CN108679009A - A kind of pressurized cylinder and control method that can change pressure ratio at double - Google Patents
A kind of pressurized cylinder and control method that can change pressure ratio at double Download PDFInfo
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- CN108679009A CN108679009A CN201810796682.XA CN201810796682A CN108679009A CN 108679009 A CN108679009 A CN 108679009A CN 201810796682 A CN201810796682 A CN 201810796682A CN 108679009 A CN108679009 A CN 108679009A
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- 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
- F15B3/00—Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids
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- 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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of pressurized cylinders and control method that can change pressure ratio at double, including a hydraulic cylinder, it is fixed with non-movable piston in hydraulic cylinder, plunger case is equipped between the non-movable piston and a hydraulic cylinder, the end of plunger case is stretched into secondary hydraulic cylinder, and the non-movable piston is internally provided with the first asphalt channel and the second asphalt channel；The first oil pocket is formed between plunger case, non-movable piston and a hydraulic cylinder；The second oil pocket and third oil pocket are formed between non-movable piston and plunger case；The 4th oil pocket of formation between hydraulic cylinder and plunger case；The 5th oil pocket is formed between secondary hydraulic cylinder and plunger case；First asphalt channel is connect with the second oil pocket, and the second asphalt channel is connect with third oil pocket, remaining oil pocket is equipped with oil circuit import.The present invention makes pressurized cylinder have seven kinds of pressure ratios, and can be by one to seven times of changes of basic pressure ratio, and when a pressure is constant, exportable seven kinds of secondary pressures are adaptable.
Description
Technical field
The invention belongs to hydraulic drive and control field more particularly to a kind of pressurized cylinder and controls that can change pressure ratio at double
Method processed.
Background technology
When a certain branch in hydraulic system needs the pressure oil that pressure is higher but flow is little, then according to high-pressure pump
It is uneconomical, or at all without the hydraulic pump of such high pressure when, boost-up circuit may be used；Or in energy regenerating, liquid
What pressure system was recovered to is the lower hydraulic oil of pressure ratio, which cannot be directly used in drive hydraulic system principle execute member
Part, it is necessary to pressure rise can be used to required pressure using boost-up circuit.And main element used in boost-up circuit is supercharging
Cylinder, principle are：After the low pressure oil of supply enters the big plunger shaft of pressurized cylinder, pressure oil generates thrust to big piston, pushes away
Power size is equal to the product of input pressure and big piston effective area, this thrust pushes valve piston to move, passes through by connecting rod
Valve piston pushes the fluid output of valve piston chamber, the chamber fluid also to generate reaction thrust to valve piston, do not considering friction
In the case of, big piston with it is equal in magnitude by fluid thrust on valve piston, i.e., big plunger shaft oil liquid pressure functions area
Product is equal with the product of its area with valve piston chamber oil liquid pressure.That is the ratio between pressure of size plunger shaft is lived for size
The inverse ratio of the area of plug, size piston area ratio is bigger, and valve piston chamber and big plunger shaft oil liquid pressure ratio are bigger, and here it is superchargings
Principle, the ratio between size piston area are pressure ratio.
It is different according to the structure of pressurized cylinder used in boost-up circuit, there are the boost-up circuit that pressurized cylinder is applied alone and double acting pressurized cylinder
Boost-up circuit.Single-acting pressurized cylinder refers to having high pressure oil output when piston is moved to side, and when return does not have high pressure oil output.
And double acting pressurized cylinder refers to reciprocating motion of the pistons, both ends just alternately export high pressure oil, it can be achieved that continuous supercharging.But both increase
Cylinder pressure pressure ratio is all changeless, so using relatively simple.
In the boost-up circuit of above-mentioned pressurized cylinder, if a pressure increases, also increased on year-on-year basis by secondary pressure after supercharging
Greatly, the secondary pressure secondary pressure relatively after supercharged but needed for system is relatively low, needs to throttle or could be used after depressurizing,
The loss that can cause energy in this way makes system heat generation, efficiency reduce；Or the secondary pressure needed increases, but a pressure does not have
Become, secondary pressure oil after supercharged cannot meet requirement of the system to secondary pressure.
Invention content
Goal of the invention：It is an object of the present invention to provide a kind of variable boost than pressurized cylinder and control method, can be according to primary
The change of pressure or requirement to secondary pressure change pressure ratio, make pressure ratio on the basis of basic pressure ratio, increase by basic
One times of pressure ratio, twice, three times, until seven times of variations, to adapt to the variation of pressure or require the difference of secondary pressure.
Technical solution：The present invention includes a hydraulic cylinder, is fixed with non-movable piston in described hydraulic cylinder, institute
Plunger case is equipped between the non-movable piston stated and a hydraulic cylinder, the section of the non-movable piston and plunger case is stepped,
The end of plunger case is stretched into secondary hydraulic cylinder, and the non-movable piston is internally provided with the first asphalt channel and the second oil circuit is logical
Road；The first oil pocket is formed between plunger case, non-movable piston and a hydraulic cylinder；Second is formed between non-movable piston and plunger case
Oil pocket and third oil pocket；The 4th oil pocket of formation between hydraulic cylinder and plunger case；Between secondary hydraulic cylinder and plunger case
Form the 5th oil pocket；First asphalt channel is connect with the second oil pocket, and the second asphalt channel is connect with third oil pocket, remaining
Oil pocket is equipped with oil circuit import.
First oil pocket connects a pressure oil inlet and fuel tank, fuel tank or a pressure oil by second solenoid valve
Import flows through second solenoid valve by the road and the first oil pocket import forms oil circuit.
Second oil pocket is connect by the first asphalt channel with the 4th solenoid valve, the 4th solenoid valve with it is primary
Pressure oil inlet and fuel tank connection, fuel tank or a pressure oil inlet flow through by the road the 4th solenoid valve, the first asphalt channel and
Second oil pocket forms oil circuit.
The third oil pocket is connect by the second asphalt channel with third solenoid valve, the third solenoid valve with it is primary
Pressure oil inlet and fuel tank connection, fuel tank or a pressure oil inlet flow through by the road third solenoid valve, the second asphalt channel and
Third oil pocket forms oil circuit.
4th oil pocket connects a pressure oil inlet and fuel tank, fuel tank or a pressure oil by the first solenoid valve
Import flows through the first solenoid valve by the road and the 4th oil pocket import forms oil circuit.
The side of 5th oil pocket connects fuel tank by the first check valve, and the other side is connected secondary by the second check valve
Pressure oil export.
A kind of pressurized cylinder control method that can change pressure ratio at double includes the following steps：
(1) effective area of third oil pocket hydraulic oil effect and the ratio between the effective area of the 5th oil pocket hydraulic oil effect are base
This pressure ratio；
The effective area of (2) second oil pocket hydraulic oil effect is twice that third oil pocket hydraulic oil acts on effective area；
The effective area of (3) first oil pocket hydraulic oil effect is four times that third oil pocket hydraulic oil acts on effective area；
There are many different groups for oil suction into a pressure oil or from fuel tank for (4) first oil pockets, the second oil pocket, third oil pocket
It closes, will produce different pressure ratios.
Advantageous effect：The present invention makes pressurized cylinder have seven kinds of pressure ratios, and can change by one to seven times of basic pressure ratio,
It adapts to the change of pressure or the difference of secondary pressure is required；When a pressure is constant, exportable seven kinds of secondary pressures
Power, it is adaptable.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Specific implementation mode
The invention will be further described below in conjunction with the accompanying drawings.
As shown in Figure 1, the present invention includes 1, hydraulic cylinder 2 of non-movable piston, plunger case 3, secondary hydraulic cylinder 4, oil
Case 5, the first check valve 6, the second check valve 7, the first solenoid valve 8, second solenoid valve 9, third solenoid valve 10, the 4th solenoid valve
11, the first oil pocket 12, the second oil pocket 13, third oil pocket 14, the 4th oil pocket 15, the 5th oil pocket 16, the first asphalt channel 17, second
18, pressure oil inlet P of asphalt channel1With secondary pressure oil export P2.It is fixed with non-movable piston 1 in hydraulic cylinder 2,
Non-movable piston 1 is internally provided with the first asphalt channel 17 and the second asphalt channel 18, and non-movable piston 1 and a hydraulic cylinder 2 are fixed
Together, fixed at work.Plunger case 3, non-movable piston 1 and column are equipped between non-movable piston 1 and a hydraulic cylinder 2
The section of plug cylinder 3 is stepped, and the end of plunger case 3 is stretched into secondary hydraulic cylinder 4.
The first oil pocket 12 is formed between plunger case 3, non-movable piston 1 and a hydraulic cylinder 2；Non-movable piston 1 and plunger case 3
Between form the second oil pocket 13 and third oil pocket 14；The 4th oil pocket 15 is formed between hydraulic cylinder 2 and plunger case 3；It is secondary
The 5th oil pocket 16 is formed between hydraulic cylinder 4 and plunger case 3；First asphalt channel 17 is connect with the second oil pocket 13, the second oil circuit
Channel 18 is connect with third oil pocket 14, remaining oil pocket is equipped with oil circuit import.
First oil pocket 12 connects a pressure oil inlet P by second solenoid valve 91And fuel tank, fuel tank or a pressure oil
Import P1Second solenoid valve 9 is flowed through by the road and 12 import of the first oil pocket forms oil circuit.Second oil pocket 13 is logical by the first oil circuit
Road 17 is connect with the 4th solenoid valve 11, the 4th solenoid valve 11 and a pressure oil inlet P1And fuel tank connection, fuel tank or primary pressure
Power oil inlet P1The 4th solenoid valve 11, the first asphalt channel 17 and the second oil pocket 13 are flowed through by the road forms oil circuit.Third oil pocket
14 are connect by the second asphalt channel 18 with third solenoid valve 10, third solenoid valve 10 and a pressure oil inlet P1And fuel tank connects
It connects, fuel tank or a pressure oil inlet P114 shape of third solenoid valve 10, the second asphalt channel 18 and third oil pocket is flowed through by the road
At oil circuit.4th oil pocket 15 connects a pressure oil inlet P by the first solenoid valve 81And fuel tank, fuel tank or a pressure oil into
Mouth P1The first solenoid valve 8 is flowed through by the road and 15 import of the 4th oil pocket forms oil circuit.The side of 5th oil pocket 16 is single by first
Fuel tank 5 is connected to valve 6, the other side connects secondary pressure oil export P by the second check valve 72。
A kind of pressurized cylinder control method that can change pressure ratio at double includes the following steps：
(1) the effective area S of third oil pocket hydraulic oil effect3With the effective area S of the 5th oil pocket hydraulic oil effect4The ratio between
For basic pressure ratio；
The effective area S of (2) second oil pocket hydraulic oil effect2Effective area S is acted on for third oil pocket hydraulic oil3Twice；
The effective area S of (3) first oil pocket hydraulic oil effect1Effective area S is acted on for third oil pocket hydraulic oil3Four times；
There are many different groups for oil suction into a pressure oil or from fuel tank for (4) first oil pockets, the second oil pocket, third oil pocket
It closes, will produce different pressure ratios.
In the present invention, oil suction has into a pressure oil or from fuel tank for the first oil pocket 12, the second oil pocket 13, third oil pocket 14
Seven kinds of different combinations will produce seven kinds of pressure ratios.
1, basic pressure ratio
If third solenoid valve 10 is powered, the first solenoid valve 8, second solenoid valve 9, the power-off of the 4th solenoid valve 11.Pressure
Oil is through a pressure oil inlet P1, oil pipe, third solenoid valve 10 14 phase of left valve position, the second asphalt channel 18 and third oil pocket
It is logical.14 oil inlet of third oil pocket pushes plunger case 3 to move to right, and 16 volume of the 5th oil pocket reduces, pressure rise, and fluid passes through oil pipe, the
Two check valves 7, secondary pressure oil export P2Discharge.First oil pocket 12 is by the right valve position of second solenoid valve 9 and oil pipe from fuel tank
Middle oil suction, the second oil pocket 13 is by right valve position and the oil pipe oil suction from fuel tank of the first asphalt channel 17, the 4th solenoid valve 11, and
Four oil pockets 15 are by the right valve position of the first solenoid valve 8 and oil pipe to fuel tank oil extraction.At this point, the ratio between secondary oil pressure and primary oil pressure are managed
It is equal to third oil pocket hydraulic oil effect effective area S by upper3With the 5th oil pocket hydraulic oil effect effective area S4The ratio between, at this time
Pressure ratio is basic pressure ratio.
2, two times of basic pressure ratios
If the 4th solenoid valve 11 is powered, the first solenoid valve 8, second solenoid valve 9, third solenoid valve 10 power off.Pressure
Oil is through a pressure oil inlet P1, oil pipe, 11 left valve position of the 4th solenoid valve, the first asphalt channel 17 and the second oil pocket 13 communicate.
Second oil pocket, 13 oil inlet pushes plunger case 3 to move to right, and 16 volume of the 5th oil pocket reduces, and pressure rise, fluid passes through oil pipe, second
Check valve 7, secondary pressure oil export P2Discharge.First oil pocket 12 is inhaled by 9 right valve position of second solenoid valve and oil pipe from fuel tank
Oil, third oil pocket 14 pass through the second asphalt channel 18,10 right valve position of third solenoid valve and oil pipe oil suction from fuel tank, the 4th oil pocket
15 by 8 right valve position of the first solenoid valve and oil pipe to fuel tank oil extraction.At this point, the ratio between secondary oil pressure and primary oil pressure are theoretically equal to
Second oil pocket hydraulic oil acts on effective area S2With the 5th oil pocket hydraulic oil effect effective area S4The ratio between, as basic pressure ratio
Twice.
3, the basic pressure ratio of three times
If third solenoid valve 10 and the 4th solenoid valve 11 are powered, the first solenoid valve 8, second solenoid valve 9 power off.Pressure
Oil is through a pressure oil inlet P1, oil pipe, 11 left valve position of the 4th solenoid valve, the first asphalt channel 17 and the second oil pocket 13 communicate；
Pressure oil is through a pressure oil inlet P1, oil pipe, 10 left valve position of third solenoid valve, the second asphalt channel 18 and third oil pocket
14 communicate；Second oil pocket 13 and all oil inlets of third oil pocket 14 push plunger case 3 to move to right, and 16 volume of the 5th oil pocket reduces, pressure liter
Height, fluid pass through oil pipe, the second check valve 7, secondary pressure oil export P2Discharge；First oil pocket 12 is right by second solenoid valve 9
The oil suction from fuel tank of valve position and oil pipe, the 4th oil pocket 15 is by 8 right valve position of the first solenoid valve and oil pipe to fuel tank oil extraction.At this point,
The ratio between secondary oil pressure and primary oil pressure are theoretically equal to the second oil pocket hydraulic oil effect effective area S2With third oil pocket hydraulic oil
Act on effective area S3And with the 5th oil pocket hydraulic oil effect effective area S4The ratio between.At this moment, pressure ratio is basic pressure ratio
Three times.
4, four times of basic pressure ratios
If second solenoid valve 9 is powered, the first solenoid valve 8, third solenoid valve 10, the power-off of the 4th solenoid valve 11.Pressure
Oil is through a pressure oil inlet P1, oil pipe, 9 left valve position of second solenoid valve and the first oil pocket 12 communicate.First oil pocket, 12 oil inlet, pushes away
Dynamic plunger case 3 moves to right, and 16 volume of the 5th oil pocket reduces, pressure rise, and fluid passes through oil pipe, the second check valve 7, secondary pressure oil
Export P2Discharge.Second oil pocket 13 by the first asphalt channel 17,11 right valve position of the 4th solenoid valve and oil pipe oil suction from fuel tank,
Third oil pocket 14 passes through the second asphalt channel 18,10 right valve position of third solenoid valve and oil pipe oil suction from fuel tank, the 4th oil pocket 15
By 8 right valve position of the first solenoid valve and oil pipe to fuel tank oil extraction.At this point, the ratio between secondary oil pressure and primary oil pressure theoretically equal to the
One oil pocket hydraulic oil acts on effective area S1With the 5th oil pocket hydraulic oil effect effective area S4The ratio between.At this moment, pressure ratio is base
Four times of this pressure ratio.
5, five times of basic pressure ratios
If second solenoid valve 9 and third solenoid valve 10 are powered, the first solenoid valve 8, the power-off of the 4th solenoid valve 11.Pressure
Oil is through a pressure oil inlet P1, oil pipe, 9 left valve position of second solenoid valve and the first oil pocket 12 communicate；Pressure oil is through primary
Pressure oil inlet P1, oil pipe, 10 left valve position of third solenoid valve, the second asphalt channel 18 and third oil pocket 14 communicate.First oil pocket
12 and all oil inlets of third oil pocket 14, push plunger case 3 to move to right, 16 volume of the 5th oil pocket reduces, and pressure rise, fluid passes through oil
Pipe, the second check valve 7, secondary pressure oil export P2Discharge.Second oil pocket 13 passes through the first asphalt channel 17, the 4th solenoid valve 11
The oil suction from fuel tank of right valve position and oil pipe, the 4th oil pocket 15 is by 8 right valve position of the first solenoid valve and oil pipe to fuel tank oil extraction.This
When, the ratio between secondary oil pressure and primary oil pressure are theoretically equal to the first oil pocket hydraulic oil effect effective area S1With third oil pocket hydraulic pressure
Oil effect effective area S3And with the 5th oil pocket hydraulic oil effect effective area S5The ratio between.I.e. pressure ratio is basic pressure ratio
Five times.
6, six times of basic pressure ratios
If second solenoid valve 9 and the 4th solenoid valve 11 are powered, the first solenoid valve 8, third solenoid valve 10 power off.Pressure
Oil is through a pressure oil inlet P1, oil pipe, 9 left valve position of second solenoid valve and the first oil pocket 12 communicate；Pressure oil is through primary
Pressure oil inlet P1, oil pipe, 11 left valve position of the 4th solenoid valve, the first asphalt channel 17 and the second oil pocket 13 communicate；First oil pocket
12 and the second all oil inlet of oil pocket 13, push plunger case 3 to move to right, 16 volume of the 5th oil pocket reduces, and pressure rise, fluid passes through oil
Pipe, the second check valve 7, secondary pressure oil export P2Discharge.Third oil pocket 14 passes through the second asphalt channel 18, third solenoid valve 10
The oil suction from fuel tank of right valve position and oil pipe, the 4th oil pocket 15 is by 8 right valve position of the first solenoid valve and oil pipe to fuel tank oil extraction.This
When, the ratio between secondary oil pressure and primary oil pressure are theoretically equal to the first oil pocket hydraulic oil effect effective area S1With the second oil pocket hydraulic pressure
Oil effect effective area S2And with the 5th oil pocket hydraulic oil effect effective area S5The ratio between.At this moment pressure ratio is basic supercharging
Six times of ratio.
7, seven times of basic pressure ratios
If second solenoid valve 9, third solenoid valve 10 and the 4th solenoid valve 11 are all powered, the power-off of the first solenoid valve 8.Primary pressure
Power oil is through a pressure oil inlet P1, oil pipe, 9 left valve position of second solenoid valve and the first oil pocket 12 communicate；Pressure oil is through one
Secondary pressure oil inlet P1, oil pipe, 11 left valve position of the 4th solenoid valve, the first asphalt channel 17 and the second oil pocket 13 communicate；Primary pressure
Power oil is through a pressure oil inlet P1, oil pipe, 10 left valve position of third solenoid valve, 14 phase of the second asphalt channel 18 and third oil pocket
It is logical；First oil pocket 12, the second oil pocket 13 and all oil inlets of third oil pocket 14 push plunger case 3 to move to right, and 16 volume of the 5th oil pocket subtracts
Small, pressure rise, fluid passes through oil pipe, the second check valve 7, secondary pressure oil export P2Discharge.4th oil pocket 15 passes through first
8 right valve position of solenoid valve and oil pipe are to fuel tank oil extraction.At this point, the ratio between secondary oil pressure and primary oil pressure are theoretically equal to the first oil pocket liquid
Pressure oil acts on effective area S1, the second oil pocket hydraulic oil effect effective area S2, third oil pocket hydraulic oil effect effective area S3Three
The sum of person and the 5th oil pocket hydraulic oil effect effective area S4The ratio between.At this moment, pressure ratio is seven times of basic pressure ratio.
When plunger case returns, the first solenoid valve 8 is powered, second solenoid valve 9, third solenoid valve 10, the 4th solenoid valve 11
All power off.Pressure oil is through a pressure oil inlet P1, oil pipe, 8 left valve position of the first solenoid valve and the 4th oil pocket 15 communicate,
Four oil pocket oil inlets push plunger case 3 to move to left；First oil pocket 12 is connected by oil pipe, 9 right position of second solenoid valve with fuel tank, oil extraction；
Second oil pocket 13 is connected by the first asphalt channel 17, oil pipe, 11 right valve position of the 4th solenoid valve with fuel tank, oil extraction；Third oil pocket
14 are connected by the second asphalt channel 18, oil pipe, 10 right valve position of third solenoid valve with fuel tank, oil extraction；5th oil pocket 16 passes through oil
Pipe, the first check valve 6 and fuel tank 5 connect, oil suction, prepare for supercharging next time.
The above is only the special case embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, without departing from the principle of the present invention, the effective area S that the first oil pocket hydraulic oil can also be acted on1, second
The effective area S of oil pocket hydraulic oil effect2, third oil pocket hydraulic oil effect effective area S3, the area ratio of three makes difference
Change, different transformation ratio combinations can be obtained, these changes should also be regarded as the scope of the invention.
Claims (7)
1. a kind of pressurized cylinder that can change pressure ratio at double, which is characterized in that including a hydraulic cylinder (2), described is primary
It is fixed with non-movable piston (1) in hydraulic cylinder (2), plunger is equipped between the non-movable piston (1) and a hydraulic cylinder (2)
Cylinder (3), the non-movable piston (1) and the section of plunger case (3) are stepped, and secondary hydraulic cylinder is stretched into the end of plunger case (3)
In body (4), the non-movable piston (1) is internally provided with the first asphalt channel (17) and the second asphalt channel (18)；Plunger case
(3), the first oil pocket (12) is formed between non-movable piston (1) and a hydraulic cylinder (2)；Non-movable piston (1) and plunger case (3) it
Between form the second oil pocket (13) and third oil pocket (14)；The 4th oil pocket is formed between hydraulic cylinder (2) and plunger case (3)
(15)；The 5th oil pocket (16) is formed between secondary hydraulic cylinder (4) and plunger case (3)；First asphalt channel (17) with
Second oil pocket (13) connects, and the second asphalt channel (18) is connect with third oil pocket (14), remaining oil pocket is equipped with oil circuit import.
2. a kind of pressurized cylinder that can change pressure ratio at double according to claim 1, which is characterized in that first oil
Chamber (12) connects a pressure oil inlet and fuel tank by second solenoid valve (9).
3. a kind of pressurized cylinder that can change pressure ratio at double according to claim 1, which is characterized in that second oil
Chamber (13) is connect by the first asphalt channel (17) with the 4th solenoid valve (11), the 4th solenoid valve (11) and a pressure
Oil inlet and fuel tank connection.
4. a kind of pressurized cylinder that can change pressure ratio at double according to claim 1, which is characterized in that the third oil
Chamber (14) is connect by the second asphalt channel (18) with third solenoid valve (10), the third solenoid valve (10) and a pressure
Oil inlet and fuel tank connection.
5. a kind of pressurized cylinder that can change pressure ratio at double according to claim 1, which is characterized in that the 4th oil
Chamber (15) connects a pressure oil inlet and fuel tank by the first solenoid valve (8).
6. a kind of pressurized cylinder that can change pressure ratio at double according to claim 1, which is characterized in that the 5th oil pocket
(16) side connects fuel tank (5) by the first check valve (6), and the other side connects secondary pressure oil by the second check valve (7)
Outlet.
7. based on a kind of pressurized cylinder control method that can change pressure ratio at double of claim 1-6 any one of them, feature
It is, includes the following steps：
(1) the ratio between the effective area of third oil pocket hydraulic oil effect and the effective area of the 5th oil pocket hydraulic oil effect increase to be basic
Pressure ratio；
The effective area of (2) second oil pocket hydraulic oil effect is twice that third oil pocket hydraulic oil acts on effective area；
The effective area of (3) first oil pocket hydraulic oil effect is four times that third oil pocket hydraulic oil acts on effective area；
The different combination there are many oil suctions into a pressure oil or from fuel tank of (4) first oil pockets, the second oil pocket, third oil pocket,
It will produce different pressure ratios.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810796682.XA CN108679009B (en) | 2018-07-19 | 2018-07-19 | Pressure cylinder capable of changing pressure ratio in multiple and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810796682.XA CN108679009B (en) | 2018-07-19 | 2018-07-19 | Pressure cylinder capable of changing pressure ratio in multiple and control method |
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| CN108679009A true CN108679009A (en) | 2018-10-19 |
| CN108679009B CN108679009B (en) | 2019-12-31 |
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| CN2777258Y (en) * | 2005-02-02 | 2006-05-03 | 苏州大学 | Two direction two-stage air-liquid transmission type pressure booster |
| DE102011115011A1 (en) * | 2011-10-06 | 2013-04-11 | Robert Bosch Gmbh | Hydraulic multi-chamber cylinder unit has piston having active surfaces which are pressurized with respect to one another, where force is applied along extension direction of piston rod, by electromagnetic force of electric motor |
| CN103470550B (en) * | 2013-09-25 | 2014-09-10 | 山东科技大学 | Pressurizing device |
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Application publication date: 20181019 Assignee: JIANGSU HUAIHAI NEW ENERGY VEHICLE Co.,Ltd. Assignor: Jiangsu Normal University Contract record no.: X2021980008165 Denomination of invention: Supercharging cylinder capable of changing supercharging ratio exponentially and its control method Granted publication date: 20191231 License type: Exclusive License Record date: 20210823 |
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