CN2641317Y - Reciproating type gas compressor - Google Patents
Reciproating type gas compressor Download PDFInfo
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- CN2641317Y CN2641317Y CN 03280244 CN03280244U CN2641317Y CN 2641317 Y CN2641317 Y CN 2641317Y CN 03280244 CN03280244 CN 03280244 CN 03280244 U CN03280244 U CN 03280244U CN 2641317 Y CN2641317 Y CN 2641317Y
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Abstract
The utility model relates to a reciprocating gas compressing device on the gas compressor, and is characterized in that: a piston arranged in the cylinder divides the inner cavity of the cylinder into an air cavity and an oil cavity; a gas inlet and a gas outlet are arranged at one end of the cylinder; a gas inlet valve is arranged between the gas cavity and gas inlet of the cylinder; a gas outlet valve is arranged between the gas cavity and gas outlet of the cylinder; a gas inlet and a gas outlet communicating with the oil cavity are arranged at the other end of the cylinder; the cylinders are grouped into two; the two working oil ports of a reversing valve provided with more than two operating positions and more than four oil ports are respectively connected with all the oil outlets of the two groups of cylinders; the oil outlet and oil inlet of the hydraulic pump are respectively connected with the oil inlet and oil returning port of the reversing valve; the gas inlet and gas outlet of all the cylinders are respectively connected with the gas inlet pipeline and the gas outlet pipeline. The reciprocating gas compressing device has the advantages of the low motion frequency, less motion components, high reliability, low cost, low gas exhaust temperature, larger single pressure than the gas inlet range and suitability for the pipe line compressor with low emissions and high or medium pressure.
Description
Technical field
The utility model relates to the reciprocating type gas compressing apparatus on the gas compressor, specifically a kind of gas compressing apparatus that drives workpiece by the liquid transfiguration.
Background technique
Reciprocating type gas compressing apparatus on the existing gas compressor has two kinds of piston type and membrane types.The structural principle of gas piston compression set pressurized gas is that the prime mover that rotatablely moves moves back and forth piston by connecting rod, and then realizes sucking and extruding gas by piston, improves the pressure of gas.The structural principle of membrane type gas compressing apparatus pressurized gas is, the prime mover that rotatablely moves moves back and forth piston by connecting rod, be full of hydraulic oil between piston in the cylinder and diaphragm, the to-and-fro motion of piston constantly is out of shape diaphragm, thereby make the volume-variation in cylinder interior diaphragm the place ahead, reach the suction and the compression of gas, obtain the high pressurized gas of pressure.More than the deficiency that exists of two kinds of gas compressing apparatus be: the rotating speed height of compressor crank shaft, complex structure, the delivery temperature height, single stage of pressure is than little, moving element and easily damaged parts are many, less reliable, cost height.
Summary of the invention
The purpose of this utility model is to provide that a kind of to be compressed the gas temperature rise little, and moving element is few, and the reliability height is by hydraulically powered gas compressing apparatus.
For achieving the above object, the utility model adopts following scheme: reciprocating type gas compressing apparatus, it includes cylinder, piston is housed in the cylinder, piston is separated into air cavity and oil pocket with cylinder inner cavity, one end of cylinder is provided with suction port and relief opening, be provided with suction valve between the air cavity of cylinder and suction port, and be provided with outlet valve between relief opening, the other end of cylinder is provided with the oil drain out that advances that communicates with oil pocket, cylinder is two groups, every group can be more than one, it also includes one and has two above working positions, the selector valve of four above hydraulic fluid ports, two actuator ports of selector valve join with the oil drain out that respectively advances of two groups of cylinders respectively, be that an actuator port of selector valve and the oil drain out that respectively advances of one group of cylinder join, the oil drain out that respectively advances of another actuator port and another group cylinder joins, the oil drain out of one oil hydraulic pump, inlet port respectively with the filler opening of this selector valve, return opening joins, selector valve can be a two-position four way change valve, three position four-way directional control valve or combination brake switch and proporting with two-position four way change valve function, in addition, selector valve can be solenoid directional control valve or hand-operated direction valve, the suction port and the air inlet pipeline of each cylinder join, and the relief opening and the gas exhaust piping of each cylinder join.
When primer fluid press pump, selector valve were in a working position, oil hydraulic pump is pump oil in the oil pocket of one group of cylinder, simultaneously from another the group cylinder oil pocket in oil suction.After being filled oil in the oil pocket of one group of cylinder, handle selector valve, when making it be in another working position, oil hydraulic pump from former by oil suction the oil pocket of one group of cylinder of pump oil, and to former by the oil pocket of one group of cylinder of oil suction in pump oil.So constantly move in circles, carry out pump oil or oil suction, realize the to-and-fro motion of piston by what take turns in the oil pocket of oil hydraulic pump to two groups of cylinders.By the to-and-fro motion of piston, the gas of cylinder outside is inhaled in the air cavity of cylinder by suction port through air inlet pipeline, and is discharged the back by Piston Compression from relief opening and carried by gas exhaust piping in this space, can obtain compressed gas.Because it is power source that this gas compressing apparatus adopts hydraulic pressure, the reciprocating frequency of piston is little, and therefore, the temperature rise that is compressed gas in the cylinder is little, and cylinder can dispel the heat timely, and delivery temperature is low; And the moving element of this gas compressing apparatus is few, so, its reliability height, cost is low; In addition, the suction pressure scope of this gas compressing apparatus is wide, can realize the step-less adjustment of air displacement by the oil drain quantity of regulator solution press pump, and single stage of pressure is than big, and pressurized gas is pollution-free, is specially adapted to float amount mesohigh booster compressor.
Description of drawings
The structural drawing of Fig. 1 the utility model embodiment one used cylinder;
The I portion enlarged view of Fig. 2 Fig. 1;
Fig. 3 the utility model embodiment one systematic schematic diagram;
Fig. 4 the utility model embodiment one electrical schematic diagram;
The structural drawing of Fig. 5 the utility model embodiment two used cylinders;
The II portion enlarged view of Fig. 6 Fig. 5;
Fig. 7 the utility model embodiment two systematic schematic diagram;
Fig. 8 the utility model embodiment two electrical schematic diagram.
Embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is further specified.
Embodiment one
Referring to Fig. 1, piston 5 is housed in the cylinder 1, piston 5 with cylinder inner cavity be separated into air cavity 1 ' and oil pocket 1 "; cylinder 1 one ends are provided with suction port 3 and relief opening 4; air cavity 1 of cylinder 1 ' with the suction valve of 3 of suction ports, be combined into outlet valve 2 with 4 outlet valves employings one of relief opening, and this is combined into, and outlet valve 2 collects suction valves and outlet valve is an one.The other end of cylinder 1 is provided with and its oil pocket 1, and " what communicate advances oil drain out 6.Be combined into the air cavity 1 of the structure of outlet valve 2 and it and cylinder 1 ', the combination of suction port 3 and relief opening 4 is the common structure on the existing cylinder that is used for pressurized gas.
Referring to Fig. 1,2, during cylinder 1 inner carrier 5 rising pressurized gass, its air cavity 1 ' interior air pressure overcomes the elastic force and the exhaust back pressure of spring 7, outlet valve valve block 8 is moved up, the air cavity 1 of cylinder 1 ' connect with relief opening 4, gas is discharged from relief opening 4, simultaneously, air pressure in the cylinder 1 makes suction valve valve block 9 with port 2 ' seal, the air cavity 1 of cylinder 1 ' with suction port 3 partitions.When piston 5 moves down, the air pressure of air cavity 1 ' interior is less than the air pressure at suction port 3 places, the air pressure at suction port 3 places overcomes the elastic force of spring 10, suction valve valve block 9 is moved down, the air cavity 1 of cylinder 1 ' connect with suction port 3, simultaneously, the air pressure at relief opening 4 places makes outlet valve valve block 8 seal port 2 ", air cavity 1 ' cut off with relief opening 4.
Referring to Fig. 3, cylinder 1 is two groups, and every group can be more than one, and selector valve is a two-position four-way solenoid directional control valve 16.Two actuator ports of two-position four-way solenoid directional control valve 16 join with the oil drain out 6 that respectively advances of two groups of cylinders 1 respectively, promptly one group of cylinder 1 in two-position four-way solenoid directional control valve 16 actuator port and left side advance respectively that oil drain out 6 joins, the oil drain out 6 that respectively advances of one group of cylinder 1 on another actuator port and right side joins.The oil drain out of oil hydraulic pump 22 and inlet port join with the filler opening and the return opening of two-position four-way solenoid directional control valve 16 respectively, and the suction port 3 and the air inlet pipeline 12 of each cylinder 1 join, and the relief opening 4 and the gas exhaust piping 11 of each cylinder 1 join.Two actuator ports of two-position four-way solenoid directional control valve 16 join with the pressure measurement end of a pressure transmitter 14,15 respectively, the pressure measurement end of a gas exhaust piping 11 and a pressure transmitter 13 joins, pressure transmitter 13 is used to measure the exhaust pressure of each cylinder 1, and pressure transmitter 14,15 is used for measuring respectively the oil pressure of two groups of cylinder 1 oil pockets.Pressure transmitter 13,14,15 adopts DW802 type pressure transducer.In addition, be connected to series flow control valve 21 between the filler opening of the oil drain out of oil hydraulic pump 22 and two-position four-way solenoid directional control valve 16, an oil hydraulic pump 22 and a relief valve 23 join, be connected to oil cooler 20 between the return opening of the inlet port of oil hydraulic pump 22 and two-position four-way solenoid directional control valve 16, the inlet port of oil hydraulic pump 22 also joins by an one-way valve 18 and an oil feeding reservoir 17.Oil cooler 20 can make circuit working medium oil obtain cooling.When this gas compressing apparatus in use for some time, hydraulic system has certain seepage because seepage is when reducing the oil pressure of hydraulic system, oil feeding reservoir 17 can be opened one-way valve 18, to the automatic repairing of hydraulic system.Between the filler opening of oil feeding reservoir 17 and two-position four-way solenoid directional control valve 16, also be connected to a gate valve 19, when the oil in the system is too much, can open gate valve 19 the oil pressure oil sump tank.In addition, two-position four-way solenoid directional control valve 16, series flow control valve 21, relief valve 23, oil hydraulic pump 22, oil cooler 20, oil feeding reservoir 17, one-way valve 18 and gate valve 19 are existing product in the present embodiment.
Referring to Fig. 4, the output terminal of three pressure transmitters 13,14,15 among Fig. 3 joins with compensation end, direct current+24V end of the expansion module of a programmable controller 24 respectively, wherein, pressure transmitter 13 joins with RA, A+, pressure transmitter 14 joins with RB, B+, and pressure transmitter 15 joins with RC, C+.The electromagnet 16 of two-position four-way solenoid directional control valve 16 ' an end join with the zero line of ac power supply and the ac power supply zero line side N on the programmable controller 24, but also the output terminal 0.0 that control coil and fus F by auxiliary reclay K connect programmable controller 24, the electromagnet 16 of two-position four-way solenoid directional control valve 16 ' normally opened contact and the live wire of ac power supply and ac power supply live wire end 1L programmable controller 24 on of the other end by auxiliary reclay K, 2L, L1 joins, this electromagnet 16 ' two terminations excess voltage suppressor RC is arranged, be connected to control knob S between input end 0.0 on the programmable controller 24 and direct current+24V end L+.The model of the elementary cell of programmable controller 24 is CPU222, and the model of expansion module is EM231, and its manufacturer is a SIEMENS.To program of programmable controller 24 establishments, make it at the pressure signal that collects pressure transmitter 14 during greater than the pressure signal of pressure transmitter 13, promptly at the measured pressure of pressure transmitter 14 greater than greater than the measured pressure of pressure transmitter 13 time, output terminal 0.0 set; The pressure signal that collects pressure transmitter 15 is during greater than the pressure signal of pressure transmitter 13, promptly at the measured pressure of pressure transmitter 15 greater than greater than the measured pressure of pressure transmitter 13 time, output terminal 0.0 resets.In addition, the model of auxiliary reclay K is: the model of UM72-R-230UC/1, control knob S is: the model of LA39-11/g, fus F is: the model of RT18-32X/1P, excess voltage suppressor RC is: YZG2-31/JG.
In conjunction with Fig. 3, Fig. 4, primer fluid press pump 22 is pressed control knob S, makes programmable controller 24 connect power supply, and oil hydraulic pump 22 and programmable controller 24 are started working.At this moment, the output terminal 0.0 of programmable controller 24 resets, the electromagnet 16 of two-position four-way solenoid directional control valve 16 ' not, oil hydraulic pump is from the oil pocket oil suction of right cylinder 1 and pump oil in the oil pocket of cylinder 1 to the left, piston 5 in the left hand cylinder 1 moves up, piston 5 in the right cylinder 1 moves down, left hand cylinder 1 exhaust, and right cylinder 1 is air-breathing.After the piston in the left hand cylinder 15 is moved upwards up to top in the cylinder, oil pressure in its oil pocket can rise, during exhaust pressure that the oil pressure that records when pressure transmitter 14 records greater than pressure transmitter 13, output terminal 0.0 set of programmable controller 24, the electromagnet 16 of two-position four-way solenoid directional control valve 16 ', 16 commutations of two-position four-way solenoid directional control valve, oil hydraulic pump 22 oil suction and pump oil in cylinder 1 oil pocket to the right in left hand cylinder 1 oil pocket then, piston 5 in the right cylinder 1 moves up, piston 5 in the left hand cylinder 1 moves down, the right cylinder exhaust, left hand cylinder 1 is air-breathing.After the piston in the right cylinder 15 is moved upwards up to top in the cylinder, oil pressure in its oil pocket can rise, during exhaust pressure that the oil pressure that records when pressure transmitter 15 records greater than pressure transmitter 13, the output terminal 0.0 of programmable controller 24 resets, electromagnet 16 ' the dead electricity of two-position four-way solenoid directional control valve 16, two-position four-way solenoid directional control valve 16 commutation, oil hydraulic pump are again from right cylinder 1 oil pocket oil suction and pump oil in cylinder 1 oil pocket to the left.So circulation can realize that two groups of cylinders 1 are constantly air-breathing by turns, exhaust.
Embodiment two
Referring to Fig. 5, Fig. 6, the cylinder of present embodiment is increasing following structure on the basis of cylinder shown in Figure 1: be provided with counterbore 27 on cylinder 1 cover plate, the aperture of counterbore 27 is positioned at the inboard of cylinder 1 cover plate, the transmission rod 26 of one shouldered 28 is through in the counterbore 27, the axle sleeve 29 and the transmission rod 26 that are equipped with in the counterbore 27 are positioned at the shaft part Spielpassung of shoulder block below 28, transmission rod 26 one end when free state stretches out outside the counterbore 27, outside the cover plate of cylinder, be provided with an electromagnetic induction switch 25, electromagnetic induction switch 25 vertical direction near and aim at transmission rod 26.In addition, the cylinder of present embodiment and shown in Figure 1 identical.In addition, Fig. 5, cylinder shown in Figure 6 should be vertical state when being provided with.
Referring to Fig. 7, present embodiment and embodiment's one difference is: about in two groups of cylinders 1, respectively there is one to adopt Fig. 5, structure shown in Figure 6, and should vertically be provided with, do not establish pressure transmitter in the present embodiment, but joining an electromagnetic induction switch 25 on two cylinders 1 that vertically are provided with and a programmable controller.In addition, his part of its present embodiment is all identical with embodiment one.
Referring to Fig. 8, the electromagnet 16 of the two-position four-way solenoid directional control valve 16 among Fig. 7 ' an end join with the zero line of ac power supply and the ac power supply zero line side N on the programmable controller 30, but also the output terminal 0.0 that control coil and fus F by auxiliary reclay K connect programmable controller 30, the electromagnet 16 of two-position four-way solenoid directional control valve 16 ' normally opened contact and the live wire of ac power supply and ac power supply live wire end 1L programmable controller 30 on of the other end by auxiliary reclay K, 2L, L1 joins, electromagnet 16 ' two terminations excess voltage suppressor RC is arranged, be connected to control knob S between input end 0.0 on the programmable controller 30 and direct current+24V end L+, an end of two electromagnetic induction switch 25 respectively with the input end 0.1 of programmable controller 30,0.2 join, the direct current of another termination programmable controller 30+24V holds L+.The electromagnetic induction switch 25 that electromagnetic induction switch 25 on the left of among Fig. 7 connects input end 0.1, right side connects input end 0.2, and programmable controller 30 is produced for SIEMENS, model is the elementary cell of CPU222.For present embodiment, also to program of programmable controller 30 establishment, make its two input ends 0.1,0.2 when collecting the signal of two electromagnetic induction switch, 25 inputs respectively, output terminal 0.0 set respectively, reset.In addition, the model of electromagnetic induction switch 25 is: IH20 type inductance approach switch, the model of other each devices be identical with embodiment one all.
In conjunction with Fig. 6, Fig. 7, Fig. 8, primer fluid press pump 22 is pressed control knob S, makes programmable controller 30 connect power supply, and oil hydraulic pump 22 and programmable controller 30 are also started working.At this moment, output terminal 0.0 resets, the electromagnet 16 of two-position four-way solenoid directional control valve 16 ' not, oil hydraulic pump 22 is from the oil pocket oil suction of right cylinder 1 and pump oil in the oil pocket of cylinder 1 to the left, piston 5 in the left hand cylinder 1 moves up, piston 5 in the right cylinder 1 moves down, left hand cylinder 1 exhaust, and right cylinder 1 is air-breathing.After the piston in the left hand cylinder 15 is moved upwards up to top in the cylinder, piston 5 in the left hand cylinder 1 promotes transmission rod 26 and moves up, when transmission rod 26 moves up near electromagnetic induction switch 25, electromagnetic induction switch 25 closures, the input end 0.1 of programmable controller 30 collects input signal, its output terminal 0.0 set, the electromagnet 16 of two-position four-way solenoid directional control valve 16 ', 16 commutations of two-position four-way solenoid directional control valve, oil hydraulic pump 22 oil suction and pump oil in cylinder 1 oil pocket to the right in left hand cylinder 1 oil pocket then, the piston of right cylinder 1 moves up, and the piston in the left hand cylinder 1 moves down, the right cylinder exhaust, left hand cylinder 1 is air-breathing.After the piston in the right cylinder 1 is moved upwards up to top in the cylinder, piston 5 in the right cylinder 1 promotes transmission rod 26 and moves up, when transmission rod 26 moves up near electromagnetic induction switch 25, electromagnetic induction switch 25 closures, the input end 0.2 of programmable controller 30 collects input signal, and output terminal 0.0 resets again.Two-position four-way solenoid directional control valve 16 dead electricity commutations, oil hydraulic pump are again from right cylinder 1 oil pocket oil suction and pump oil in cylinder 1 oil pocket to the left.So circulation can realize that two groups of cylinders 1 are constantly air-breathing by turns, exhaust.
Claims (3)
1, reciprocating type gas compressing apparatus, it includes cylinder, piston is housed in the cylinder, piston is separated into air cavity and oil pocket with cylinder inner cavity, one end of cylinder is provided with suction port and relief opening, be provided with suction valve between the air cavity of cylinder and suction port, and be provided with outlet valve between relief opening, it is characterized in that: the other end of cylinder is provided with the oil drain out that advances that communicates with oil pocket, cylinder is two groups, every group can be more than one, it also includes one and has two above working positions, the selector valve of four above hydraulic fluid ports, two actuator ports of selector valve join with the oil drain out that respectively advances of two groups of cylinders respectively, the oil drain out of one oil hydraulic pump, inlet port respectively with the filler opening of this selector valve, return opening joins, and the suction port and the air inlet pipeline of each cylinder join, and the relief opening and the gas exhaust piping of each cylinder join.
2, reciprocating type gas compressing apparatus according to claim 1, it is characterized in that: selector valve is two-position four-way solenoid directional control valve (16), two actuator ports of two-position four-way solenoid directional control valve (16) respectively with a pressure transmitter (14,15) pressure measurement end joins, gas exhaust piping (11) joins with the pressure measurement end of a pressure transmitter (13), these three pressure transmitters (13,14,15) output terminal is held (RA with the compensation end and the direct current+24V of the expansion module of a programmable controller (24) respectively, A+, RB, B+, RC, C+) join, ac power supply zero line side (N) on one end of the electromagnet (16 ') of two-position four-way solenoid directional control valve (16) and the zero line of ac power supply and the programmable controller (24) joins, but also the output terminal (0.0) that control coil and fus (F) by auxiliary reclay (K) connect programmable controller (24), the other end of the electromagnet (16 ') of two-position four-way solenoid directional control valve (16) is by normally opened contact and the live wire of ac power supply and the ac power supply live wire end (1L on the programmable controller (24) of auxiliary reclay (K), 2L, L1) join, two terminations of electromagnet (16 ') have excess voltage suppressor (RC), are connected to control knob (S) between input end (0.0) on the programmable controller (24) and direct current+24V end (L+).
3, reciprocating type gas compressing apparatus according to claim 1, it is characterized in that: have one vertically to be provided with in every group of cylinder (1), vertically cylinder (1) roof that is provided with is provided with counterbore (27), the aperture of counterbore (27) is positioned at the inboard of cylinder (1) roof, the transmission rod (26) of one shouldered (28) is through in the counterbore (27), the axle sleeve (29) that is equipped with in the counterbore (27) is positioned at the following shaft part Spielpassung of shoulder block (28) with transmission rod (26), transmission rod (26) one end when free state stretches out counterbore (27), on the end cap of cylinder (1), be provided with an electromagnetic induction switch (25), electromagnetic induction switch (25) vertical direction near and aim at transmission rod (26), selector valve is two-position four-way solenoid directional control valve (16), ac power supply zero line side (N) on one end of the electromagnet (16 ') of two-position four-way solenoid directional control valve (16) and the zero line of ac power supply and the programmable controller (30) joins, but also the output terminal (0.0) that control coil and fus (F) by auxiliary reclay (K) connect programmable controller (30), the other end of the electromagnet (16 ') of two-position four-way solenoid directional control valve (16) is by normally opened contact and the live wire of ac power supply and the ac power supply live wire end (1L on the programmable controller (30) of auxiliary reclay (K), 2L, L1) join, two terminations of electromagnet (16 ') have excess voltage suppressor (RC), be connected to control knob (s) between input end (0.0) on the programmable controller (30) and direct current+24V end (L+), an end of two electromagnetic induction switch (25) respectively with two input ends (0.1 of programmable controller (30), 0.2) join, the direct current of another termination programmable controller (30)+24V holds (L+).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03280244 CN2641317Y (en) | 2003-09-18 | 2003-09-18 | Reciproating type gas compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03280244 CN2641317Y (en) | 2003-09-18 | 2003-09-18 | Reciproating type gas compressor |
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| Publication Number | Publication Date |
|---|---|
| CN2641317Y true CN2641317Y (en) | 2004-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 03280244 Expired - Fee Related CN2641317Y (en) | 2003-09-18 | 2003-09-18 | Reciproating type gas compressor |
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| CN100337031C (en) * | 2005-10-13 | 2007-09-12 | 南京全章液力科技有限公司 | Hydraulic reciprocating pump |
| CN100436960C (en) * | 2006-05-10 | 2008-11-26 | 韩绍良 | System and method of keeping normal pressure for water tank of water heater |
| CN102230573A (en) * | 2011-05-13 | 2011-11-02 | 潘健 | Liquid piston type gas treatment device |
| CN101566175B (en) * | 2009-05-20 | 2012-08-22 | 杨德君 | Gas pressurized device |
| CN102667155A (en) * | 2009-11-12 | 2012-09-12 | 罗伯特·博世有限公司 | Air conditioning compressor for a vehicle and vehicle |
| CN102953955A (en) * | 2011-08-22 | 2013-03-06 | 时剑 | Compressor with liquid piston |
| CN103033711A (en) * | 2012-12-14 | 2013-04-10 | 杭州诺尔康神经电子科技有限公司 | Receiving coil reliability testing device |
| CN102089518B (en) * | 2007-12-14 | 2014-12-10 | 大卫·麦克康内尔 | Wind to electric energy conversion with hydraulic storage |
| CN104989687A (en) * | 2015-06-29 | 2015-10-21 | 三一重型能源装备有限公司 | Fracturing pump hydraulic system and fracturing truck |
| CN105454469A (en) * | 2014-09-10 | 2016-04-06 | 张利江 | Automatic self-energy dish-up device of carding machine |
| CN106499609A (en) * | 2016-10-12 | 2017-03-15 | 哈尔滨工程大学 | A kind of single stage piston formula compressor of air pressure boosting and multi-stage piston compressor |
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| CN100337031C (en) * | 2005-10-13 | 2007-09-12 | 南京全章液力科技有限公司 | Hydraulic reciprocating pump |
| CN100436960C (en) * | 2006-05-10 | 2008-11-26 | 韩绍良 | System and method of keeping normal pressure for water tank of water heater |
| CN102089518B (en) * | 2007-12-14 | 2014-12-10 | 大卫·麦克康内尔 | Wind to electric energy conversion with hydraulic storage |
| CN101566175B (en) * | 2009-05-20 | 2012-08-22 | 杨德君 | Gas pressurized device |
| CN102667155A (en) * | 2009-11-12 | 2012-09-12 | 罗伯特·博世有限公司 | Air conditioning compressor for a vehicle and vehicle |
| CN102230573A (en) * | 2011-05-13 | 2011-11-02 | 潘健 | Liquid piston type gas treatment device |
| CN102953955A (en) * | 2011-08-22 | 2013-03-06 | 时剑 | Compressor with liquid piston |
| CN103033711A (en) * | 2012-12-14 | 2013-04-10 | 杭州诺尔康神经电子科技有限公司 | Receiving coil reliability testing device |
| CN103033711B (en) * | 2012-12-14 | 2015-01-21 | 浙江诺尔康神经电子科技股份有限公司 | Receiving coil reliability testing device |
| CN105454469A (en) * | 2014-09-10 | 2016-04-06 | 张利江 | Automatic self-energy dish-up device of carding machine |
| CN104989687A (en) * | 2015-06-29 | 2015-10-21 | 三一重型能源装备有限公司 | Fracturing pump hydraulic system and fracturing truck |
| CN106523323A (en) * | 2015-09-11 | 2017-03-22 | 自贡通达机器制造有限公司 | Hydraulic main unit cylinder without piston rod for connection and hydraulic compressor |
| WO2017137014A1 (en) * | 2016-02-14 | 2017-08-17 | 北京艾派可科技有限公司 | Relative pressure gas energy production system and production method |
| CN108779673A (en) * | 2016-02-14 | 2018-11-09 | 北京艾派可科技有限公司 | It can production system and production method to calming the anger |
| CN106499609A (en) * | 2016-10-12 | 2017-03-15 | 哈尔滨工程大学 | A kind of single stage piston formula compressor of air pressure boosting and multi-stage piston compressor |
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