JPS5833792U - metering pump - Google Patents

metering pump

Info

Publication number
JPS5833792U
JPS5833792U JP12799881U JP12799881U JPS5833792U JP S5833792 U JPS5833792 U JP S5833792U JP 12799881 U JP12799881 U JP 12799881U JP 12799881 U JP12799881 U JP 12799881U JP S5833792 U JPS5833792 U JP S5833792U
Authority
JP
Japan
Prior art keywords
hole
valve body
metering pump
communicates
pressure accumulation
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP12799881U
Other languages
Japanese (ja)
Other versions
JPS6139111Y2 (en
Inventor
大槻　洋一
Original Assignee
株式会社小松製作所
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 株式会社小松製作所 filed Critical 株式会社小松製作所
Priority to JP12799881U priority Critical patent/JPS5833792U/en
Publication of JPS5833792U publication Critical patent/JPS5833792U/en
Application granted granted Critical
Publication of JPS6139111Y2 publication Critical patent/JPS6139111Y2/ja
Granted legal-status Critical Current

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Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図から第５図は従来のメータリングポンプを示すも
ので、第１図は正面図、第２図は一部破断側面図、第３
図は第１図の■−■線に沿う断面矢視図、第４図は第２
図のＩＶ−ＩＶ線に沿う断面矢視図、第５図は第１図の
■−■線に沿う断面矢視図、第６図は本考案の実施例を
示す断面図である。 １は弁体、２は回転スプール、５は流入孔、６は吸入孔
、７は蓄圧室、８はピストン、９は背圧室、１０は流出
孔、１１は吐出孔、１４．１５は細溝、１６はドレン孔
。 第３図 第４図Figures 1 to 5 show a conventional metering pump, with Figure 1 being a front view, Figure 2 being a partially cutaway side view, and Figure 3 being a partially cutaway side view.
The figure is a cross-sectional view taken along the line ■-■ in Figure 1, and Figure 4 is a cross-sectional view along the
FIG. 5 is a cross-sectional view taken along the line IV-IV in the figure, FIG. 5 is a cross-sectional view taken along the line ■-■ in FIG. 1, and FIG. 6 is a cross-sectional view showing an embodiment of the present invention. 1 is a valve body, 2 is a rotary spool, 5 is an inflow hole, 6 is a suction hole, 7 is a pressure accumulation chamber, 8 is a piston, 9 is a back pressure chamber, 10 is an outflow hole, 11 is a discharge hole, 14.15 is a narrow Groove, 16 is a drain hole. Figure 3 Figure 4

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 軸心部に蓄圧室７を有し、この蓄圧室７に連通する流入
孔５と流出孔１０とを軸方向に位置をずらせて設けた回
転スプール２を弁体１内で回転することにより、弁体１
に設けた吸入孔６が上記流入孔５に、また弁体１に設け
た吐出孔１１が上記流出孔１０に交互に連通し、また蓄
圧室７に嵌合したピストン８の背面を、吸入孔６に連通
した背圧室９に対向させてなるメータリングポンプにお
いて、回転スプール２の流出孔１１をはさむ両側に円周
方向に細溝１４，１５を設け、また弁体１に、この両側
４１２，１３に連通ずるドレン孔１６を設けたことを特
徴とするメータリングポンプ。By rotating the rotary spool 2 within the valve body 1, which has a pressure accumulation chamber 7 at its axial center and has an inflow hole 5 and an outflow hole 10 communicating with the pressure accumulation chamber 7 shifted in the axial direction. Valve body 1
The suction hole 6 provided in the valve body 1 alternately communicates with the inflow hole 5, and the discharge hole 11 provided in the valve body 1 communicates with the outflow hole 10, and the back surface of the piston 8 fitted in the pressure accumulation chamber 7 is connected to the inlet hole 5. In the metering pump, narrow grooves 14 and 15 are provided in the circumferential direction on both sides of the outflow hole 11 of the rotary spool 2, and the valve body 1 is provided with narrow grooves 14 and 15 on both sides of the outflow hole 11 of the rotary spool 2. , 13. A metering pump characterized in that a drain hole 16 is provided which communicates with .
JP12799881U 1981-08-31 1981-08-31 metering pump Granted JPS5833792U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12799881U JPS5833792U (en) 1981-08-31 1981-08-31 metering pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12799881U JPS5833792U (en) 1981-08-31 1981-08-31 metering pump

Publications (2)

Publication Number Publication Date
JPS5833792U true JPS5833792U (en) 1983-03-04
JPS6139111Y2 JPS6139111Y2 (en) 1986-11-10

Family

ID=29921711

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12799881U Granted JPS5833792U (en) 1981-08-31 1981-08-31 metering pump

Country Status (1)

Country Link
JP (1) JPS5833792U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6046139U (en) * 1983-09-07 1985-04-01 株式会社クボタ sand washing equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6046139U (en) * 1983-09-07 1985-04-01 株式会社クボタ sand washing equipment

Also Published As

Publication number Publication date
JPS6139111Y2 (en) 1986-11-10

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