CN108644162B - A kind of compact hydraulic booster - Google Patents
A kind of compact hydraulic booster Download PDFInfo
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- CN108644162B CN108644162B CN201810479402.2A CN201810479402A CN108644162B CN 108644162 B CN108644162 B CN 108644162B CN 201810479402 A CN201810479402 A CN 201810479402A CN 108644162 B CN108644162 B CN 108644162B
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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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- Fluid Mechanics (AREA)
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- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
The present invention relates to a kind of compact hydraulic boosters, it is characterized by comprising valve casings, left cylinder body with left plunger cavity and the right cylinder body with right plunger chamber, with axial passage and piston in T shape, big valve core and small valve core, the diameter of big valve core is greater than the diameter of valve port, left plunger and right plunger, left plunger be set to left cylinder body in and can left and right slide, the left end of the axial passage of the inner end and piston of left plunger connects and can slide with piston or so, and the right end of the axial passage of the inner end and piston of right plunger is connected and can be slid with piston or so.This hydraulic intensifier has integrated level height, volume compact.And because of the second outlet end of the first through flow hole when being connected to oil back chamber and left piston chamber, all there are a certain distance in piston left and right ends with the bottom surface of corresponding cylinder body, this guarantees can piston and two end cap collision before complete liquid controlled reversing valve module commutation, therefore without hit vibration, noise it is small.
Description
Technical field
The invention belongs to a kind of hydraulic intensifiers, and in particular to a kind of compact hydraulic booster.
Background technique
Hydraulic intensifier is different using piston both ends active area and the identical principle of stress size, and hydraulic pressure is put
Low pressure can be increased to 200MPa or more by a kind of big ultrahigh-pressure hydraulic element, hydraulic intensifier.Hydraulic intensifier
Three kinds of single-acting one-stroke booster, single-action reciprocating booster and Double-action reciprocating formula booster can be divided into.Single-acting
For one-stroke booster due to that can only move to a direction, by travel limit, output flow is limited, can not reach continuous increasing
Pressure, the scope of application are narrow.Single-action reciprocating booster may be implemented continuously to be pressurized, but can only one way pressurization, oil sources utilize
Rate only has half, and output flow is also limited.Two-way continuous pressurization may be implemented, no in Double-effect reciprocating hydraulic pressure booster
By travel limit, output flow is big, is ideal pressurizing elements.But traditional Double-action reciprocating formula that the country uses at present
Hydraulic intensifier is the continuous commutation by solenoid directional control valve, and control pressurized cylinder moves back and forth continuous output high pressure, and structure is complicated,
Volume and weight is huge, it has not been convenient to carry, be difficult to use in terms of inflammable and explosive occasion and portable mechanism.
The Chinese invention patent of Publication No. CN101666339A proposes a kind of hydraulic intensifier, is changed using stroke control
The scheme continuously moved to valve and main reversing valve control pressurized cylinder, the program are controlled compared with domestic traditional using solenoid directional control valve
The double-acting supercharger of commutation has innovation, but there is also following disadvantages:
(1) since its return of stroke valve is maintained at two positions using steel ball positioning and chain, pressurized cylinder is controlled to difference
Direction movement, structure is complicated, difficulty of processing is big.And steel ball positioning is easy to fail, chain is pulled off, and stroke controls reversal valve will
In floating position, i.e. pressurized cylinder stop motion, therefore this control mode is unreliable；
(2) after its piston moves to the end in one direction, piston can generate shock with the end cap of respective direction, continue
The continuous noise for hitting generation of piston and end cap is very big in high frequency motion, and produces adverse effect to service life.
In conclusion existing hydraulic intensifier can be further improved.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of liquid of structure novel for above-mentioned state of the art
Pressure booster has the advantages that the automatic reciprocating pressurization of low noise, energy high-frequency and volume compact.
The technical scheme of the invention to solve the technical problem is: a kind of compact hydraulic booster, feature
It is: including the valve casing with axial channel, the oil inlet and oil return opening being connected to axial channel, valve casing is provided on valve housing side wall
Inner hole wall in the middle part of there is first annular interior omoplate, oil inlet and oil return opening are located at the left and right sides of first annular interior omoplate；Tool
There are the left cylinder body of left plunger cavity and the right cylinder body with right plunger chamber, is connected to the left and right ends of valve casing axial channel, it is left
Left oil inlet runner and left high pressure oil port are provided with cylinder, being equipped in left oil inlet runner only allows oil inlet oil liquid to enter left plunger cavity
Left in line check valve, the left oil outlet one-way valve for only oil liquid being allowed to be discharged from left plunger cavity, right cylinder body are equipped in left high pressure oil port
On be provided with right oil inlet runner and right high pressure oil port, the right side for only allowing oil inlet oil liquid to enter right plunger chamber is equipped in right oil inlet runner
In line check valve, right high pressure oil port is interior to be equipped with the right oil outlet one-way valve for only oil liquid being allowed to be discharged from right plunger chamber；The left oil inlet
Runner is connected by the first fuel feed hole being located on valve casing with oil inlet, the right oil inlet runner by be located on valve casing
Two fuel feed holes are connected with oil inlet；With axial passage and piston in T shape, be set in valve casing and can left and right sliding, live
The thin axle portion of plug and the internal perisporium of first annular interior omoplate seal and cooperate, the inner hole wall of big the axle portion periphery and right piston chamber of piston
Between be equipped with the first sealing ring, between the left side of the big axle portion of piston and first annular interior omoplate formed left piston chamber, piston
The right side of big axle portion forms right piston chamber, and the left side of the thin axle portion of piston forms oil back chamber, and oil inlet is connected to left piston chamber, is returned
Hydraulic fluid port is connected to oil back chamber, and the axial channel internal perisporium of piston is equipped with omoplate in the second annular, and omoplate surrounds in the second annular
Valve port is provided with the first through flow hole, the second through flow hole and third through flow hole in the thin axle portion of piston, and the first through flow hole is to be connected to
Axial passage and left piston chamber in second ring on the right side of omoplate, the second through flow hole is to the axis that is connected in the second annular on the left of omoplate
To channel and oil back chamber, the input end of third through flow hole is located in valve port, and there are three the outlet ends of third through flow hole, one of them
To be connected to first exit end with right piston chamber always, another is selection second going out whether be connected to oil back chamber or left piston chamber
Mouth end, third are the third outlet end being connected to always with the axial passage of omoplate left end in the second annular；Big valve core and small valve
Core, the diameter of big valve core are greater than the diameter of valve port, and big valve core is located in the second annular on the left of omoplate and sets between axial passage
There is the second sealing ring, whether the left and right sliding of big valve core can determine to open the left port of valve port, small valve core is in T shape, small valve core
Enlarged head be located in the second annular on the right side of omoplate, the thin axle portion of small valve core is threadedly coupled after passing through valve port with big valve core, small valve
Whether the left and right sliding of the enlarged head of core can determine to open the right output port of valve port；Left plunger and right plunger, left plunger are set to left cylinder
In body and can left and right sliding, cooperate between the periphery and left cylinder body inner hole of Zuo Zhusai for interstitial fluid sealing, thus in left cylinder body
Left plunger cavity is formed, the left end of the axial passage of the inner end and piston of Zuo Zhusai connects and can slide with piston or so；Right plunger
In right cylinder body and can left and right sliding, between the periphery and right cylinder body inner hole of right plunger for interstitial fluid sealing cooperate, thus
Right plunger chamber is formed in right cylinder body, the right end connection of the axial passage of the inner end and piston of right plunger simultaneously can be sliding with piston or so
It moves.
Preferably, in the state that piston is moved to left to the second outlet end of third through flow hole and is connected to oil back chamber, it is described
The left side of piston and the bottom surface of left cylinder body have spacing, move to right in piston to the second outlet end of third through flow hole and left piston
In the state of chamber connection, there are certain distance in the right side of the piston and the bottom surface of right cylinder body.Because of third through flow hole therein one
A outlet end when being connected to oil back chamber and left piston chamber, piston left and right ends all have with corresponding cylinder body bottom surface it is certain away from
From this guarantees the commutations that can complete big valve core or small valve core before piston and the collision of left cylinder body or right cylinder body, therefore nothing is hit
It is small to hit vibration, noise.
Compared with the prior art, the advantages of the present invention are as follows: changed by piston displacement, passes through big valve core on piston
The second outlet end of third through flow hole selects or is connected to the return port or be connected to pressure oil port, recycling big valve core with it is small
The difference in areas of spool, to complete the commutation of big valve core and small valve core, and then control right piston chamber or with pressure oil port or with
Oil return opening leads to complete bilateral reciprocation.Therefore this hydraulic intensifier has integrated level height, volume compact.And because first is logical
The second outlet end of discharge orifice when being connected to oil back chamber and left piston chamber, piston left and right ends all with the bottom surface of corresponding cylinder body
There is a certain distance, this guarantees changing for big valve core or small valve core can be completed before piston and left cylinder body or the collision of right cylinder body
To, therefore it is small without shock vibration, noise.
The reciprocating motion control of piston is completed by big valve core and small valve core, and the diameter of big valve core is greater than the straight of valve port
Diameter, the thin axle portion of small valve core are threadedly coupled after passing through valve port with big valve core, and the left and right sliding of the enlarged head of small valve core can determine to open
Whether opening the right output port of valve port, whether the left and right sliding of big valve core can determine to open the left port of valve port；When small valve core opens valve
When the right output port of mouth, oil liquid can enter right piston chamber, the oil of right piston chamber after oil inlet, the first through flow hole, third through flow hole
Liquid acts on the annulus area formed by piston and right plunger that (this annulus area is greater than the annular that is formed of convex shoulder part of piston
Area), therefore piston moves downward under difference in areas, when piston move to from right to left the second outlet end of third through flow hole with
Oil back chamber communicates, and communicates at the left end of big valve core with oil return opening, and small valve core moves downward the right output port of close port, and big valve core is beaten
The left port of valve opening mouth, such right piston chamber after the left port of valve port and the second through flow hole with oil back chamber by communicating, Jin Erliu
To oil return opening, such piston starts to move right, when piston moves right second outlet end and the left piston of third through flow hole
When chamber communicates, big valve core and small valve core move right together under the action of difference in areas, and big valve core is re-closing off the left end of valve port
Mouthful, small valve core reopens the right output port of valve port, and such piston starts to move downward, and forms circulation.In the left plunger of piston driving
In moving downward, right in line check valve is opened, and oil liquid enters right plunger chamber, while through left fuel-displaced after the oil liquid pressurization of left plunger cavity
Check valve discharge；Piston moves right similar.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
As shown in Figure 1, being a preferred embodiment of the present invention.
A kind of compact hydraulic booster, including
Valve casing 5 with axial channel is provided with the oil inlet P and oil return inlet T being connected to axial channel on 5 side wall of valve casing,
There is first annular interior omoplate 51, oil inlet P and oil return inlet T are located at first annular interior omoplate 51 in the middle part of the inner hole wall of valve casing 2
The left and right sides；
Left cylinder body 2 with left plunger cavity 10a and the right cylinder body 8 with right plunger chamber 10b are connected to 5 axis of valve casing
To the left and right ends in duct, it is provided with left oil inlet runner 21 and left high pressure oil port H1 on left cylinder body 2, is equipped with only in left oil inlet runner 21
Allow oil inlet oil liquid to enter the left in line check valve 7a of left plunger cavity 10a, be equipped in left high pressure oil port H1 only allow oil liquid from
The left oil outlet one-way valve 6a of left plunger cavity 10a discharge, is provided with right oil inlet runner 81 and right high pressure oil port H2 on right cylinder body 8, it is right into
In the interior right in line check valve 7b for being equipped with only permission oil inlet oil liquid and entering right plunger chamber 10b in oil stream road 81, right high pressure oil port H2
Equipped with the right oil outlet one-way valve 6b for only oil liquid being allowed to be discharged from right plunger chamber 10b；
With axial passage and piston 1 in T shape, be set in valve casing 5 and can left and right sliding, the thin axle portion of piston 1 and
The internal perisporium of first annular interior omoplate 51 seals cooperation, and first is equipped between the big axle portion periphery of piston 1 and the inner hole wall of valve casing 5
Sealing ring 9a forms left piston chamber 52, the big axis of piston 1 between the left side of the big axle portion of piston 1 and first annular interior omoplate 51
The right side in portion forms right piston chamber 54, and the left side of the thin axle portion of piston 1 forms oil back chamber 53, and oil inlet P and left piston chamber 52 connect
Logical, oil return inlet T is connected to oil back chamber 53, and the axial channel internal perisporium of piston 1 is equipped with omoplate 14 in the second annular, the second annular
Interior omoplate 14 surrounds valve port 15, and the first through flow hole 11, the second through flow hole 12 and third through flow hole are provided in the thin axle portion of piston 1
13, axial passage and left piston chamber 52 of first through flow hole 11 to be connected to 14 right side of omoplate in the second annular, the second through flow hole
12 axial passage and oil back chamber 53 to be connected to 14 left side of omoplate in the second annular, the input end of third through flow hole 13 are located at valve
In mouth 15, there are three the outlet ends of third through flow hole 13, one of them is to be connected to first exit end with right piston chamber 54 always
131, another is second outlet end 132 of selection whether be connected to oil back chamber 53 or left piston chamber 52, third is a be always with
The third outlet end 133 of the axial passage connection of 14 left end of omoplate in second annular；
The diameter D1 of big valve core 4b and small valve core 4a, big valve core 4b are greater than the diameter D2 of valve port 15, and big valve core 4b is located at the
The second sealing ring 9b is equipped in second ring on the left of omoplate 14 and between axial passage, the left and right sliding of big valve core 4b can determine to open
Whether opening the left port of valve port 15, small valve core 4a is in T shape, and it is right that the enlarged head of small valve core 4a is located at omoplate 14 in the second annular
Side, the thin axle portion of small valve core 4a are threadedly coupled after passing through valve port 15 with big valve core 4b, the left and right sliding of the enlarged head of small valve core 4a
Whether capable of determining to open the right output port of valve port 15；
Left plunger 3a and right plunger 3b, Zuo Zhusai 3a be set to left cylinder body 2 in and can left and right sliding, the periphery of Zuo Zhusai 3a and
It is interstitial fluid sealing cooperation between 2 inner hole of left cylinder body, to form left plunger cavity 10a, the inner end of Zuo Zhusai 3a in left cylinder body 2
It connect and can be slid with piston 1 or so with the left end of the axial passage of piston 1；Right plunger 3b is set in right cylinder body 8 and can left and right
It slides, is interstitial fluid sealing cooperation between 8 inner hole of periphery and right cylinder body of right plunger 3b, to form right column in right cylinder body 8
Chamber 10b is filled in, the inner end of right plunger 3b connect with the right end of the axial passage of piston 1 and can slide with piston 1 or so.
In the state that piston 1 is moved to left to the second outlet end 132 of third through flow hole 13 and is connected to oil back chamber 53, the work
The left side of plug 1 and the bottom surface of left cylinder body 2 have spacing, piston 1 move to right second outlet end 132 to third through flow hole 13 with
In the state that left piston chamber 52 is connected to, there are certain distance in the right side of the piston 1 and the bottom surface of right cylinder body 8.
The operation principle and process of this compact hydraulic booster is as follows:
In use, oil inlet P is connected with hydraulic oil high pressure oil port, oil return inlet T and hydraulic oil tank are connected directly, left high pressure
Hydraulic fluid port H1, which with right high pressure oil port H2 connected exterior line and connects together, is output to executive component.
The reciprocating motion control of piston 1 is completed by big valve core 4b and small valve core 4a, and the diameter D1 of big valve core 4b is big
In the diameter D2 of valve port 15, the thin axle portion of small valve core 4a is threadedly coupled after passing through valve port 15 with big valve core 4b, and small valve core 4a's is big
Whether the left and right sliding on head can determine to open the right output port of valve port 15, the left and right sliding of big valve core 4a can determine to open valve port 15
Left port whether.
When small valve core 4a opens the right output port of valve port 15, as described in Figure 1, oil liquid can be through oil inlet P, the first through flow hole
11, enter right piston chamber 54 after third through flow hole 13, the oil liquid of right piston chamber 54, which is acted on, to be formed by piston 1 and right plunger 3b
On annulus area (this annulus area is greater than the annulus area that the convex shoulder part of piston 1 is formed), piston 1 is transported to the left under difference in areas
It is dynamic, when the second outlet end 132 that piston 1 moves to third through flow hole 13 from right to left is communicated with oil back chamber 53, big valve core 4b's
Left end chamber is communicated by the second outlet end 132 of third through flow hole 13 with oil return inlet T, and small valve core 4a moves downward close port
15 right output port, big valve core 4b open the left port of valve port 15, and such right piston chamber 54 passes through the left port and second of valve port 15
It is communicated after through flow hole 12 with oil back chamber 53, and then flows to oil return inlet T, such piston 1 starts to move right, when piston 1 is transported to the right
When moving the second outlet end 132 of third through flow hole 13 and communicating with left piston chamber 52, big valve core 4b and small valve core 4a are in difference in areas
Under the action of (D1 be greater than D2) move right together, big valve core 4b is re-closing off the left port of valve port 15, and small valve core 4a is opened again
The right output port of valve port 15 is opened, such piston 1 starts to move downward, and forms circulation.
It being driven during left plunger 3a moves downward in piston 1, right in line check valve 7b is opened, and oil liquid enters right plunger chamber 10b,
The pressurized oil liquid of left plunger cavity 10a is discharged through left oil outlet one-way valve 6a simultaneously；Piston moves right similar.
Claims (2)
1. a kind of compact hydraulic booster, it is characterised in that: including
Valve casing (5) with axial channel is provided with the oil inlet (P) and oil return opening being connected to axial channel on valve casing (5) side wall
(T), there is first annular interior omoplate (51) in the middle part of the inner hole wall of valve casing (5), oil inlet (P) and oil return opening (T) are located at the first ring
The left and right sides of omoplate (51) in shape；
Left cylinder body (2) with left plunger cavity (10a) and the right cylinder body (8) with right plunger chamber (10b), are connected to valve casing
(5) left and right ends of axial channel are provided with left oil inlet runner (21) and left high pressure oil port (H1), left oil inlet stream on left cylinder body (2)
The left in line check valve (7a) for allowing oil inlet oil liquid to enter left plunger cavity (10a), left high pressure oil port are equipped with only in road (21)
(H1) being equipped in only allows the left oil outlet one-way valve (6a) that be discharged from left plunger cavity (10a) of oil liquid, be provided on right cylinder body (8) right side into
Oil stream road (81) and right high pressure oil port (H2), interior be equipped with of right oil inlet runner (81) only allow oil inlet oil liquid to enter right plunger chamber
The right in line check valve (7b) of (10b), interior be equipped with of right high pressure oil port (H2) only allow oil liquid from the right side that right plunger chamber (10b) is discharged
Oil outlet one-way valve (6b)；The left oil inlet runner (21) passes through the first fuel feed hole (5a) for being located on valve casing (5) and oil inlet (P)
It is connected, the right oil inlet runner (81) is connected by the second fuel feed hole (5b) being located on valve casing (5) with oil inlet (P)；
With axial passage and piston (1) in T shape, be set in valve casing (5) and can left and right slide, the thin axle portion of piston (1)
It seals and cooperates with the internal perisporium of first annular interior omoplate (51), between the big axle portion periphery of piston (1) and the inner hole wall of valve casing (5)
Equipped with the first sealing ring (9a), left piston chamber is formed between the left side of the big axle portion of piston (1) and first annular interior omoplate (51)
(52), the right side of the big axle portion of piston (1) forms right piston chamber (54), and the left side of the thin axle portion of piston (1) forms oil back chamber
(53), oil inlet (P) is connected to left piston chamber (52), and oil return opening (T) is connected to oil back chamber (53), the axial channel of piston (1)
Internal perisporium is equipped with omoplate (14) in the second annular, and omoplate (14) surrounds valve port (15) in the second annular, the thin axle portion of piston (1)
On be provided with the first through flow hole (11), the second through flow hole (12) and third through flow hole (13), the first through flow hole (11) is to be connected to
Axial passage and left piston chamber (52) in second ring on the right side of omoplate (14), the second through flow hole (12) is to be connected in the second annular
Axial passage and oil back chamber (53) on the left of omoplate (14), the input end of third through flow hole (13) are located in valve port (15), third
There are three the outlet ends of through flow hole (13), one of them is another to be connected to first exit end (131) with right piston chamber (54) always
A second outlet end (132) whether be connected to for selection with oil back chamber (53) or left piston chamber (52), it is always with that third is a
The third outlet end (133) of the axial passage connection of omoplate (14) left end in second ring；
Big valve core (4b) and small valve core (4a), the diameter (D1) of big valve core (4b) are greater than the diameter (D2) of valve port (15), big valve core
(4b) is located in the second annular on the left of omoplate (14) and is equipped with the second sealing ring (9b) between axial passage, big valve core (4b)
Whether left and right sliding can determine to open the left port of valve port (15), small valve core (4a) is in T shape, the major part position of small valve core (4a)
On the right side of omoplate (14) in the second annular, the thin axle portion of small valve core (4a) passes through valve port (15) and connects afterwards with big valve core (4b) screw thread
It connects, whether the left and right sliding of the enlarged head of small valve core (4a) can determine to open the right output port of valve port (15)；
Left plunger (3a) and right plunger (3b), Zuo Zhusai (3a) be set to left cylinder body (2) in and can left and right slide, Zuo Zhusai's (3a)
It is interstitial fluid sealing cooperation between periphery and left cylinder body (2) inner hole, so that left plunger cavity (10a) is formed in left cylinder body (2), it is left
The inner end of plunger (3a) connect with the left end of the axial passage of piston (1) and can slide with piston (1) left and right；Right plunger (3b) is set
In the right cylinder body (8) and can left and right sliding, be that interstitial fluid seals and matches between the periphery and right cylinder body (8) inner hole of right plunger (3b)
It closes, so that right plunger chamber (10b) is formed in right cylinder body (8), the right side of the axial passage of the inner end and piston (1) of right plunger (3b)
End connection can simultaneously slide with piston (1) left and right.
2. compact hydraulic booster according to claim 1, it is characterised in that: moved to left in piston (1) through-flow to third
In the state that the second outlet end (132) in hole (13) is connected to oil back chamber (53), the left side of the piston (1) and left cylinder body
(2) bottom surface has spacing, moves to right in piston (1) to the second outlet end (132) of third through flow hole (13) and left piston chamber
(52) in the state of being connected to, there are certain distance in the right side of the piston (1) and the bottom surface of right cylinder body (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810479402.2A CN108644162B (en) | 2018-05-18 | 2018-05-18 | A kind of compact hydraulic booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810479402.2A CN108644162B (en) | 2018-05-18 | 2018-05-18 | A kind of compact hydraulic booster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108644162A CN108644162A (en) | 2018-10-12 |
| CN108644162B true CN108644162B (en) | 2019-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810479402.2A Active CN108644162B (en) | 2018-05-18 | 2018-05-18 | A kind of compact hydraulic booster |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611305B (en) * | 2018-12-01 | 2020-02-21 | 东营盛昶石油机械有限公司 | Booster water pump |
| CN111075708A (en) * | 2019-12-26 | 2020-04-28 | 宁波真格液压科技有限公司 | High-pressure water pump |
| CN111120241A (en) * | 2019-12-30 | 2020-05-08 | 邵延荣 | Reciprocating booster pump |
| CN111502946A (en) * | 2020-04-22 | 2020-08-07 | 邵延荣 | Plunger type underground supercharger |
| CN112128152B (en) * | 2020-10-15 | 2022-10-21 | 郑州磨料磨具磨削研究所有限公司 | Ultrahigh-pressure low-speed boosting reciprocating supercharger |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19633258C1 (en) * | 1996-08-17 | 1997-08-28 | Iversen Hydraulics Aps | Pressure-booster particularly for hydraulic fluid |
| JP2000087906A (en) * | 1998-09-17 | 2000-03-28 | Toko Tsusho Kk | Booster |
| JP2001059501A (en) * | 1999-08-23 | 2001-03-06 | Pascal Kk | Fluid pressure intensifying device |
| CN201339617Y (en) * | 2009-01-23 | 2009-11-04 | 张建国 | Booster oil cylinder |
| CN101666339B (en) * | 2009-09-30 | 2011-10-05 | 山东交通学院 | Hydraulic pressurizer |
| CN201531486U (en) * | 2009-11-21 | 2010-07-21 | 潘孝敏 | Hydraulic pressurized cylinder |
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2018
- 2018-05-18 CN CN201810479402.2A patent/CN108644162B/en active Active
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| CN108644162A (en) | 2018-10-12 |
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