WO1993001411A1 - Pompe comportant un piston a manchon - Google Patents

Pompe comportant un piston a manchon Download PDF

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Publication number
WO1993001411A1
WO1993001411A1 PCT/JP1992/000881 JP9200881W WO9301411A1 WO 1993001411 A1 WO1993001411 A1 WO 1993001411A1 JP 9200881 W JP9200881 W JP 9200881W WO 9301411 A1 WO9301411 A1 WO 9301411A1
Authority
WO
WIPO (PCT)
Prior art keywords
piston
sleeve
pump
rotor
type
Prior art date
Application number
PCT/JP1992/000881
Other languages
English (en)
Japanese (ja)
Inventor
Hiroyuki Hashimoto
Yian Chen
Rungcheng Chien
Original Assignee
Chen, Chongyuan
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chen, Chongyuan filed Critical Chen, Chongyuan
Publication of WO1993001411A1 publication Critical patent/WO1993001411A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B25/00—Multi-stage pumps
    • F04B25/02—Multi-stage pumps of stepped piston type

Definitions

  • the present invention relates to a piston gas pump (compressor and vacuum pump) having a small volume, a large pressure ratio and no leakage, and a small volume and a non-leakage pump.
  • a piston gas pump compressor and vacuum pump
  • a small volume having a small volume, a large pressure ratio and no leakage, and a small volume and a non-leakage pump.
  • the bis pump is used as a positive displacement fluid machine that handles liquid and gas.
  • the number of compression stages corresponds to the number of cylinders. If a single cylinder is used to achieve two-stage compression, a differential structure as shown in Fig. 3 must be used.
  • a double-acting differential pump as shown in a and b in Fig. 4 is used. A formula structure must be used.
  • the present invention uses a sleeve piston structure.
  • the number of compression stages can be increased in one cylinder, so that the volume is small and the pressure is low.
  • a liquid piston pump that can be pushed out is achieved.
  • the present invention can realize a leak-free piston pump by using a rotor piston type and an electromagnetic drive system. Disclosure of the invention
  • a sleeve in the cylinder that can perform multiple relative movements with a valve (sleeves 3 and 6 3 fixed here).
  • a valve valves 3 and 6 3 fixed here.
  • 8 3, 9 3, 1 0 3, 1 13 are called fixed sleeves
  • movable sleeves 2, 62, 82, 92, 102, 112 are fixed sleeves.
  • gas compressor and vacuum pump
  • the number of compression stages of the pump is the same as the number of sleeves.
  • Fig. 1 is a principle diagram. When the sleeve piston reciprocates by external power, the pressure in the air chambers b and c changes according to the volume. , BII, bill, blV and cl, cII, cIII, cIV.
  • the state of the gas in the air chamber b will be described. Assuming that the sleeve viston is at the right dead center 8 in the state of Fig. 1, the P and V values of the room b are at the bl point in Fig. 2. At that time, due to the resistance of the suction valve 4, the pressure in the room b is slightly lower than the atmospheric pressure. As the sleeve piston moves to the left, the volume of chamber b decreases and the pressure increases (line b I). At point b2, the pressure in chamber b becomes the sum of the pressure in chamber c and the resistance of valve 5, so that the gas in chamber b is exhausted to chamber c.
  • the sum of the pressure in the room b and the resistance of the suction valve 4 becomes the atmospheric pressure, and the outside atmospheric pressure air starts to be sucked into the room b (line b ⁇ -).
  • the state of the gas in the air chamber c is as follows: when the sleeve piston is at the position shown in Fig. 1, the air chamber c is at the end point of the exhaust, and the P and V values are at the point cl. the pressure is Ru sum der resistor ( ⁇ ⁇ 3) of discharge valve 6 and the actual output pressure. As the biston moves to the left, the gas expands, the volume increases, and the pressure decreases (line c I).
  • P p b and P c are the pressure of the atmospheric pressure '
  • the pressure in air chamber c, P ⁇ , P 2 , and P 3 are the suction pressure, the first stage discharge pressure, and the second stage discharge pressure, and ⁇ ⁇ ⁇ , 2 and ⁇ ⁇ 3 pressure loss
  • Eta and X is the total length and piston tons of stroke work chambers
  • X b 0, X c 0 is the length of the clearance volume of the air chamber b and the air chamber c
  • V b 0, V co is the air chamber b
  • the gap volume between the chamber and the air chamber c, r and R are the semi-internal and external phantoms of piston
  • n is the Politrobe index.
  • the sleeve-biston type gas pump does not only perform two-stage compression with a single cylinder, but also can increase the number of stages and increase the number of compression stages.
  • Figures 6 and 7 show the structure and PV diagram of a three-stage compressor. The principle is the same as that of a two-stage compressor with only an increase in the number of stages.
  • Fig.8 The principle of the sleeve piston type liquid pump is shown in Fig.8.
  • the sleeve piston moves downward, the volume of the chamber A decreases, and the liquid flows according to the pressure difference between the chambers A and B, and passes through the valve 85 and the sleeve piston. Is discharged out of the pump.
  • the sleeve piston moves upward, the volume of the room B decreases, the liquid in the room B is discharged, and at the same time, the volume of the room A increases and the pressure of the room A decreases. Therefore, the liquid at the bottom is sucked into the pump.
  • Fig. 1 shows the principle of the three-stage gas pump with a sleeve piston.
  • Figure 2 is a PV diagram of a two-stage sleeve piston type gas pump.
  • Fig. 3 shows the principle of a differential two-stage gas pump.
  • Figure 4a shows the principle of a double-acting liquid pump.
  • Fig. 4b is the principle diagram of the differential liquid pump.
  • Figure 5 is a theoretical circulating power diagram of a three-stage sleeve pump type gas pump.
  • FIG. 6 is a cross-sectional view showing a structure of a three-stage gas pump of a sleeve biston type.
  • FIG. 7 is a PV diagram of a three-stage sleeve piston type gas pump.
  • FIG. 8 is a principle diagram of a sleeve piston type liquid pump.
  • FIG. 9 is a longitudinal sectional view showing an embodiment of a crank-driven sleeve piston gas pump.
  • FIG. 10 shows an embodiment of an electromagnetically driven sleeve piston gas pump.
  • FIG. 11 is a structural diagram of a rotor piston pump.
  • FIG. 12 is a view showing a guide wheel constituting a guide groove of the power transmission mechanism.
  • the sleeve piston pump uses three driving methods: a crank type (Figs. 6 and 9), an electromagnetic type (Fig. 10), and a rotor piston type (Fig. 11). And can be.
  • the crank drive method is well known, but if the electromagnetic type and the rotor piston type are used, there is no drive shaft penetration, so a leak-free piston pump can be realized.
  • FIG. 10 shows an electromagnetic embodiment.
  • permanent magnets are provided on the sleeve piston, and alternating current is passed through the upper and lower coils to form the magnetic field shown in Fig. 1 ⁇ .
  • the direction of the magnetic field also changes, and the sleeve piston is renewed. It moves upward by the action of the formed magnetic force.
  • the well-known gas flows through a narrow gap and the cushion structure and the pump.
  • a ring buffer structure can be used, a closed chamber buffer structure is used here.
  • Fig. 11 shows an embodiment of the rotor piston type pump.
  • the rotor of the motor is integrated with the sleeve piston, and the guide wheel forms the guide groove of the power transmission mechanism at the top of the stator (Fig. 1). 2)
  • the guide wheel on the rotor rotates in this groove.
  • the wagon moves along this groove, and reciprocates in the axial direction at the same time as the rotor piston rotates.
  • the present invention can be applied to all areas of the piston pump. If a sleeve piston is adopted, the conventional piston type compressor and vacuum pump have the same number of cylinders, the number of compression stages is more than doubled, and a small volume and large pressure ratio In addition, the piston type liquid pump is different from the differential type and the double acting type, and the liquid is continuously pushed by one small volume piston. In addition, since the electromagnetic type and the rotor piston type in the present invention can be made leak-free, they are suitable for general fluids in small places as well as chemical-related fluids.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Compressor (AREA)

Abstract

En utilisant une configuration de piston à manchon, on permet à une pompe à air à piston (compresseur ou pompe à vide) de posséder plusieurs paliers de compression dans un seul cylindre et à une pompe hydraulique à piston de pomper un fluide en continu au moyen d'un petit piston unique en déplacement alternatif, ce qui n'est pas le cas dans des types de configuration à différentiel et à double effet. De plus, en utilisant un système de transmission de type électromagnétique et comportant un piston rotatif, il est possible de réaliser une pompe à piston possédant un petit volume, un rapport de compression élevé (dans le cas d'un compresseur et d'une pompe à vide) et exempte de fuites.
PCT/JP1992/000881 1991-07-10 1992-07-09 Pompe comportant un piston a manchon WO1993001411A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3195857A JPH0518351A (ja) 1991-07-10 1991-07-10 スリーブピストンポンプ
JP3/195857 1991-07-10

Publications (1)

Publication Number Publication Date
WO1993001411A1 true WO1993001411A1 (fr) 1993-01-21

Family

ID=16348153

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1992/000881 WO1993001411A1 (fr) 1991-07-10 1992-07-09 Pompe comportant un piston a manchon

Country Status (2)

Country Link
JP (1) JPH0518351A (fr)
WO (1) WO1993001411A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0793019A2 (fr) * 1996-03-01 1997-09-03 The BOC Group plc Pompes à vide
EP0823021A1 (fr) * 1995-04-27 1998-02-11 Thermo Power Corporation Compresseur de gaz haute pression
JP2004360701A (ja) * 2003-06-04 2004-12-24 Lg Electronics Inc リニア圧縮機

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5036247Y1 (fr) * 1970-05-28 1975-10-22
JPS5835681U (ja) * 1981-09-02 1983-03-08 東芝熱器具株式会社 圧縮機
JPS632628Y2 (fr) * 1983-02-28 1988-01-22

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5036247Y1 (fr) * 1970-05-28 1975-10-22
JPS5835681U (ja) * 1981-09-02 1983-03-08 東芝熱器具株式会社 圧縮機
JPS632628Y2 (fr) * 1983-02-28 1988-01-22

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0823021A1 (fr) * 1995-04-27 1998-02-11 Thermo Power Corporation Compresseur de gaz haute pression
EP0823021A4 (fr) * 1995-04-27 1999-01-13 Thermo Power Corp Compresseur de gaz haute pression
EP0793019A2 (fr) * 1996-03-01 1997-09-03 The BOC Group plc Pompes à vide
EP0793019A3 (fr) * 1996-03-01 1999-06-02 The BOC Group plc Pompes à vide
JP2004360701A (ja) * 2003-06-04 2004-12-24 Lg Electronics Inc リニア圧縮機

Also Published As

Publication number Publication date
JPH0518351A (ja) 1993-01-26

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