GB927678A - A control apparatus for hydraulically manipulated implements of commercial vehicles - Google Patents
A control apparatus for hydraulically manipulated implements of commercial vehiclesInfo
- Publication number
- GB927678A GB927678A GB2065661A GB2065661A GB927678A GB 927678 A GB927678 A GB 927678A GB 2065661 A GB2065661 A GB 2065661A GB 2065661 A GB2065661 A GB 2065661A GB 927678 A GB927678 A GB 927678A
- Authority
- GB
- United Kingdom
- Prior art keywords
- conduit
- pressure
- valve
- slide valve
- chamber
- 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.)
- Expired
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B63/00—Lifting or adjusting devices or arrangements for agricultural machines or implements
- A01B63/02—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors
- A01B63/10—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means
- A01B63/1006—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means the hydraulic or pneumatic means structurally belonging to the tractor
- A01B63/1013—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means the hydraulic or pneumatic means structurally belonging to the tractor and being located inside the tractor body
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
- F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
Abstract
927,678. Tractor power-lift linkage mechanisms. ROBERT BOSCH G.m.b.H. June 8, 1961 [June 9, 1960], No. 20656/61. Class 79(1) A tractor hydraulic control apparatus comprises a slide valve 7 automatically adjustable in the cylinder 5 under the action of an implement supported by the tractor whereby either pressure fluid flows from a pump 1 to an implement working ram 20 via conduit 3, grooves 4 and 9, chamber 13 and conduits 17, 17<SP>1</SP> which include a non-return valve 18, or the pressure fluid is guided via conduit 3, grooves 4 and 8 to chamber 12 from where it is returned to reservoir 2 via return conduit 15. An auxiliary control device 32 is connected, in the " lowering " position S of the slide valve 7, to the pressure supply via conduits 26 and 31 and grooves 27, 28 so that a spring biased piston 35 is forced into the position shown in Fig. 1 whereby the chamber 13 is connected via conduit 40, and bore 42 with the return conduit 15. In this position the pressure conduit 17<SP>1</SP> is connected to the return conduit via conduit 21 and groove 23 and bore 24. in the slide valve to release pressure in the ram. In the " raising " position H of the slide valve, the pressure supply is cut off from the piston 35 so that its spring moves it to cut off the chamber 13 from the return conduit so that pressure fluid is supplied to the ram 20. In an embodiment a pressure relief valve is incorporated between conduits 3 and 15 and a blocking valve is inserted in the conduit 21 which is then connected directly to the conduit 15. The blocking valve is opened, in the " lowering " position, by pressure from the conduit 26. A compact arrangement in which all the control elements are located in one block, the auxiliary control device being located in one end of the slide valve, is also described.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB58162A DE1214088B (en) | 1960-06-09 | 1960-06-09 | Hydraulic power lift of a commercial vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB927678A true GB927678A (en) | 1963-05-29 |
Family
ID=6971972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2065661A Expired GB927678A (en) | 1960-06-09 | 1961-06-08 | A control apparatus for hydraulically manipulated implements of commercial vehicles |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH387361A (en) |
| DE (1) | DE1214088B (en) |
| DK (1) | DK103036C (en) |
| GB (1) | GB927678A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2017558A1 (en) * | 1968-09-07 | 1970-05-22 | Kloeckner Humboldt Deutz Ag | |
| GB2000009A (en) * | 1977-06-24 | 1979-01-04 | Dewandre Co Ltd C | Control Systems for Hydraulic Power Lift Mechanisms of Agricultural Tractors |
| DE2827662A1 (en) * | 1977-06-24 | 1979-01-18 | Dewandre Co Ltd C | Tractor hydraulic power lift system - has hydraulic ram with lock valve preventing leakage of fluid from ram and safety interlock valve controlling release of lock valve |
| CN110185481A (en) * | 2019-07-05 | 2019-08-30 | 郑州煤机液压电控有限公司 | It drains balance type two-way and returns liquid alternate valve |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2808477C2 (en) * | 1978-02-28 | 1992-10-22 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal | Pressure balanced valve for HFA fluids |
| DE3234820C2 (en) * | 1982-09-20 | 1993-12-23 | Heilmeier & Weinlein | Hydraulic control device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE917394C (en) * | 1952-03-12 | 1954-09-02 | Bosch Gmbh Robert | Power lift with hydraulic drive |
| FR1144281A (en) * | 1955-01-03 | 1957-10-11 | Ford France | Hydraulic device for tractor |
-
1960
- 1960-06-09 DE DEB58162A patent/DE1214088B/en active Pending
-
1961
- 1961-05-26 CH CH615161A patent/CH387361A/en unknown
- 1961-06-08 DK DK233861A patent/DK103036C/en active
- 1961-06-08 GB GB2065661A patent/GB927678A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2017558A1 (en) * | 1968-09-07 | 1970-05-22 | Kloeckner Humboldt Deutz Ag | |
| GB2000009A (en) * | 1977-06-24 | 1979-01-04 | Dewandre Co Ltd C | Control Systems for Hydraulic Power Lift Mechanisms of Agricultural Tractors |
| DE2827662A1 (en) * | 1977-06-24 | 1979-01-18 | Dewandre Co Ltd C | Tractor hydraulic power lift system - has hydraulic ram with lock valve preventing leakage of fluid from ram and safety interlock valve controlling release of lock valve |
| CN110185481A (en) * | 2019-07-05 | 2019-08-30 | 郑州煤机液压电控有限公司 | It drains balance type two-way and returns liquid alternate valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CH387361A (en) | 1965-01-31 |
| DK103036C (en) | 1965-11-08 |
| DE1214088B (en) | 1966-04-07 |
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