JPS60169685A

JPS60169685A - Pump

Info

Publication number: JPS60169685A
Application number: JP59025188A
Authority: JP
Inventors: Kenzo Hoshino; 星野　謙三
Original assignee: Individual
Current assignee: Individual
Priority date: 1984-02-15
Filing date: 1984-02-15
Publication date: 1985-09-03

Abstract

PURPOSE:To obtain a pump which seals fluid with a small sliding resistance and resists a high pressure by pressing a variable cylindrical seal in parallel to a shaft concentric to an inner cylinder onto a seal guide in parallel to the shaft and pushing-in said seal into a leak gap. CONSTITUTION:A variable cylindrical seal 10 is pressed onto a funnel-shaped seal guide 8 in conical form in the seal part by a spring 12 and a guide 13, and pressed into a leak gap 28 by the action of the conical surface, and the gap 28 between the seal guide 8 and a piston 2 can be closely sealed, and the part between the seal guide 8 and a cylinder 2 can be closely sealed by a seal 9 and a pressing flange 7. If a hole 11 is formed onto the guide 13, seal 10, etc., the seal 10 is applied only with the force in prallel to a shaft. With such constitution, a pump which develops sealing action with a small sliding resistance and resists a high pressure can be obtained.

Description

【発明の詳細な説明】この発明は従来のポンプではグランド型、円板’Ｊｌ、
ｖ型、ｕｉ等のシールがピストン、或は、回転軸に対し
垂直に押し付けられているので摩耗が多く、且つ、高圧
に対して摺動抵抗が大きいので、性能の良い高圧ポンプ
が得られなかった点を改良し、軸に平行な円筒形シール
を軸に平行な方向に押し付けて、摺動抵抗を少なくして
シールを行い、高圧にも耐えるポンプを提供するための
ものである。これを図によって説明すると、第１図は往
復動のポンプの１例について示しであるが、外筒シリン
ダー１内に内筒ピストン２が方向１５に往復運動を行い
、人口３から逆止弁５を通してシリンダー空間１４に入
った流体を逆止弁５、通路６を経て吐出口４に圧し出す
。シール部には円錐形をした漏斗状のシールガイド８に
可変形、円筒形シール１０カバネ１２、ガイド１３によ
って押し付けられ、円錐面の作用で漏洩間隙２８に押し
込まれるので、シールガイド８とピストン２の間の間隙
２８を密封し、シールガイド８とシリンダー２の間はシ
ール９、押えフランジ７によって密封することが出来る
。このとき、孔１１をガイド１３、シール１０等にあけ
ておけばシール１０は軸に平行な方向の力だけを受ける
様になる。第２図は回転ポンプの場合を示し、ローター
１７がモーター１９、ベアリング２０゜軸１８によりス
テーター１６内で回転し、人Ｌ１５より入った流体を出
口２６から圧し出す。この場合も前述の往復動のポンプ
と同様に漏斗状のシールガイド２４に円筒形可変Ｊレシ
ール２２）５．’押し付けられ、バネ２２により押し付
けられて漏洩細隙２１を塞ぐので流体は漏洩しない。２
７はポンプ装置の伜である。DETAILED DESCRIPTION OF THE INVENTION This invention is based on a conventional pump that uses a gland type, a disc 'Jl,
V-type, UI, etc. seals are pressed perpendicularly to the piston or rotating shaft, which causes a lot of wear, and the sliding resistance against high pressure is large, making it impossible to obtain a high-performance high-pressure pump. The purpose of this invention is to provide a pump that can withstand high pressure by pressing a cylindrical seal parallel to the axis in a direction parallel to the axis to reduce sliding resistance and sealing. To explain this with a diagram, FIG. 1 shows an example of a reciprocating pump, in which an inner piston 2 reciprocates in a direction 15 in an outer cylinder 1, and a check valve 5 The fluid that has entered the cylinder space 14 through the check valve 5 and the passage 6 is forced out to the discharge port 4. At the seal part, a variable-shaped, cylindrical seal 10 is pressed by a funnel-shaped seal guide 8 having a conical shape, a cover spring 12, and a guide 13, and is pushed into a leakage gap 28 by the action of the conical surface, so that the seal guide 8 and piston 2 The space between the seal guide 8 and the cylinder 2 can be sealed by the seal 9 and the presser flange 7. At this time, if the hole 11 is made in the guide 13, the seal 10, etc., the seal 10 will receive only the force in the direction parallel to the axis. FIG. 2 shows the case of a rotary pump, in which a rotor 17 is rotated within a stator 16 by a motor 19 and a bearing 20° shaft 18, and the fluid entering from the person L15 is forced out from the outlet 26. In this case as well, similar to the reciprocating pump described above, a cylindrical variable J reseal 22) is attached to the funnel-shaped seal guide 24. 'The fluid is not leaked because it is pressed by the spring 22 and closes the leakage gap 21. 2
7 is the upper side of the pump device.

[Brief explanation of drawings]

第１図は往復ポンプの側面図。第２図は回転ポンプの側面図である。１・・・・・外筒Ｓ２・・・・・内筒・３・・・・・人
口・４・・・・・出口・５・・・・・逆止弁・６・・・
・・通路Ｓ７・・・・・押えフランジ・８・・・・・漏
斗状シールガイド、９．、、、、シール、１０．、、、
、円筒形、口ｆ変形シール、１１．、、、、孔、１２．
、、、、バネ、１３゜１１１．ガイ　ド、１４．、、。、シリンダー空間、１５．、、、、往復方向、１６．、
、、、ステーター、１’７．、、、、ローター、１Ｂ、
、、、、軸、１９．、、、、モーター、２０．、、、、
ベアリン々゛、２１．、、、、漏洩間隙、２２．、、、
、円筒形ロエ変形シール、２３．、、、、バネ、２４．
、、、、漏斗状シールガイド、２５．、、、、入口、　
２６．、、、、出口、２７．、、、、枠、２８．、、、
、漏洩間隙。Figure 1 is a side view of the reciprocating pump. FIG. 2 is a side view of the rotary pump. 1... Outer cylinder S2... Inner cylinder 3... Population 4... Outlet 5... Check valve 6...
... Passage S7 ... Presser flange 8 ... Funnel-shaped seal guide, 9. , , , Seal, 10. ,,,
, cylindrical, mouth f deformed seal, 11. ,,,hole,12.
,,, Spring, 13°111. Guide, 14. ,,. , cylinder space, 15. , , , Reciprocating direction, 16. ,
,,, stator, 1'7. ,,,rotor, 1B,
, , ,axis, 19. , , , Motor, 20. ,,,,
Bearins, 21. , , , Leakage gap, 22. ,,,
, cylindrical Loe variant seal, 23. , , , Spring, 24.
, , , funnel-shaped seal guide, 25. ,,,,entrance,
26. ,,,,exit,27. , , ,Frame, 28. ,,,
, leakage gap.

Claims

[Claims]

(1) In a type of pump that presses fluid through relative reciprocating motion between an inner cylinder and an outer cylinder, a funnel-shaped seal guide is installed on the high-pressure side of the gap where the fluid flows shallowly into the cylinder through a cylindrical gap that performs relative movement. A reciprocating pump characterized in that a variable cylindrical seal substantially concentric with an inner cylinder is pressed against a seal guide and pushed into a gap in shallow water to seal fluid.

(2) In a type of pump that pumps fluid by interlocking the relative rotation of a rotor and slurter, a funnel-shaped seal guide is installed on the high-pressure side of the gap where the fluid flows shallowly from the inside of the pump to the outside through a cylindrical gap that performs relative movement. A rotary pump characterized in that a cylindrical variable-shaped cylinder having an axis substantially the same as the rotational axis of a rotor is pressed against a seal guide to seal fluid by pushing it into a gap in shallow water.