WO1981000889A1 - Pompe alternative - Google Patents

Pompe alternative Download PDF

Info

Publication number
WO1981000889A1
WO1981000889A1 PCT/JP1980/000009 JP8000009W WO8100889A1 WO 1981000889 A1 WO1981000889 A1 WO 1981000889A1 JP 8000009 W JP8000009 W JP 8000009W WO 8100889 A1 WO8100889 A1 WO 8100889A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
pressure
passage
discharge
suction
Prior art date
Application number
PCT/JP1980/000009
Other languages
English (en)
Japanese (ja)
Inventor
Y Namekata
Original Assignee
Arimitsu Ind
Y Namekata
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 Arimitsu Ind, Y Namekata filed Critical Arimitsu Ind
Priority to DE8080900419T priority Critical patent/DE3067664D1/de
Publication of WO1981000889A1 publication Critical patent/WO1981000889A1/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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/109—Valves; Arrangement of valves inlet and outlet valve forming one unit
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F04B49/24—Bypassing
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/102—Disc valves
    • F04B53/103—Flat-annular type disc valves

Definitions

  • the present invention relates to a reciprocating pump, more specifically, a suction passage and a discharge passage, and a suction valve provided at a tip end of a cylinder which freely supports a plunger in a reciprocating manner.
  • a Valve device consisting of discharge valve, fine 1
  • a pressure control valve device which operates the suction valve and the discharge valve by reciprocating the plunger to discharge the pressure fluid and to release the pressure control valve.
  • the present invention relates to a reciprocating pump in which a pressure in a discharge passage is adjusted to a desired pressure by a valve.
  • a pressure control valve device is provided on a reciprocating pump to adjust a fluid pressure in a discharge passage to a desired pressure. .
  • a valve box is formed separately from the main body of the reciprocating pump, and a valve seat and a valve body are incorporated in the valve box, and the valve A spring cylinder is mounted in the box to support a control spring that presses the valve body against the valve seat, and a pressure adjuster that adjusts the pressing force of the spring is provided at the tip of the spring cylinder.
  • This pressure control valve device is arranged in the middle of the discharge passage of the pump, and the inlet side of the valve box is connected to the discharge passage, and the outlet side is connected to the atmosphere at the outlet side.
  • the hose to be opened is installed
  • the present invention has been invented in view of the conventional problems as described above, and the main purpose is to adjust the pressure of the discharge passage to the set pressure while maintaining the structure.
  • Another object is to provide a reciprocating pump that can be easily assembled, has a reduced number of parts, and can be easily assembled.
  • a pressure control valve is supported on a valve seat that receives at least one of a suction valve and a discharge valve that are operated by reciprocation of a plunger.
  • the control valve is disposed in a discharge passage forming a cylinder, and is pressed against the valve seat by a control spring, and the control spring is supported by the cylinder. It is characterized in that the pressure adjusting element is provided in one movement, and the pressure control valve is provided with a ⁇ -cinder.
  • valve box was formed separately from the pump main part and incorporated was solved.
  • the present invention relates to a reciprocating pump improved as described above, and further includes a pressure receiving area in the discharge passage of the control valve on the outer peripheral surface of the pressure control valve.
  • a pressure receiving section having a larger pressure receiving area is provided, a pressure chamber is provided between the pressure receiving section and the cylinder, and the pressure receiving section is connected to an outlet of the discharge passage; 1 check valve interposed into the middle of ⁇ be that the liquid feed passage, bar to exit side the liquid feed passage of the check valve of this. and only set the I-pass passage, the pressure ⁇ Ba I c 0 scan passage
  • the pressure control valve communicates with the chamber, and with this configuration, the pressure control valve can be configured as an open-close valve with a simple structure.
  • FIG. 1 is a schematic longitudinal sectional view showing one embodiment of the present invention
  • FIG. 2 is an enlarged sectional view of a main part
  • FIG. 5 corresponds to FIG. 2 showing another embodiment of the present invention. There is an enlarged sectional view
  • the one shown in Figs. 1 and 2 is a triple reciprocating pump in which three bridges are arranged in parallel.
  • a drive shaft 2 is rotatably supported on bearings 1 and 3 via bearings 3, 3, and the drive shaft 2 has three cylindrical bodies having eccentric shaft holes 4 a. 4 and also
  • OMPI Three cylinders 5 are attached to the housing 1, and each cylinder 5 is attached to the cylinder chamber 5 a of each cylinder 5, and each cylinder is attached to the cam body 4.
  • the three plungers 7 connected via the head ⁇ reciprocate freely and are supported at the tip of each of the cylinders 5 by a suction passage 8 a and a discharge passage.
  • a cylinder head 8 having three cylinder heads 8 and three valve devices 9 are provided.
  • One of the cylinders 5 is provided with a pressure control valve 11 in one of the cylinders 5.
  • the seal member 51 and the seal member 51 are provided between the outer peripheral surface of each of the plungers 7 and the inner peripheral surface of each of the cylinder chambers 5a.
  • a seal receiver 52 to be supported and a spring 55 to press the seal member 51 against the seal receiver 52 are provided.
  • the cylinder 5 is sandwiched between the housing 1 and the cylinder head 8, and the cylinder head 8 is attached to the housing 1. (Not shown) to fix it.
  • valve device 9 opens and closes the valve seat 91 having a suction hole 9a at the center and a discharge hole 91 at the outer periphery, and the suction hole 91a.
  • the discharge valve 9S for opening and closing the suction valve 92 and the discharge hole 91, and the first and second pressures for pressing the suction valve 92 and the discharge valve 95 to the valve seat 91, respectively.
  • the valve seat 91 is composed of a valve spring body 94 1 and a circular flat plate-shaped valve seat body 91 1 c, and a central portion of the body 91 1 c. Cylindrical part 9 1 ⁇ i
  • the suction hole 91a is formed by a through hole formed at the center of the main body 9c and an inner space of the cylindrical portion 91d.
  • the discharge hole 91b is formed in the outer cylinder of the main body 91c, and the outer peripheral edge of the main body 9c is formed as a tip end surface of each of the cylinders 5 by Interposed between the cylinder head 8 and the cylinder head 8 by fixing the cylinder head 8, together with the cylinder 5,
  • the suction valve 92 is disposed at the outlet side of the suction port 91a, that is, inside the cylinder chamber 5a.
  • the discharge valve 9 S is one Oh than you disposed 3 ⁇ 4 the ejection unloading ⁇ 9 1 exit side immediately Chi inside discharge passage 8 of 3 ⁇ 4, this is al the suction valve 9 2 ⁇ beauty ejection off valve 9 5 Is pressed against the valve seat 91 by the first and second valve springs 94, 95.
  • the suction passage 8a and the discharge passage of the cylinder '8 are formed. 8, two through holes 8 1, 8 2, 85 are provided.
  • the respective valve seats 9 1, 8 2 are provided.
  • One of the tubular portions 9 1 «1 of the two valve seats is inserted and the suction holes 9 1a of the front two valve seats 9 1 are made to be the suction passages 8a.
  • the remaining one valve seat 91 has a cylinder.
  • Part 9 1 a is either short Ri by another tubular part 9 1 a
  • the control valve 11 is supported at its end, that is, at the inlet side of the suction hole 91a.
  • the control valve 11 is formed by a cylindrical body that is larger than the outer diameter of the cylindrical portion 91 a in the valve seat 91, and is provided at one end thereof with the cylindrical portion 9.
  • a ring-shaped bottom plate having an inner diameter almost the same as the inner diameter of 1a is continuously provided, and the pressure-receiving surface 11a is formed by this bottom plate.
  • the bottom plate is disposed in the discharge passage 8 so as to face the cylindrical portion 91 d, and the open side is the cylinder.
  • the suction hole 9 formed in the remaining one valve seat 91 moves freely into the through hole 85 provided in the node 8.
  • a control spring 12 is acted on the reversing valve 11 to press the pressure receiving surface 11 a of the bottom plate against the distal end surface of the tubular portion 91 d in the valve seat 91.
  • a pressure adjuster 1 S is screwed into the cylinder head 8, and a spring support 1 having a flow hole 14 a in the adjuster 15 is provided. 4, and the other end of the spring 12, one end of which is supported inside the bottom plate of the valve 11, is supported by the spring receiver 14.
  • the valve 91 has a suction hole 91a and a discharge hole 91, and receives the suction valve 92 and the discharge valve 95.
  • a valve seat or a discharge hole having a suction hole and receiving only the suction valve 92 and a discharge valve 9
  • the control valve 11 may be supported by a valve seat that receives only the number 5.
  • reference numeral 17 denotes a spring receiver of the spring 5S for pressing the seal member 51
  • reference numeral 18 denotes a second valve spring 9 for pressing the discharge valve 95.
  • 5 is a guide cylinder
  • 19 is a lock nut.o
  • the pressure control valve 11 in the above-described embodiment functions as a relief valve or a safety valve. But other
  • Fig. 3 The components shown in Fig. 3 are basically the same as those in Fig. 1, and the same components as those in Fig. 1 are assigned to the components having the same structure.
  • the pressure control valve 110 is formed by a stepped cylindrical body, and the small-diameter end portion is formed.
  • a first pressure-receiving surface 110a is formed by providing a ring-shaped bottom plate at the center, and an intermediate step portion has a larger pressure-receiving area than the first pressure-receiving surface 110a.
  • a pressure chamber 20 is provided, and a check valve 2 is interposed in the middle of the liquid feed passage 15 communicating with the outlet of the discharge passage 8, and the outlet of the check valve 21 is provided.
  • a bypass passage 22 is provided in the liquid supply passage 15 on the side, and the bypass passage 22 is communicated with the pressure chamber 20.
  • the pressure adjusting body 1S may be omitted.
  • the liquid pressurized in the cylinder chamber 5 a is discharged to the discharge passage 8 ⁇ by the reciprocating motion of the plunger 7, and is pressure-fed to the liquid transfer passage 15.
  • the gate valve 1 ⁇ ⁇ provided near the outlet of the liquid feed passage 15 is closed or the load connected to the liquid feed passage 15 increases, and the discharge passage
  • the pressure in the pressure chamber 8 reaches the set pressure
  • the pressure in the pressure chamber 20 also reaches the set pressure
  • the first and second pressure receiving surfaces 11 1 a and 11 1 of the pressure control valve 11 1 0 b respectively, a push-up force larger than the push-up force acting on the first and second pressure-receiving surfaces 110 a, 1 O b is applied, and the push-up force is applied by the push-up force.
  • the valve 11 is opened instantaneously, and the pressurized liquid in the discharge passage 8b flows out to the suction passage 8a.
  • the pressure in the discharge passage 8 3 ⁇ 4 decreases due to the outflow, but the pressure in the pressure chamber 20 does not decrease as the gate valve 1 ⁇ is opened or the load does not decrease.
  • the valve 110 is maintained in the open state, and the operation of the plunger 7 is stopped without load. Wear .
  • the shutoff valve 1 ⁇ ⁇ is opened or the load is reduced, and the pressure in the liquid supply passage 15 at the outlet side of the check valve 21 is reduced below the set pressure.
  • the pressure in the pressure chamber 20 also decreases, and the control valve 11 10 is pressed by the control spring 12 to close, and the discharge passage from the cylinder chamber 5 a is discharged.
  • the liquid discharged to 8 is sent to the liquid feed passage 15 at a pressure lower than the set pressure.
  • the present invention can also be applied to a single-system, a double-system, or a multi-system with four or more systems. .
  • the pressure control valve is supported by the valve seat for receiving one of the suction valve and the discharge valve, and is disposed in the discharge passage, and the pressure regulator is provided in the cylinder. Because of this, the liquid pressure can be adjusted and the structure is simpler and the number of parts can be reduced as compared with the above-mentioned conventional pump. Immediately, a valve seat dedicated to the pressure control valve, a valve box supporting the valve seat, and a spring cylinder accommodating the control spring and supporting the pressure adjusting body are unnecessary. In the case of control, since the discharge fluid can be returned to the suction passage, the hose can be made unnecessary, and the structure is simple and the number of parts is reduced. It is possible.
  • the structure is simple and the number of parts can be reduced, assembling can be facilitated, and the cost can be greatly reduced, and the compactness can be further improved. And it can be lightweight.
  • the pressure chamber is simple and the number of parts can be reduced, assembling can be facilitated, and the cost can be greatly reduced, and the compactness can be further improved. And it can be lightweight.
  • the underload valve can be configured with a simple structure and with a small number of parts. As a result, the assembly can be performed easily, the cost can be significantly reduced, and the connection can be made more compact and lighter. ⁇
  • the reciprocating pump according to the present invention is a hydraulic pump for a machine tool, and a chemical pump for spraying a chemical solution to agricultural products. It is useful as a high-pressure water pump for cleaning throats and as a fire-extinguishing pump mounted on a fire engine. Especially when a gate valve is installed in the liquid feed passage. Suitable for use.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Compressor (AREA)
  • Safety Valves (AREA)
  • Reciprocating Pumps (AREA)

Abstract

Une pompe alternative ayant une soupape d'admission (92), une soupape de refoulement (93), une soupape de commande de pression (11) comprenant une surface de reception de la pression est supportee sur un siege de soupape (91) pour supporter au moins l'une des soupapes (92 et 93), la surface de reception de la pression etant prevue sur un passage de refoulement (8b), la soupape (11) etant montee dans une culasse (8), et un ressort de commande (12) prevu dans un regulateur de pression (13) pour pousser le clapet (11) vers le siege de soupape (91). La soupape de commande (11) fonctionne comme une soupape de decompression, de surete et de decharge a l'aide d'une construction simple. Ainsi, cette pompe permet une reduction du nombre des composants et peut par consequent etre facilement assemblee dans un corps de pompe en vue de reduire son cout et son poids.
PCT/JP1980/000009 1979-09-18 1980-01-25 Pompe alternative WO1981000889A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8080900419T DE3067664D1 (en) 1979-09-18 1980-01-25 Reciprocating pump

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP54120480A JPS6047479B2 (ja) 1979-09-18 1979-09-18 多連式往復動ポンプ
JP79/120480 1979-09-18

Publications (1)

Publication Number Publication Date
WO1981000889A1 true WO1981000889A1 (fr) 1981-04-02

Family

ID=14787207

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1980/000009 WO1981000889A1 (fr) 1979-09-18 1980-01-25 Pompe alternative

Country Status (4)

Country Link
EP (1) EP0035569B1 (fr)
JP (1) JPS6047479B2 (fr)
DE (1) DE3067664D1 (fr)
WO (1) WO1981000889A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5096393A (en) * 1989-08-28 1992-03-17 Csir Peristaltic pump with hinged rotor support housing and adjustable tube rack

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5915191U (ja) * 1982-07-19 1984-01-30 三菱レイヨン株式会社 感知器のランプ継続点灯回路
JPS60157988U (ja) * 1984-03-28 1985-10-21 株式会社　スギノマシン プランジヤポンプにおける弁装置
JPS6420892A (en) * 1987-07-17 1989-01-24 Janome Sewing Machine Co Ltd Needle thread presser of sewing machine
JPH01146734U (fr) * 1988-03-18 1989-10-11
JP4964930B2 (ja) * 2009-09-17 2012-07-04 日立オートモティブシステムズ株式会社 ポンプ装置
JP5292480B2 (ja) * 2012-01-27 2013-09-18 日立オートモティブシステムズ株式会社 ポンプ装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49108104U (fr) * 1973-01-10 1974-09-14

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE72385C (de) * W. T. BELL in Breslau, Kaiser Wilhelmstrafse Anordnung von Saug- und Druckventil in dem Boden eines Pumpenstiefels
FR669992A (fr) * 1928-02-22 1929-11-22 Perfectionnements apportés aux ensembles siège de soupape-soupape, notamment aux ensembles du genre en question pour pompes à piston
US3255954A (en) * 1962-07-06 1966-06-14 Atlas Copco Ab Positive displacement compressors
DE1528432A1 (de) * 1965-07-07 1970-02-26 Paul Hammelmann Pumpenkopf
JPS4216714Y1 (fr) * 1965-12-08 1967-09-26
JPS4719767Y1 (fr) * 1968-09-30 1972-07-05
US4116212A (en) * 1976-06-14 1978-09-26 Pall Corporation Unidirectional flow control valve
AU2749777A (en) * 1976-08-25 1979-02-08 Applied Power Inc Fluid actuated hydraulic pump
DE2704754A1 (de) * 1977-02-04 1978-08-17 Speck Kolbenpumpen Fabrik Ventilanordnung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49108104U (fr) * 1973-01-10 1974-09-14

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0035569A4 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5096393A (en) * 1989-08-28 1992-03-17 Csir Peristaltic pump with hinged rotor support housing and adjustable tube rack

Also Published As

Publication number Publication date
JPS5644480A (en) 1981-04-23
EP0035569A4 (fr) 1982-01-11
EP0035569A1 (fr) 1981-09-16
EP0035569B1 (fr) 1984-05-02
DE3067664D1 (en) 1984-06-07
JPS6047479B2 (ja) 1985-10-22

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