CS224936B1 - The device for the decrease of the pressure of hydraulic aggregates at the iddle running - Google Patents
The device for the decrease of the pressure of hydraulic aggregates at the iddle running Download PDFInfo
- Publication number
- CS224936B1 CS224936B1 CS417782A CS417782A CS224936B1 CS 224936 B1 CS224936 B1 CS 224936B1 CS 417782 A CS417782 A CS 417782A CS 417782 A CS417782 A CS 417782A CS 224936 B1 CS224936 B1 CS 224936B1
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- pressure
- hydraulic
- cylinder
- piston
- double
- Prior art date
Links
- 239000003921 oil Substances 0.000 description 5
- 230000001419 dependent effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Landscapes
- Fluid-Pressure Circuits (AREA)
Description
Vynález rieši zariadenie na znižovanie tlaku hydraulického agregátu pri chodě naprázdno*The invention solves a device for reducing the pressure of a hydraulic power unit during idling.
Presnosť a spolahlivosť chodu hydraulických mechanizmov je v značnej miere závislá od teploty pracovného oleja. Táto je závislá od pracovného tlaku a hydraulických odporov obvodu* Najvačšie oteplenie nastává vtedy, keď stroj alebo zariadenie nepracuje a čerpadlo agregátu pracuje s plným tlakom· Pri agregátoch e regulačným ventilom, kde je tlak hydraulického obvodu regulovaný etavacou skrutkou, ktorá zvyšuje predpátie pružiny a tým aj odpor regulačnej ihly proti pretekaniu oleja je prevádzkový tlak stále rovnaký, bez ohladu na to, či stroj pracuje alebo nie· V dósledku toho zvyšovanie teploty pracovného oleja spósobuje změnu viskozity oleja, značné tepelné namáhaní e ovládacích prvkov v hydraulickom obvode, znižovanie ioh spolehlivosti a životnosti a tým ovplyvňuje aj chod celého stroja alebo zariadenia, súčasťou ktorého je hydraulický. agregát.The accuracy and reliability of the operation of the hydraulic mechanisms is largely dependent on the temperature of the working oil. This is dependent on the working pressure and the hydraulic resistance of the circuit * The greatest warming occurs when the machine or equipment is not operating and the pump is operating at full pressure · For aggregates with a control valve where the hydraulic circuit pressure is regulated by a bolt the operating pressure of the control needle is still the same, regardless of whether the machine is working or not. As a result, increasing the temperature of the working oil causes a change in oil viscosity, considerable thermal stress on the controls in the hydraulic circuit, and therefore affects the operation of the entire machine or equipment of which it is hydraulic. unit.
Uvedené nedostatky odstraňuje zariadenie ná znižovanie tlaku hydraulického agregátu pri chodě naprázdno, pozoetátajúce z valca s dvojčinným piestom, nastavovacích matic a rožvádzača podlá vynálezu, ktorého podstata spočívá v tom, že piestna tyč dvojčinného piestu, umiestneného vo válci, ktorý je spojený s regulačným ventilom, je v styku s pružinou pre odpruženie ihly regulačného ventilu· Z valca vyčnievajúca časť piestnej tyče je opatřená nastavovacími maticami a na válec je připojený rozvádzač pre posúvanie dvojčinného piestu*The above-mentioned drawbacks are eliminated by a device for depressurizing the hydraulic power set at idle running from a double-acting piston cylinder, adjusting nuts and a spreader according to the invention, characterized in that the piston rod of the double-acting piston is in contact with the spring for the suspension of the control valve needle.
- JL·- JL ·
224 936224 936
Výhody zariadenia podTa vynálezu sú v tom, že keď v hydraulickom obvode stroja nie je v činnosti žiadny hydraulický prvok tlak oleja v obvode poklesne na predom nastavená hodnotu a tým sa podstatné zníži zahrievanie hydraulického oleja, zvýši sa spolahlivost a životnost ovládacích hydraulických prvkov, životnost čerpadla a hnacieho elektromotore hydraulického agre·* gátu.Advantages of the device according to the invention are that when no hydraulic element is operating in the machine hydraulic circuit, the oil pressure in the circuit drops to a predetermined value and thus substantially reduces the heating of the hydraulic oil, increases the reliability and durability of the hydraulic controls, pump life and a hydraulic agglomerate drive motor.
Příklad prevedenia zariadenia podl’a vynálezu je schematicky znázorněný na priloženom výkrese· £ spojeného s regulačným je umiestnený dvojčinný je v styku s pružinou 2 ,An example of an embodiment of the device according to the invention is shown schematically in the attached drawing connected to the regulator, it is placed double-acting in contact with the spring 2,
Zariadenie pozostáva z valca ventilom 1 , pričom vo válci £ piest 5. » ktorého piestna tyč 8 ktorou je odpružená ihla 2 regulačného ventilu 1· Z valca 4.The device consists of a cylinder with a valve 1, wherein in the cylinder 6 a piston 5, whose piston rod 8, which is a spring-loaded needle 2 of the control valve 1, of the cylinder 4.
vyčnievajúca část piestnej tyče 8 je opatřená nastavovacími maticami £ · Na válec £ je připojený rozvádzač χ pre presúvanie dvojčinného piestu 2·the protruding part of the piston rod 8 is provided with adjusting nuts 8; a distributor 8 is connected to the cylinder 8 for moving the double-acting piston 2;
Piestna tyč 2 dvojčinného piestu 2 Působí na pružinu 2, ktorá reguluje odpor ihly i proti prietoku oleja a tým aj tlak v hydraulickom obvode· Presúvanie dvojčinného piestu χ j® ovládané rozvádzačom X·Piston rod 2 of double-acting piston 2 Acts on spring 2, which regulates the resistance of the needle even to the oil flow and thus the pressure in the hydraulic circuit.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS417782A CS224936B1 (en) | 1982-06-07 | 1982-06-07 | The device for the decrease of the pressure of hydraulic aggregates at the iddle running |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS417782A CS224936B1 (en) | 1982-06-07 | 1982-06-07 | The device for the decrease of the pressure of hydraulic aggregates at the iddle running |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS224936B1 true CS224936B1 (en) | 1984-02-13 |
Family
ID=5383921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS417782A CS224936B1 (en) | 1982-06-07 | 1982-06-07 | The device for the decrease of the pressure of hydraulic aggregates at the iddle running |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS224936B1 (en) |
-
1982
- 1982-06-07 CS CS417782A patent/CS224936B1/en unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5458096A (en) | Hydraulically operated electronic engine temperature control valve | |
| DE69805360T2 (en) | Hydraulic clamping device with clamping force limiting spring | |
| CA2013711C (en) | A method and an arrangement for controlling a rock drilling apparatus | |
| US4570849A (en) | Fan drive, particularly for cooling installation of vehicles | |
| DE3347002C1 (en) | Temperature controller insert for the cooling circuit of liquid-cooled internal combustion engines | |
| DE19529277A1 (en) | Method for operating a hydraulically controlled / regulated camshaft adjusting device for internal combustion engines | |
| CS224936B1 (en) | The device for the decrease of the pressure of hydraulic aggregates at the iddle running | |
| DE1803528A1 (en) | Control device for hydraulic systems of vehicles, especially amphibious vehicles | |
| US3973472A (en) | Throttle control mechanism for an engine | |
| GB1581793A (en) | Damping control device | |
| US5467745A (en) | System for determining the appropriate state of a flow control valve and controlling its state | |
| EP0054896A1 (en) | Water pump for an internal-combustion engine | |
| DE3420519C2 (en) | ||
| US4024711A (en) | Throttle control mechanism for an engine | |
| DE19631804B4 (en) | Hydraulic lifting device | |
| US4588357A (en) | Hydraulic throttle control | |
| JPS59206618A (en) | Regulator for number of revolution for injection pump in internal combustion engine | |
| DE1120212B (en) | Lubricating oil circuit for internal combustion engines | |
| US5463986A (en) | Hydraulically operated restrictor/shutoff flow control valve | |
| US2938718A (en) | Hydraulic cushion for the die pad of a ram type press | |
| DE3642458C1 (en) | Regulating device of a fuel injection pump | |
| DE102005050063A1 (en) | Pressure control unit | |
| DE69921916T2 (en) | Flow control for an oil nozzle | |
| DE60216717T2 (en) | Electrically driven actuator for hydraulic pump | |
| RU2055221C1 (en) | Drive of internal combustion engine cooling system fan |