JPS6239004U - - Google Patents
Info
- Publication number
- JPS6239004U JPS6239004U JP13185885U JP13185885U JPS6239004U JP S6239004 U JPS6239004 U JP S6239004U JP 13185885 U JP13185885 U JP 13185885U JP 13185885 U JP13185885 U JP 13185885U JP S6239004 U JPS6239004 U JP S6239004U
- Authority
- JP
- Japan
- Prior art keywords
- flow path
- main
- hydraulic jack
- main valve
- oil
- 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
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Types And Forms Of Lifts (AREA)
- Fluid-Pressure Circuits (AREA)
Description
図面の第１図ないし第３図は本考案の実施例を
示し、第１図は流量制御装置の油圧回路図、第２
図は他の実施例を示す油圧回路図、第３図は第２
図の回路図の一部分の構造例を示す断面図、第４
図は従来の流量制御装置の油圧回路図である。
１……第１主流路、２……第２主流路、３……
第１主弁、４……第２主弁、５……第１パイロツ
ト流路（パイロツト流路）、６……第２パイロツ
ト流路（パイロツト流路）、Ｊ……油圧ジヤツキ
、Ｊ１……油室、Ｐ……油圧ポンプ、Ｔ……油タ
ンク。
1 to 3 of the drawings show an embodiment of the present invention, and FIG. 1 is a hydraulic circuit diagram of a flow rate control device, and FIG.
The figure is a hydraulic circuit diagram showing another embodiment, and Figure 3 is a hydraulic circuit diagram showing another embodiment.
A cross-sectional view showing a structural example of a part of the circuit diagram shown in FIG.
The figure is a hydraulic circuit diagram of a conventional flow control device. 1...First main flow path, 2...Second main flow path, 3...
First main valve, 4... Second main valve, 5... First pilot flow path (pilot flow path), 6... Second pilot flow path (pilot flow path), J... Hydraulic jack, J1... Oil chamber, P...hydraulic pump, T...oil tank.
Claims (1)
油が流れる第１主流路と、油圧ジヤツキの油室か
ら油タンクへ向けて圧油が流れる第２主流路と、
第１主流路および第２主流路の流量をそれぞれ制
御するように設けられた第１主弁および第２主弁
と、第１主弁および第２主弁を制御するためのパ
イロツト流路とを有する油圧ジヤツキの流量制御
装置において、前記パイロツト流路は、前記油圧
ジヤツキの油室の背圧をその圧油源とするように
接続されてなることを特徴とする油圧ジヤツキの
流量制御装置。 a first main flow path through which pressure oil flows from the hydraulic pump to the oil chamber of the hydraulic jack; a second main flow path through which pressure oil flows from the oil chamber of the hydraulic jack toward the oil tank;
A first main valve and a second main valve provided to control the flow rates of the first main flow path and the second main flow path, respectively, and a pilot flow path for controlling the first main valve and the second main valve. 1. A flow rate control device for a hydraulic jack, wherein the pilot flow path is connected to use back pressure in an oil chamber of the hydraulic jack as a pressure oil source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985131858U JPH066246Y2 (en) | 1985-08-28 | 1985-08-28 | Flow control device for hydraulic jack for hydraulic elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985131858U JPH066246Y2 (en) | 1985-08-28 | 1985-08-28 | Flow control device for hydraulic jack for hydraulic elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6239004U true JPS6239004U (en) | 1987-03-09 |
| JPH066246Y2 JPH066246Y2 (en) | 1994-02-16 |
Family
ID=31030700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985131858U Expired - Lifetime JPH066246Y2 (en) | 1985-08-28 | 1985-08-28 | Flow control device for hydraulic jack for hydraulic elevator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH066246Y2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9532139B1 (en) | 2012-09-14 | 2016-12-27 | Cirrus Logic, Inc. | Dual-microphone frequency amplitude response self-calibration |
| US9502020B1 (en) | 2013-03-15 | 2016-11-22 | Cirrus Logic, Inc. | Robust adaptive noise canceling (ANC) in a personal audio device |
| US9478210B2 (en) | 2013-04-17 | 2016-10-25 | Cirrus Logic, Inc. | Systems and methods for hybrid adaptive noise cancellation |
| US9578432B1 (en) | 2013-04-24 | 2017-02-21 | Cirrus Logic, Inc. | Metric and tool to evaluate secondary path design in adaptive noise cancellation systems |
| US9552805B2 (en) | 2014-12-19 | 2017-01-24 | Cirrus Logic, Inc. | Systems and methods for performance and stability control for feedback adaptive noise cancellation |
| US9578415B1 (en) | 2015-08-21 | 2017-02-21 | Cirrus Logic, Inc. | Hybrid adaptive noise cancellation system with filtered error microphone signal |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49116758A (en) * | 1973-03-14 | 1974-11-07 | ||
| JPS5281847A (en) * | 1975-12-27 | 1977-07-08 | Mitsubishi Heavy Ind Ltd | Hydraulic elevator |
| JPS577764U (en) * | 1980-06-12 | 1982-01-14 |
-
1985
- 1985-08-28 JP JP1985131858U patent/JPH066246Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49116758A (en) * | 1973-03-14 | 1974-11-07 | ||
| JPS5281847A (en) * | 1975-12-27 | 1977-07-08 | Mitsubishi Heavy Ind Ltd | Hydraulic elevator |
| JPS577764U (en) * | 1980-06-12 | 1982-01-14 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH066246Y2 (en) | 1994-02-16 |
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