CN105673587A - Hydraulic transformer adopting combined port plate - Google Patents
Hydraulic transformer adopting combined port plate Download PDFInfo
- Publication number
- CN105673587A CN105673587A CN201610176828.1A CN201610176828A CN105673587A CN 105673587 A CN105673587 A CN 105673587A CN 201610176828 A CN201610176828 A CN 201610176828A CN 105673587 A CN105673587 A CN 105673587A
- Authority
- CN
- China
- Prior art keywords
- inner disc
- outer disk
- plunger
- tooth
- oilhole
- 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
Classifications
-
- 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
Abstract
A hydraulic transformer adopting a combined port plate belongs to the technical field of hydraulic parts, and is characterized in that an outside plate provided with two internal teeth sheathes a boss of an inside plate provided with an external tooth; the right end face of the outside plate is attached to the left end face of an inside plate bottom plate; a first internal tooth and a second internal tooth of the outside plate and the external tooth of the inside plate are located in an annular groove to divide the annular groove into a first arc-shaped groove, a second arc-shaped groove and a third arc-shaped groove; a high-pressure oil source communicates with a plunger hole through a first oil passage of a rear shell, a first oil hole of the inside plate and the first arc-shaped groove; an actuating mechanism communicates with the plunger hole through a second oil passage of the rear shell, a second oil hole of the inside plate and the second arc-shaped groove; a low-pressure oil source communicates with the plunger hole through a third oil passage of the rear shell, a third oil hole of the inside plate and the third arc-shaped groove; the outside plate is driven to rotate through a spline by a swing motor rotor; and the inside plate is connected with the rear shell through a hinge pin. The hydraulic transformer has the advantages that the structure of the port plate is simple, the transformer ratio is relatively high, vibration and noise can be effectively reduced, and servo control is easy to realize.
Description
Technical field
The invention belongs to hydraulic part technical field, be specifically related to adopt the hydraulic transformer of combination type valve plate.
Background technology
Constant pressure network Secondary Regulation Technology is the important power-saving technology in current hydraulic drive field, and the technology of its core parts--hydraulic transformer is immature, constrains Secondary Regulation Technology and promotes. Hydraulic transformer has been studied by domestic and international multinomial patent and paper, and " current situation of hydraulic transformer " summarizes three crucial problem that hydraulic transformer faces: " control problem ", " vibration and noise ", " interface problem of valve plate and rear end cap ". " vibration and noise " problem is, in hydraulic transformer cylinder body rotary course, plunger case from a kidney slot forward another kidney slot to time, owing to generation is expanded or compression by the fluid in plunger cavity, cause pressure to increase sharply, air pocket and noise; Opening Silencing groove between kidney slot and can not solve noise problem very well, InnasBV company introduces " shuttle " technical scheme, obtains certain effect in reducing pressure peak and noise. (2) problem of rear end cap " valve plate with " to result in the transformation ratio scope of hydraulic transformer less, discharge capacity, moment of torsion and efficiency characteristic are also poor; Researcheres have employed multiple Optimal improvements measure, but transformation ratio scope still can not practical requirement.
The combination type valve plate that the patent of invention of application number 201610102962.7 proposes to adopt inner disc, outer disk and floating disc to constitute replaces existing one chip valve plate, improves the transformation ratio of hydraulic transformer, reduces the pressure in plunger cavity and increases sharply. But, owing to this combination port plate structure is complex, manufacture difficulty of processing relatively big, rub more serious, the working life of valve plate can be affected.
Summary of the invention
It is an object of the present invention to provide the hydraulic transformer adopting combination type valve plate, can efficiently against problems of the prior art. the object of the present invention is achieved like this, as shown in Fig. 1～Fig. 6, it includes procapsid 1, back casing 11, drive end bearing bracket 17, rotating shaft 3, plunger 5, plunger case 6, rotary actuator rotor 8, drive end bearing bracket 17 is arranged on the end of procapsid 1 by spring flange 16, procapsid 1 is linked together by bolt group 9 with back casing 11, rotating shaft 3 is arranged in the center cavity of procapsid 1 leading portion by clutch shaft bearing 2 and the second bearing 4, plunger case 6 is connected with the ball-and-socket on rotating shaft 3 rear end face by the bulb of n plunger 5, plunger case 6 and n plunger 5 define n plunger cavity 7, n is positive integer, rotating shaft 3 and plunger case 6, both axis intersect with sharp angle α in approximately the same plane, present invention is characterized in that
It is shaped with outer disk first, second internal tooth 14.1, 14.2 outer disk 14 be sleeved on the outside of inner disc boss 13.2 of the inner disc 13 being shaped with inner disc external tooth 13.1, the right side of outer disk 14 and the laminating of inner disc base plate 13.3 left side, outer disk 14, fitting with the concave spherical surface of plunger case 6 right-hand member respectively in the left side of inner disc boss 13.2, inner disc 13 is arranged in the center cavity of back casing 11 left end, is connected with back casing 11 by alignment pin 10, and rotary actuator rotor 8 is coupled with outer disk 14 by spline J, is shaped with first, second external tooth 8.1, the rotary actuator rotor 8 of 8.2 is arranged on procapsid 1 and is shaped with first, second internal tooth 11.1, 11.2 back casing 11 end face between, rotary actuator rotor first, second external tooth 8.1, 8.2 and back casing first, second internal tooth 11.1, 11.2 be positioned at annular chamber Q1, annular chamber Q1 is divided into rotary actuator first, second, 3rd, 4th working chamber A1, B1, C1, D1, respectively with rotary actuator first, second, 3rd, 4th hydraulic fluid port a1, b1, c1, d1 connects,
As shown in Figure 2, in said structure, outer disk first, second internal tooth 14.1,14.2 and inner disc external tooth 13.1 coexist in annular groove 27, annular groove 27 is divided into first, second, third arcuate groove 18,19,20, the first oil duct 21 in back casing 11 is connected with plunger cavity 7 by first oilhole the 24, first arcuate groove 18, the second oil duct 22 in back casing 11 is connected with plunger cavity 7 by second oilhole the 25, second arcuate groove 19, and the 3rd oil duct 12 in back casing 11 is connected with plunger cavity 7 by the 3rd oilhole the 26, the 3rd arcuate groove 20;
As shown in Figure 5, first, second, third oilhole 24,25,26 of inner disc 13 and inner disc external tooth 13.1 are positioned at annular groove 27, inner disc external tooth 13.1 and low pressure oilhole 26 lay respectively at extreme higher position and the extreme lower position of annular groove 27, first oilhole 24 is against the side of inner disc external tooth 13.1, and the second oilhole 25 is against the opposite side of inner disc external tooth 13.1;
As shown in Figure 4 and Figure 5, the angle of outer disk the first internal tooth 14.1 and outer disk the second internal tooth 14.2 is β, β=150 °～210 °, outer disk first, second internal tooth 14.1, 14.2 crest top land be 3～8um with the fit clearance of the periphery of inner disc 13 respectively, the fit clearance of the inner headed face of the crest top land of inner disc external tooth 13.1 and outer disk 14 is 3～8um, the anchor ring at the oilhole place of the rear end face of annular groove 27 and plunger case 6 is just right, outer disk first, second internal tooth 14.1, 14.2, the inner disc external tooth 13.1 width at 1/2 tooth depth place is 1～2 times of the oilhole diameter of plunger case 6 rear end face, the axis co-planar of the straight line at central point place of inner disc external tooth 13.1 and the 3rd oilhole 26 and the axis of rotating shaft 3 and plunger case 6, the angle of the diameter at outer disk the first internal tooth 14.1 P1 place, extreme higher position in annular groove 27 and the diameter at inner disc external tooth 13.1 place be on stop angles θ 1, the angle value of θ 1 ranges for 10 °～40 °, the angle of the diameter at outer disk the first internal tooth 14.1 extreme lower position P2 place in annular groove 27 and the diameter at inner disc external tooth 13.1 place is lower stop angles θ 2, the angle value of θ 2 ranges for 10 °～40 °,
Advantage of the present invention and having the benefit effect that
(1) the combination type valve plate scheme consisted of outer disk and inner disc, the port plate structure of hydraulic transformer is relatively simple, and rubbing surface and leakage face are less, it is possible to reduces friction and leakage, extends valve plate working life.
(2) size of arcuate groove, load arcuate groove and low pressure arcuate groove can regulate in a big way, and the transformation ratio scope of hydraulic transformer is improved.
(3) in high pressure arcuate groove, load arcuate groove and low pressure arcuate groove, the interval of any two arcuate groove is only the width of an external tooth or internal tooth, gap length between adjacent arcuate groove significantly reduces, avoid plunger cavity to occur that pressure increases sharply when moving between two arcuate grooves, significantly reduce noise and cavitation erosion.
(4) outer disk is driven by independent rotary actuator, it is easy to accomplish SERVO CONTROL, it is achieved the high response characteristic of hydraulic transformer.
Accompanying drawing explanation
Fig. 1 is the structural profile schematic diagram of hydraulic transformer.
Fig. 2 is the A A sectional view of Fig. 1.
Fig. 3 (b) is the sectional view of back casing.
Fig. 3 (a) is the left view of Fig. 3 (b).
Fig. 3 (c) is the right view of Fig. 3 (b).
Fig. 3 (d) is the B B sectional view of Fig. 3 (c).
Fig. 4 (b) is the front view of outer disk.
The left view of Fig. 4 (b) that Fig. 4 (a) is.
Fig. 5 (b) is the front view of inner disc.
The left view of Fig. 5 (b) that Fig. 5 (a) is.
Fig. 6 is outer disk hunting range schematic diagram.
In figure: 1-procapsid, 2-clutch shaft bearing, 3-rotating shaft, 4-the second bearing, 5-plunger, 6-plunger case, 7-plunger cavity, 8-rotary actuator rotor, 8.1-rotary actuator rotor the first external tooth, 8.2-rotary actuator rotor the second external tooth, 9-bolt group, 9 '-screw, 10-alignment pin, 11-back casing, 11.1-back casing the first internal tooth, 12-the 3rd oil duct, 13-inner disc, 13.1-inner disc external tooth, 13.2-inner disc boss, 13.3-inner disc base plate, 14-outer disk, 14.1-outer disk the first internal tooth, 14.2-outer disk the second internal tooth, 15-spacer, 16-check ring, 17-drive end bearing bracket, 18-the first arcuate groove, 19-the second arcuate groove, 20-the 3rd arcuate groove, 21-the first oil duct, 22-the second oil duct, 23-positions hole, 24-the first oilhole, 25-the second oilhole, 26-the 3rd oilhole, 27-annular groove, first working chamber of A1-rotary actuator, second working chamber of B1-rotary actuator, 3rd working chamber of C1-rotary actuator, 4th working chamber of D1-rotary actuator, first hydraulic fluid port of a1-rotary actuator, second hydraulic fluid port of b1-rotary actuator, 3rd hydraulic fluid port of c1-rotary actuator, 4th hydraulic fluid port of d1-rotary actuator, the extreme higher position of P1-outer disk internal tooth, the extreme lower position of P2-outer disk internal tooth, J-spline, Q1-annular chamber, stop angles on θ 1-, stop angles under θ 2-, the angle of-two outer disk internal tooths of β.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail.
As it is shown in figure 1, hydraulic transformer is a kind of inclined shaft type hydraulic transformer, drive end bearing bracket 17, procapsid 1, back casing 11 constitute the closing cavity volume of inclined shaft type hydraulic transformer; Drive end bearing bracket 17 does not open hole, and rotating shaft 3 is closing the inside of cavity volume, improves the sealing closing chamber; Rotating shaft 3 is arranged in the center cavity of procapsid 1 by clutch shaft bearing 2 and the second bearing 4, angle α=20 ° of the axis of the axis of rotating shaft 3 and plunger case 6, in the process that rotating shaft 3 and plunger case 6 rotate simultaneously, there is stretching motion in plunger 5, plunger cavity carries out oil suction and oil extraction in plunger cavity 7;
As shown in Fig. 1,2,6, inner disc 13, outer disk 14 have collectively constituted valve plate, replace the one chip valve plate in existing hydraulic transformer, angle β=180 ° of outer disk the first internal tooth 14.1 and outer disk the second internal tooth 14.2;
As shown in Figure 1, it is shaped with the rotary actuator rotor 8 of two external tooths, procapsid 1 and back casing 11 have collectively constituted a twayblade rotary actuator, the active force symmetrically formula of housing is distributed by twayblade motor, external high pressure oil sources and low pressure oil sources pass through the first of rotary actuator, second, third and fourth hydraulic fluid port a1, b1, c1, d1 is to the first of rotary actuator, second, third and fourth working chamber A1, B1, C1, D1 fuel feeding and oil extraction, rotary actuator rotor 8 drives outer disk 14 to realize swinging by spline J, the pendulum angle of rotary actuator rotor 8 is equal to the pendulum angle of outer disk 14, upper stop angles θ 1=30 ° of outer disk, lower stop angles θ 2=30 ° of outer disk,
Outer disk 14 is sleeved on the outside of inner disc boss 13.2, fits in the left side of the right side of outer disk 14 and inner disc base plate 13.3; The fit clearance of the inner headed face of the crest top land of inner disc external tooth 13.1 and outer disk 14 is 4um, the fit clearance of the crest top land of outer disk first, second internal tooth 14.1,14.2 and the periphery of inner disc boss 13.2 is 4um, realize lubrication, leaking only small, annular groove 27 is split for first, second, third arcuate groove 18,19,20 by outer disk first, second internal tooth 14.1,14.2 and inner disc external tooth 13.1;
Inner disc 13 is connected with back casing 11 by alignment pin 10, inner disc 13 cannot rotate relative to back casing 11, the right side of inner disc 13 pushes outer disk 14 under pressure oil effect, the concave spherical surface of the convex spherical of the left end of combination type valve plate and plunger case 6 rear end is fitted, hydrostatic support means of press seals district is formed between binding face, realize lubrication, leak only small;
Dead zone location in the extreme higher position of annular groove 27 residing for inner disc external tooth 13.1 and plunger case 6 rotary course, reduces the pressure in plunger cavity 7 and increases sharply;
First oilhole 24 and the second oilhole 25 lay respectively at the both sides of inner disc external tooth 13.1, and the 3rd oilhole 26 is positioned at the extreme lower position of annular groove 27, and the pendulum angle scope of inner disc 13 and outer disk 14 is maximum;
1.5 times of outer disk first, second internal tooth 14.1,14.2 and oilhole diameter that the inner disc external tooth 13.1 width at 1/2 tooth depth place is plunger case 6 rear end face, avoid in work process and realize connection by the oilhole of plunger case 6 rear end face between adjacent arcuate groove, it is prevented that in plunger cavity 7, pressure increases sharply;
The anchor ring at the oilhole place of the rear end face of annular groove 27 and plunger case 6 is just right, and both internal diameters are all identical with external diameter, makes whole oil circuit avoid the occurrence of bigger part throttle loss;
As shown in figures 1 and 3, open first oil duct the 21, second oil duct 22 in back casing 11 and the 3rd oil duct 12 has been connected with external high pressure oil sources, actuator and low pressure oil sources respectively, so high pressure fuel source will connect with one or more plunger cavities 7 through first oil duct the 21, first oilhole the 24, first arcuate groove 18, load oil sources will connect with one or more plunger cavities 7 through second oil duct the 22, second oilhole the 25, second arcuate groove 19, and low pressure oil sources will connect with one or more plunger cavities 7 through the 3rd oil duct the 12, the 3rd oilhole the 26, the 3rd arcuate groove 20;
Outer disk 14 rotates relative to inner disc 13, makes the area of first, second, third arcuate groove 18,19,20 change, and the number of the plunger cavity 7 of three arcuate groove connections changes, and the pressure ratio in the first arcuate groove 18 and the second arcuate groove 19 changes;
Rotary actuator rotor 8 drives outer disk 14 to rotate, and improves the response speed of hydraulic transformer output pressure and output flow.
Claims (2)
1. adopt the hydraulic transformer of combination type valve plate, it includes procapsid (1), back casing (11), drive end bearing bracket (17), rotating shaft (3), plunger (5), plunger case (6), rotary actuator rotor (8), drive end bearing bracket (17) is arranged on the end of procapsid (1) by spring flange (16), procapsid (1) and back casing (11) are linked together by bolt group (9), rotating shaft (3) is arranged in the center cavity of procapsid (1) leading portion by clutch shaft bearing (2) and the second bearing (4), plunger case (6) is connected with the ball-and-socket on rotating shaft (3) rear end face by the bulb of n plunger (5), plunger case (6) and n plunger (5) define n plunger cavity (7), n is positive integer, rotating shaft (3) and plunger case (6), both axis intersect with sharp angle α in approximately the same plane, present invention is characterized in that
It is shaped with outer disk first, second internal tooth (14.1, 14.2) outer disk (14) be sleeved on the outside of inner disc boss (13.2) of the inner disc (13) being shaped with inner disc external tooth (13.1), the right side of outer disk (14) and the laminating of inner disc base plate (13.3) left side, fit with the concave spherical surface of plunger case (6) right-hand member respectively in the left side of outer disk (14) and inner disc boss (13.2), inner disc (13) is arranged in the center cavity of back casing (11) left end, it is connected with back casing (11) by alignment pin (10), rotary actuator rotor (8) is coupled with outer disk (14) by spline J, is shaped with first, second external tooth (8.1, 8.2) rotary actuator rotor (8) is arranged on procapsid (1) and is shaped with first, second internal tooth (11.1, 11.2) back casing (11) end face between, rotary actuator rotor first, second external tooth (8.1, 8.2) and back casing first, second internal tooth (11.1, 11.2) it is positioned at annular chamber (Q1), annular chamber (Q1) is divided into rotary actuator first, second, 3rd, 4th working chamber (A1, B1, C1, D1), respectively with rotary actuator first, second, 3rd, 4th hydraulic fluid port (a1, b1, c1, d1) connection,
Outer disk the first internal tooth (14.1), second internal tooth (14.2) and inner disc external tooth (13.1) coexist in annular groove (27), and annular groove (27) is divided into first, second, 3rd arcuate groove (18, 19, 20), the first oil duct (21) in back casing (11) is by the first oilhole (24), first arcuate groove (18) connects with plunger cavity (7), and the second oil duct (22) in back casing (11) is by the second oilhole (25), second arcuate groove (19) connects with plunger cavity (7), and the 3rd oil duct (12) in back casing (11) is by the 3rd oilhole (26), 3rd arcuate groove (20) connects with plunger cavity (7), and first, second, 3rd oilhole (24, 25, 26) and inner disc external tooth (13.1) be positioned at annular groove (27), inner disc external tooth (13.1) and low pressure oilhole (26) lay respectively at extreme higher position and the extreme lower position of annular groove (27), first oilhole (24) against the side of inner disc external tooth (13.1), the second oilhole (25) opposite side against inner disc external tooth (13.1).
2. the hydraulic transformer adopting combination type valve plate as claimed in claim 1, it is characterized in that: the angle β of outer disk the first internal tooth (14.1) and the second internal tooth (14.2), β=150 °～210 °, outer disk first, second internal tooth (14.1, 14.2) crest top land fit clearance with the periphery of inner disc boss (13.2) respectively be 3～8um, the fit clearance of the inner headed face of the crest top land of inner disc external tooth (13.1) and outer disk (14) is 3～8um, annular groove (27) is just right with the anchor ring at the oilhole place of the rear end face of plunger case (6), outer disk the first internal tooth (14.1), second internal tooth (14.2), the inner disc external tooth (13.1) width at 1/2 tooth depth place is 1～2 times of the oilhole diameter of plunger case (6) rear end face, the axis co-planar of the straight line at central point place of inner disc external tooth (13.1) and the 3rd oilhole (26) and the axis of rotating shaft (3) and plunger case (6), the angle of the diameter at the outer disk the first internal tooth (14.1) extreme higher position (P1) place in annular groove (27) and the diameter at inner disc external tooth (13.1) place is upper stop angles θ 1, the angle value of upper stop angles θ 1 ranges for 10 °～40 °, the angle of the diameter at the outer disk the first internal tooth (14.1) extreme lower position (P2) place in annular groove (27) and the diameter at inner disc external tooth (13.1) place is lower stop angles θ 2, the angle value of θ 2 ranges for 10 °～40 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610176828.1A CN105673587B (en) | 2016-03-24 | 2016-03-24 | Using the hydraulic transformer of combined type valve plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610176828.1A CN105673587B (en) | 2016-03-24 | 2016-03-24 | Using the hydraulic transformer of combined type valve plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105673587A true CN105673587A (en) | 2016-06-15 |
| CN105673587B CN105673587B (en) | 2017-08-15 |
Family
ID=56224055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610176828.1A Active CN105673587B (en) | 2016-03-24 | 2016-03-24 | Using the hydraulic transformer of combined type valve plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105673587B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930995A (en) * | 2017-05-09 | 2017-07-07 | 太原科技大学 | A kind of compression apparatus for adjusting force of plunger hydraulic element |
| CN107013522A (en) * | 2017-05-09 | 2017-08-04 | 太原科技大学 | The compression apparatus for adjusting force of Port Plate Pair |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1187531A (en) * | 1998-01-19 | 1998-07-15 | 张少清 | Mini-equipment for fermenting and making beer |
| WO1999051881A1 (en) * | 1998-04-07 | 1999-10-14 | Noax B.V. | Adjustable face plate for hydraulic pump or motor |
| US6116138A (en) * | 1996-02-23 | 2000-09-12 | Innas Free Piston B.V. | Pressure transformer |
| DE10037114A1 (en) * | 2000-01-25 | 2001-07-26 | Mannesmann Rexroth Ag | Hydraulic transformer; has displacers in rotor supported by stroke element with controllers for hydraulic fluid connected to displacer chambers, where first controller and stroke element are connected |
| DE10025248A1 (en) * | 2000-05-22 | 2001-11-29 | Mannesmann Rexroth Ag | Hydraulic transformer has at least those channels leading to supply and working connections of housing opening at periphery of control part in approximately radial direction |
| NL1016046C2 (en) * | 2000-08-29 | 2002-03-01 | Innas Free Piston Bv | Hydraulic pressure transformer converts first oil flow with first pressure into second oil flow with second pressure by feeding or withdrawing oil with low pressure |
| CN101435417A (en) * | 2008-12-12 | 2009-05-20 | 北京理工大学 | Hydraulic transformer for increasing voltage ratio regulation scope |
| CN101614226A (en) * | 2009-07-14 | 2009-12-30 | 刘顺安 | Internal opening hydraulic transformer and voltage-transforming method |
| CN101424282B (en) * | 2008-11-05 | 2011-05-18 | 北京理工大学 | Inclined shaft type hydraulic transformer and voltage transformation method |
| CN101634316B (en) * | 2009-06-09 | 2012-02-29 | 东华大学 | Hydraulic transformer with safety device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1187531C (en) * | 2003-06-02 | 2005-02-02 | 浙江大学 | Hydraulic transformer |
-
2016
- 2016-03-24 CN CN201610176828.1A patent/CN105673587B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6116138A (en) * | 1996-02-23 | 2000-09-12 | Innas Free Piston B.V. | Pressure transformer |
| CN1187531A (en) * | 1998-01-19 | 1998-07-15 | 张少清 | Mini-equipment for fermenting and making beer |
| WO1999051881A1 (en) * | 1998-04-07 | 1999-10-14 | Noax B.V. | Adjustable face plate for hydraulic pump or motor |
| DE10037114A1 (en) * | 2000-01-25 | 2001-07-26 | Mannesmann Rexroth Ag | Hydraulic transformer; has displacers in rotor supported by stroke element with controllers for hydraulic fluid connected to displacer chambers, where first controller and stroke element are connected |
| DE10025248A1 (en) * | 2000-05-22 | 2001-11-29 | Mannesmann Rexroth Ag | Hydraulic transformer has at least those channels leading to supply and working connections of housing opening at periphery of control part in approximately radial direction |
| NL1016046C2 (en) * | 2000-08-29 | 2002-03-01 | Innas Free Piston Bv | Hydraulic pressure transformer converts first oil flow with first pressure into second oil flow with second pressure by feeding or withdrawing oil with low pressure |
| CN101424282B (en) * | 2008-11-05 | 2011-05-18 | 北京理工大学 | Inclined shaft type hydraulic transformer and voltage transformation method |
| CN101435417A (en) * | 2008-12-12 | 2009-05-20 | 北京理工大学 | Hydraulic transformer for increasing voltage ratio regulation scope |
| CN101634316B (en) * | 2009-06-09 | 2012-02-29 | 东华大学 | Hydraulic transformer with safety device |
| CN101614226A (en) * | 2009-07-14 | 2009-12-30 | 刘顺安 | Internal opening hydraulic transformer and voltage-transforming method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930995A (en) * | 2017-05-09 | 2017-07-07 | 太原科技大学 | A kind of compression apparatus for adjusting force of plunger hydraulic element |
| CN107013522A (en) * | 2017-05-09 | 2017-08-04 | 太原科技大学 | The compression apparatus for adjusting force of Port Plate Pair |
| CN106930995B (en) * | 2017-05-09 | 2018-09-25 | 太原科技大学 | A kind of compression apparatus for adjusting force of plunger hydraulic element |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105673587B (en) | 2017-08-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9206690B2 (en) | Variable displacement pump | |
| JP6182821B2 (en) | Variable displacement vane pump | |
| CN209781143U (en) | Axial plunger pump | |
| CN107781291B (en) | A kind of pump of balanced radial force combination floating buss | |
| CN105673587A (en) | Hydraulic transformer adopting combined port plate | |
| CN104204409B (en) | With shell, moveable stator and in stator rotatable rotor vane pump | |
| US4187064A (en) | Rotary machine | |
| CN103047171B (en) | The global function throttling arrangement that floats | |
| CN113446215A (en) | Vortex disc assembly and vortex compressor | |
| CN103591022A (en) | Slipper-type radial flexible compensation mechanism of rolling piston-like fluid machine | |
| JP5178612B2 (en) | Screw compressor | |
| CN105650042B (en) | Using the hydraulic transformer and its hydraulic circuit of combined type valve plate | |
| CN205715002U (en) | The hydraulic transformer that a kind of inner disc rotates | |
| WO2004051088A1 (en) | Swash-plate variable volume chamber-type fluid machine | |
| CN211370537U (en) | Air release valve structure of double-flow-passage turbocharger and double-flow-passage turbocharger | |
| WO2021088474A1 (en) | Sliding vane, pump body assembly, compressor and air conditioner | |
| US4215624A (en) | Axial piston hydraulic pumps or motors with improved valving | |
| CN209195697U (en) | High performance low noise water pressure vane pump | |
| CN210715103U (en) | Surface contact leakage-proof swing type sliding block mechanism | |
| CN208236589U (en) | A kind of convex dribbling plug emulsion pump of valve type fluid-distributing axial | |
| CN105570206B (en) | A kind of hydraulic transformer with combined type valve plate | |
| CN105626601B (en) | Hydraulic transformer and its hydraulic circuit with combined type valve plate | |
| JPH01224490A (en) | Gas compressor | |
| CN217481489U (en) | Pump body subassembly, compressor and air conditioner | |
| KR200373965Y1 (en) | Hydraulic piston pump and motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191216 Address after: 233000 Yannan Road, Bengbu High-tech Zone, Anhui Province (1st Floor, 1st Floor, Terminal Science Park, High-tech Zone) Patentee after: Bengbu Anzhi Intellectual Property Operations Co., Ltd. Address before: 030024 Taiyuan City, Shanxi Province Wan Road, No. 66, No. Patentee before: Taiyuan Univ. of Science & Technology |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200814 Address after: 215500 No.13, Caotang Road, Changshu, Suzhou, Jiangsu Province Patentee after: Changshu intellectual property operation center Co.,Ltd. Address before: 233000 Yannan Road, Bengbu High-tech Zone, Anhui Province (1st Floor, 1st Floor, Terminal Science Park, High-tech Zone) Patentee before: Bengbu Anzhi Intellectual Property Operations Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 215500 5th floor, building 4, 68 Lianfeng Road, Changfu street, Changshu City, Suzhou City, Jiangsu Province Patentee after: Changshu intellectual property operation center Co.,Ltd. Address before: No.13 caodang Road, Changshu City, Suzhou City, Jiangsu Province Patentee before: Changshu intellectual property operation center Co.,Ltd. |