CN108571479B - Single-plunger supercharger - Google Patents
Single-plunger supercharger Download PDFInfo
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- CN108571479B CN108571479B CN201810480279.6A CN201810480279A CN108571479B CN 108571479 B CN108571479 B CN 108571479B CN 201810480279 A CN201810480279 A CN 201810480279A CN 108571479 B CN108571479 B CN 108571479B
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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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Abstract
The invention provides a single-plunger supercharger, which is provided with a main oil inlet, a main oil return port and a high-pressure oil outlet and comprises: the high-pressure plunger, first check valve, second check valve, first overflow valve, second overflow valve and pilot valve. According to the single-plunger supercharger provided by the embodiment of the invention, high-frequency supercharging can be achieved.
Description
Technical Field
The invention relates to a supercharger, in particular to a single-plunger supercharger capable of reliably and automatically and continuously supercharging.
Background
The hydraulic pressure booster is an ultrahigh pressure hydraulic component which amplifies hydraulic pressure by utilizing the principle that the action areas of two ends of a piston are different and the stress sizes are the same, and the hydraulic pressure booster can increase low pressure to 200MPa or above. The hydraulic pressure booster can be divided into a single-acting single-stroke booster, a single-acting reciprocating booster and a double-acting reciprocating booster. The single-action single-stroke supercharger is limited by stroke because of the movement in one direction, the output flow is limited, the continuous supercharging can not be achieved, and the application range is narrow. The single-action reciprocating supercharger can realize continuous supercharging, but only can realize single-way supercharging, the utilization rate of an oil source is only half, and the output flow is limited. The double-acting reciprocating hydraulic pressure booster can realize bidirectional continuous boosting, is not limited by stroke, has large output flow and is an ideal boosting element. However, the traditional double-acting reciprocating hydraulic pressure booster adopted in China at present controls the reciprocating motion of a pressure boosting cylinder to continuously output high pressure through continuous reversing of an electromagnetic reversing valve, has a complex structure, is large in size and weight, is inconvenient to carry, and is difficult to adopt in the aspects of flammable and explosive occasions and portable machinery.
The Chinese invention patent with the publication number of CN101666339A provides a hydraulic pressure booster, which utilizes a stroke control reversing valve and a main reversing valve to control the continuous movement of a pressure cylinder, and compared with the traditional domestic double-acting pressure booster using an electromagnetic reversing valve to control the reversing, the proposal has the innovation points, but also has the following defects:
(1) because the stroke reversing valve is kept at two positions by utilizing the positioning of the steel ball and the chain, the booster cylinder is controlled to move towards different directions, the structure is complex, and the processing difficulty is high. And the positioning of the steel ball is easy to lose efficacy, the chain is broken, and the stroke control reversing valve is located at a floating position, namely the pressure cylinder stops moving, so the control mode is unreliable.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
To this end, it is an object of the present invention to provide a single-plunger supercharger capable of achieving high-frequency supercharging.
According to an embodiment of the present invention, a single plunger supercharger having a main oil inlet, a main oil return port, and a high pressure oil outlet includes: the hydraulic control valve comprises a main valve, a piston, a high-pressure plunger, a first check valve, a second check valve, a first overflow valve, a second overflow valve and a pilot valve, wherein the main valve is provided with a left main valve cavity, a right main valve cavity, a first oil inlet, a first working oil port, a second working oil port and a first oil return port, the first oil inlet is connected with the main oil inlet, the first working oil port is connected with the left piston cavity, the second working oil port is connected with the right piston cavity, a right high-pressure cylinder is connected with the main oil inlet through the first check valve and is connected with a high-pressure oil outlet through the second check valve, the first oil return port is connected with the main oil return port, the pilot valve is provided with a left pilot cavity, a right pilot cavity, a second oil inlet, a third working oil port, a fourth working oil port and a second oil return port, the second oil inlet is connected with the main oil inlet, the third working oil port is connected with the left main valve cavity, the fourth working oil port is connected with the right main valve cavity, the second oil return port is connected with the main oil return port, the first port of the first overflow valve is connected with the first working oil port, the second port of the first overflow valve is connected with the right guide cavity, the first port of the second overflow valve is connected with the second working oil port, the second port of the second overflow valve is connected with the left guide cavity, the right guide cavity is provided with a second damping hole connected with the main oil return port, and the left guide cavity is provided with a first damping hole connected with the main oil return port.
Advantageously, the pilot valve is switchable between an initial position where the second oil inlet is connected with the third working oil port and the fourth working oil port is connected with the second oil return port and a switching state where the second oil inlet is connected with the fourth working oil port and the third working oil port is connected with the second oil return port.
Advantageously, the main valve is switchable between an initial position where the first oil inlet is connected to the first working oil port and the second working oil port is connected to the first oil return port, and a switching state where the first oil inlet is connected to the second working oil port and the first working oil port is connected to the first oil return port.
Advantageously, when the pilot valve is in the initial position, the main valve is in the initial position; when the pilot valve is in the switching state, the main valve is in the switching state.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic view of a single plunger pressure intensifier in accordance with an embodiment of the present invention, with the piston in an initial position;
FIG. 2 is a schematic view of a single plunger pressure intensifier in accordance with another embodiment of the present invention, with the piston in the rightmost position;
FIG. 3 is a schematic view of a single-plunger pressure intensifier in accordance with yet another embodiment of the present invention, with the piston in the leftmost position.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
A single-plunger pressure booster according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 3, a single-plunger supercharger according to an embodiment of the present invention, having a main oil inlet P, a main oil return T, and a high-pressure oil outlet H, includes: the hydraulic control system comprises a main valve 8, a piston 6, a high-pressure plunger 5, an end cover 11, a first check valve 1, a second check valve 2, a first overflow valve 7a, a second overflow valve 7b and a pilot valve 9.
Specifically, the main valve 8 has a left main valve chamber 8B, a right main valve chamber 8a, a first oil inlet P1, a first working oil port a1, a second working oil port B1, and a first oil return port T1.
The first oil inlet P1 is connected to the primary oil inlet P.
The first working port a1 is connected to the left piston chamber 4 b.
The second working port B1 is connected to the right piston chamber 4 a.
The high-pressure cylinder 3 is connected with the main oil inlet P through the first one-way valve 1, and the high-pressure cylinder 3 is connected with the high-pressure oil outlet H through the second one-way valve 2.
The first oil return port T1 is connected to the main oil return port T.
The pilot valve 9 has a left pilot chamber 9B, a right pilot chamber 9a, a second oil inlet P2, a third working oil port a2, a fourth working oil port B2, and a second oil return port T2.
The second oil inlet P2 is connected with the main oil inlet P, the third working oil port A2 is connected with the left main valve cavity 8B, the fourth working oil port B2 is connected with the left main valve cavity 8a, and the second oil return port T2 is connected with the main oil return port T.
A first port of the first overflow valve 7a is connected with the first working oil port a1, a second port of the first overflow valve 7a is connected with the right pilot chamber 9a, and the right pilot chamber 9a is provided with a second damping hole 12a connected with the main oil return port T.
A first port of the second overflow valve 7B is connected with the second working oil port B1, a second port of the second overflow valve 7B is connected with the left pilot chamber 9B, and the left pilot chamber 9B is provided with a first damping hole 12B connected with the main oil return port T.
According to a specific example of the present invention, the pilot valve 9 is switchable between an initial position where the second oil inlet P2 is connected to the third working port a2 and the fourth working port B2 is connected to the second oil return port T2, and a switching state where the second oil inlet P2 is connected to the fourth working port B2 and the third working port a2 is connected to the second oil return port T2.
Advantageously, the main valve 8 is switchable between an initial position in which the first oil inlet P1 is connected to the first working port a1 and the second working port B1 is connected to the first oil return port T1, and a switching state in which the first oil inlet P1 is connected to the second working port B1 and the first working port a1 is connected to the first oil return port T1.
Further, when the pilot valve 9 is at the initial position, the main valve 8 is at the initial position; when the pilot valve 9 is in the switching state, the main valve 8 is in the switching state. In other words, the main valve 8 is in the initial position or the switching state in synchronization with the pilot valve 9.
The operation of a single-plunger supercharger according to an embodiment of the present invention will be briefly described as follows:
when the hydraulic pump is applied, the main oil inlet P can be connected with the outlet of a hydraulic pump, the main oil return port T is connected with an oil tank, and the high-pressure oil outlet H is connected with a working oil cylinder or other executing elements.
Assuming that the main valve 8 is at an initial position at the left end (i.e., the first oil inlet P1 is connected to the first working oil port a1, and the second working oil port B1 is connected to the first oil return port T1), oil enters the left piston cavity 4B from the main oil inlet P through the first oil inlet P1 and the first working oil port a1 to push the piston 6 to move rightward, oil in the right piston cavity 4a returns to the oil tank through the second working oil port B1, the first oil return port T1 and the main oil return port T, and oil in the booster cylinder 3 reaches the high-pressure oil outlet H through the second check valve 2 after being pressurized.
When the piston 6 moves to the right end limit position (as shown in fig. 2), the pressure at the first working oil port a1 will rapidly rise to the opening pressure of the first overflow valve 7a, after the first overflow valve 7a is opened, the oil at the first working oil port a1 enters the right pilot cavity 9a of the pilot valve 9, the pressure is built in the right pilot cavity 9a to push the pilot valve 9 to reverse, so that the pilot valve 9 is in the switching position (i.e., the second oil inlet P2 is connected to the fourth working oil port B2, and the third working oil port a2 is connected to the second oil return port T2), and the oil at the left pilot cavity 9B reaches the main oil return port T after passing through the first damping hole 12B. The pilot valve 9 controls the main valve 8 to shift positions (i.e. the first oil inlet P1 is connected with the second working oil port B1 and the first working oil port a1 is connected with the first oil return port T1). After the main valve 8 is switched, the hydraulic fluid at the outlet of the hydraulic pump enters the right piston cavity 4a through the oil inlet P, the first oil inlet P1 and the second working oil port B1, meanwhile, the hydraulic fluid at the oil inlet P enters the booster cylinder 3 through the first check valve 1 and acts on the high-pressure plunger 5 to push the piston 6 to move leftward, the hydraulic fluid in the left piston cavity 4B reaches the main oil return port T through the first working oil port a1 and the first oil return port T1, when the piston 6 moves leftward to the left end limit position, the pressure at the second working oil port B1 rapidly rises to the opening pressure of the second overflow valve 7B, the hydraulic fluid at the second working oil port B1 enters the left pilot cavity 9B of the pilot valve 9 after the second overflow valve 7B is opened to push the pilot valve 9 to be switched (i.e. the second oil inlet P2 is connected with the third working oil port 2 and the fourth working oil port B2 is connected with the second oil return port T2), the hydraulic fluid in the right pilot cavity 9a flows back to the main damping hole 12a, after the pilot valve 9 is switched, the main valve 8 is controlled by the pilot valve 9 to be switched, oil in the main oil inlet P enters the left piston cavity 4b through the first oil inlet P1 and the first working oil port A1 to push the piston 6 to move rightwards for pressurization, and thus circulation is completed.
As long as the main oil inlet P is continuously supplied with oil, the single-plunger supercharger according to the embodiment of the invention can reciprocate back and forth to supercharge.
The single-plunger supercharger according to the embodiment of the invention has the following beneficial effects:
the automatic reciprocating supercharging can be realized, the electric control is not needed, and the high-frequency supercharging can be realized.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although the embodiments of the present invention have been shown and described, it is understood that the embodiments are illustrative and not restrictive, and that those skilled in the art may make changes, modifications, substitutions and alterations to the embodiments without departing from the scope of the present invention.
Claims (4)
1. The utility model provides a single plunger booster, single plunger booster has main oil inlet, main oil return opening and high-pressure oil-out, its characterized in that includes: the hydraulic control valve comprises a main valve, a piston, a high-pressure plunger, a first check valve, a second check valve, a first overflow valve, a second overflow valve and a pilot valve, wherein the main valve is provided with a left main valve cavity, a right main valve cavity, a first oil inlet, a first working oil port, a second working oil port and a first oil return port, the first oil inlet is connected with the main oil inlet, the first working oil port is connected with the left piston cavity, the second working oil port is connected with the right piston cavity, a right high-pressure cylinder is connected with the main oil inlet through the first check valve and is connected with a high-pressure oil outlet through the second check valve, the first oil return port is connected with the main oil return port, the pilot valve is provided with a left pilot cavity, a right pilot cavity, a second oil inlet, a third working oil port, a fourth working oil port and a second oil return port, the second oil inlet is connected with the main oil inlet, the third working oil port is connected with the left main valve cavity, the fourth working oil port is connected with the right main valve cavity, the second oil return port is connected with the main oil return port, the first port of the first overflow valve is connected with the first working oil port, the second port of the first overflow valve is connected with the right guide cavity, the first port of the second overflow valve is connected with the second working oil port, the second port of the second overflow valve is connected with the left guide cavity, the right guide cavity is provided with a second damping hole connected with the main oil return port, and the left guide cavity is provided with a first damping hole connected with the main oil return port.
2. The single-plunger booster of claim 1, wherein the pilot valve is switchable between an initial position where the second oil inlet is connected to the third working oil port and the fourth working oil port is connected to the second oil return port, and a switching state where the second oil inlet is connected to the fourth working oil port and the third working oil port is connected to the second oil return port.
3. The single-plunger booster of claim 2, wherein the main valve is switchable between an initial position where the first oil inlet is connected to the first working oil port and the second working oil port is connected to the first oil return port, and a switching state where the first oil inlet is connected to the second working oil port and the first working oil port is connected to the first oil return port.
4. The single-plunger booster of claim 3 wherein when the pilot valve is in an initial position, the main valve is in an initial position; when the pilot valve is in the switching state, the main valve is in the switching state.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810480279.6A CN108571479B (en) | 2018-05-18 | 2018-05-18 | Single-plunger supercharger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810480279.6A CN108571479B (en) | 2018-05-18 | 2018-05-18 | Single-plunger supercharger |
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| CN108571479A CN108571479A (en) | 2018-09-25 |
| CN108571479B true CN108571479B (en) | 2020-02-18 |
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| CN201810480279.6A Active CN108571479B (en) | 2018-05-18 | 2018-05-18 | Single-plunger supercharger |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DK3722619T3 (en) * | 2019-04-11 | 2022-01-24 | Piston Power S R O | HYDRAULIC PRESSURE AMPLIFIER ARRANGEMENT |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287407A (en) * | 2011-09-19 | 2011-12-21 | 宁波汉商液压有限公司 | Double-action reciprocating hydraulic booster |
| CN105782147A (en) * | 2014-12-15 | 2016-07-20 | 西安众智惠泽光电科技有限公司 | Double-acting hydraulic control system of supercharging device |
| CN106523335A (en) * | 2016-08-25 | 2017-03-22 | 湖南莫尔顿智能勘探机器人有限公司 | Automatic reversing water pump |
| CN206338261U (en) * | 2016-11-17 | 2017-07-18 | 晏万文 | Ultrahigh-pressure hydraulic pressure charging system with fast discharging component |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10158182B4 (en) * | 2001-11-28 | 2005-06-02 | Minibooster Hydraulics A/S | Double-acting hydraulic pressure booster |
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2018
- 2018-05-18 CN CN201810480279.6A patent/CN108571479B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287407A (en) * | 2011-09-19 | 2011-12-21 | 宁波汉商液压有限公司 | Double-action reciprocating hydraulic booster |
| CN105782147A (en) * | 2014-12-15 | 2016-07-20 | 西安众智惠泽光电科技有限公司 | Double-acting hydraulic control system of supercharging device |
| CN106523335A (en) * | 2016-08-25 | 2017-03-22 | 湖南莫尔顿智能勘探机器人有限公司 | Automatic reversing water pump |
| CN206338261U (en) * | 2016-11-17 | 2017-07-18 | 晏万文 | Ultrahigh-pressure hydraulic pressure charging system with fast discharging component |
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Effective date of registration: 20200116 Address after: 201800 room j1182, floor 2, building 39, No. 52, Chengliu Road, Jiading District, Shanghai Applicant after: Shanghai Volkswagen Hydraulic System Co., Ltd. Address before: 523000 Dongguan City, Guangdong Province, Songshan Lake High-tech Industrial Development Zone Headquarters, No. 2, No. 1 District, No. 2, No. 201 Applicant before: Dongguan hate Paavo Hydraulic Technology Co., Ltd. |
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