenoid valve, the hydraulic motor and the hydraulic pump are connected to a closed circuit. A hydrostatic hydraulic transmission is provided with a pressure switch that detects a pressure difference in a main pipeline, and the pressure switch electrically switches the position of the solenoid valve and switches the capacity of the hydraulic motor according to the pressure difference. Automatic transmission system for vehicles equipped with SYON.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18538087U JPH0189657U (en) | 1987-12-07 | 1987-12-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18538087U JPH0189657U (en) | 1987-12-07 | 1987-12-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0189657U true JPH0189657U (en) | 1989-06-13 |
Family
ID=31476699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18538087U Pending JPH0189657U (en) | 1987-12-07 | 1987-12-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0189657U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5229381A (en) * | 1975-08-28 | 1977-03-05 | Fujitsu Ltd | Method for sealing chemicals |
-
1987
- 1987-12-07 JP JP18538087U patent/JPH0189657U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5229381A (en) * | 1975-08-28 | 1977-03-05 | Fujitsu Ltd | Method for sealing chemicals |