JPH01180049U - - Google Patents
Info
- Publication number
- JPH01180049U JPH01180049U JP7654088U JP7654088U JPH01180049U JP H01180049 U JPH01180049 U JP H01180049U JP 7654088 U JP7654088 U JP 7654088U JP 7654088 U JP7654088 U JP 7654088U JP H01180049 U JPH01180049 U JP H01180049U
- Authority
- JP
- Japan
- Prior art keywords
- orifice
- downstream
- control
- control device
- oil temperature
- 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
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 239000003921 oil Substances 0.000 claims 4
- 239000010720 hydraulic oil Substances 0.000 claims 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Fluid-Pressure Circuits (AREA)
- Control Of Transmission Device (AREA)
Description
第１図は本考案の第１の実施例に係る制御圧の
デユーテイ制御装置を備えた油圧回路図、第２図
は第１図の部の具体的構造を示す縦断面図、第
３図は本考案の第２の実施例に係る制御圧のデユ
ーテイ制御装置における下流側オリフイスの具体
的構造を示す縦断面図である。
１……オイルポンプ、２……ライン圧調整弁、
３……レデユーシング弁、４……変速比制御弁、
５……切換弁、６，７……電磁ソレノイド弁、１
１，１３……上流側オリフイス、１２，１４……
下流側オリフイス、３１，４５……弁体、３２，
４６……ロツド、３３……ピストン、３４……熱
膨縮部材。
Fig. 1 is a hydraulic circuit diagram equipped with a control pressure duty control device according to the first embodiment of the present invention, Fig. 2 is a vertical sectional view showing the specific structure of the part shown in Fig. 1, and Fig. 3 is FIG. 7 is a longitudinal cross-sectional view showing a specific structure of a downstream orifice in a control pressure duty control device according to a second embodiment of the present invention. 1...Oil pump, 2...Line pressure adjustment valve,
3... Reducing valve, 4... Gear ratio control valve,
5...Switching valve, 6,7...Solenoid solenoid valve, 1
1, 13... Upstream orifice, 12, 14...
Downstream orifice, 31, 45...valve body, 32,
46...rod, 33...piston, 34...thermal expansion and contraction member.
Claims (1)
リフイスと下流側オリフイスとを設けるとともに
、該二つのオリフイスの中間位置に形成した開口
部にデユーテイソレノイド弁を取付け、該デユー
テイソレノイド弁により上記開口部を開閉するこ
とによつて上記下流側オリフイスの下流側の圧力
を制御するようにした制御圧のデユーテイ制御装
置であつて、上記下流側オリフイスに、該下流側
オリフイスの絞り度合を高油温時には小さくし低
油温時には大きくする如く油温に応じて変化させ
るオリフイス制御手段が設けられていることを特
徴とする制御圧のデユーテイ制御装置。 An upstream orifice and a downstream orifice are provided one after the other in an oil passage through which hydraulic oil flows, and a duty solenoid valve is attached to an opening formed at an intermediate position between the two orifices. The control pressure duty control device is configured to control the pressure downstream of the downstream orifice by opening and closing the opening with a solenoid valve, the control pressure duty control device having a control pressure on the downstream side of the downstream orifice. A control pressure duty control device comprising an orifice control means that changes the degree according to the oil temperature so that the degree becomes smaller when the oil temperature is high and becomes larger when the oil temperature is low.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7654088U JPH01180049U (en) | 1988-06-08 | 1988-06-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7654088U JPH01180049U (en) | 1988-06-08 | 1988-06-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01180049U true JPH01180049U (en) | 1989-12-25 |
Family
ID=31301561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7654088U Pending JPH01180049U (en) | 1988-06-08 | 1988-06-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01180049U (en) |
-
1988
- 1988-06-08 JP JP7654088U patent/JPH01180049U/ja active Pending