JPH0438913B2 - - Google Patents
Info
- Publication number
- JPH0438913B2 JPH0438913B2 JP59226953A JP22695384A JPH0438913B2 JP H0438913 B2 JPH0438913 B2 JP H0438913B2 JP 59226953 A JP59226953 A JP 59226953A JP 22695384 A JP22695384 A JP 22695384A JP H0438913 B2 JPH0438913 B2 JP H0438913B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve body
- wing
- spring
- flow path
- 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.)
- Expired - Lifetime
Links
- 239000000446 fuel Substances 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims 1
- 239000000463 material Substances 0.000 description 5
- 229920002449 FKM Polymers 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
- F04B17/04—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids
- F04B17/042—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids the solenoid motor being separated from the fluid flow
-
- 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
- F04B53/1022—Disc valves having means for guiding the closure member axially
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は電気燃料ポンプ及びポンプの非作動時
に出口を閉塞する出口弁に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electric fuel pump and an outlet valve that closes the outlet when the pump is not in operation.
営業用車両及び乗用車に使用される燃料ポンプ
の分野において、動力は一般的には電動であるが
機械的であつてもよい。従来かかるポンプには、
はね返り式逆止め弁型式の出口弁を設けた。この
場合弁を開くのに必要な所定圧力を得るようにば
ねを調整する。加うるに弁は、気化器への燃料流
を妨止するようにポンプの非作動時に閉鎖する。
かくて、事故の場合には、望ましからざる燃料の
漏出を妨止するようにポンプは完全に閉鎖する。
In the field of fuel pumps used in commercial vehicles and passenger cars, the power is generally electric, but may also be mechanical. Conventionally, such pumps have
A spring-back check valve type outlet valve was provided. In this case, the spring is adjusted to obtain the predetermined pressure necessary to open the valve. In addition, the valve closes when the pump is not operating to prevent fuel flow to the carburetor.
Thus, in the event of an accident, the pump closes completely to prevent unwanted fuel leakage.
ポンプの全容量が出力弁を通過可能でなければ
ならないので、ひとたび弁が開口すれば、抵抗を
出来る限り少なくしなければならない。 Since the entire volume of the pump must be able to pass through the output valve, once the valve is open the resistance must be as low as possible.
本発明の目的は、弁の位置とは無関係に出流を
円滑にするようにした構造の改良型出口弁を提供
することである。更に本発明の目的は、弁を閉鎖
位置に附勢するコイルばねを折りたたむことによ
つて流れを妨げないような構造の弁を提供するこ
とである。
SUMMARY OF THE INVENTION It is an object of the present invention to provide an improved outlet valve whose construction provides smooth exit regardless of valve position. It is a further object of the present invention to provide a valve that does not impede flow by collapsing the coil spring that biases the valve into the closed position.
本発明の他の特徴及び利点については、当業者
が本発明の実施を可能ならしめるために本発明の
原理を示す本発明の好適実施例を添付の図面を参
照して詳述する。
Other features and advantages of the invention will be described in detail with reference to the accompanying drawings, in which preferred embodiments of the invention are illustrative of the principles of the invention to enable those skilled in the art to practice the invention.
1982年10月５日付の米国特許第4352641号には
出口弁を備える電気燃料ポンプが記載されてい
る。本文第１図に示す出口管及びニツプル１０は
燃料ポンプ本体に取付けられ、燃料流出ライン用
の連結端部を構成する。管１０には出口用中ぐり
部１２を設け、該中ぐり部は広がつて例えば約
60゜の開先角度を有する先細弁座１４となる。該
弁座は、管１０の末端部と隣接する平面に延長す
る更に大きな中ぐり部１６にて終結し、該管の末
端部に開口する凹部１８となつて広がる。 U.S. Pat. No. 4,352,641, dated October 5, 1982, describes an electric fuel pump with an outlet valve. The outlet pipe and nipple 10 shown in Figure 1 of the text is attached to the fuel pump body and constitutes the connecting end for the fuel outflow line. The tube 10 is provided with an outlet bore 12 which extends to e.g.
This results in a tapered valve seat 14 having a bevel angle of 60 degrees. The valve seat terminates in a larger bore 16 extending in a plane adjacent the distal end of the tube 10 and widens into a recess 18 opening into the distal end of the tube.
第２図には弁部材２０を側面図で示す。該弁部
材の先細端部２２の開先角度は約90゜であるが、
丸くなつた先端部２４を有する。先細端部２２
は、例えば約2.39mm（0.094″）の半径の球形区域
２６と合体する。該球形区域は小径部を介して弁
部材２０の円筒部２８となる。該円筒部は３０に
て該弁部材の軸線に対して垂直な平面にて終結す
る。 FIG. 2 shows the valve member 20 in a side view. The bevel angle of the tapered end 22 of the valve member is approximately 90°;
It has a rounded tip 24. Tapered end 22
merges with a spherical section 26 of radius, e.g., about 0.094". The spherical section becomes the cylindrical section 28 of the valve member 20 through a small diameter section. It terminates in a plane perpendicular to the axis.
該弁部材には４個の半径方向翼部４０を形成す
るが、該翼部は球状区域２６にてはじまり、第３
図に示す平面Ａ−Ａまで後方に延長する。翼部４
０は円筒本体２８に到るまで小径寸法部を有し、
次に平面３０の後方にて該軸線の方へ延長して相
互に合体する。翼部の前方部は該軸線に対して約
30゜の角度を示す。点R1及びR2における半径は約
0.51mm（0.020″）であることが望ましく、先端部
２４も同様な半径を有することが出来る。実例と
して示す図面の縮尺は実寸の約10倍であり、円筒
部２８の直径は約4.68mm（0.184″）乃至約4.88mm
（0.192″）である。翼部４０の前端部４２の半径
は約2.39mm（0.094″）で、弁座１４とほぼ同じ角
度で下方に先細になつている。 The valve member is formed with four radial wings 40 starting at the spherical section 26 and ending at the third radial wing.
Extending rearwardly to plane A-A as shown in the figure. Wing part 4
0 has a small diameter portion up to the cylindrical body 28,
They then extend towards the axis behind the plane 30 and merge into each other. The forward part of the wing is approximately
Indicates an angle of 30°. The radius at points R 1 and R 2 is approximately
The diameter of the cylindrical portion 28 is preferably approximately 4.68 mm (0.020"), and the tip 24 may have a similar radius. The illustrative drawings are to scale approximately 10 times actual size; 0.184″) to approx. 4.88mm
(0.192″). The radius of the forward end 42 of the wing portion 40 is approximately 2.39 mm (0.094″) and tapers downward at approximately the same angle as the valve seat 14.
各翼部４０に形成する肩部４４には、コイルば
ね用の座部を円周に設ける。該肩部の後方におい
て、翼部４０は４６にて先細になり、平面Ａ…Ａ
にて扁平端部４８となる。 A shoulder portion 44 formed on each wing portion 40 is provided with a seat portion for a coil spring around the circumference. Behind the shoulder, the wings 40 taper at 46 into planes A...A
A flat end portion 48 is formed at this point.
コイルばね５０は翼部４０の軸方向部５１に着
座し、該ばねの前端部は肩部４４に対抗し、他端
は、燃料を自由に流すための開口部を設けるべく
穿孔した凹部１８に押し込めた保持部材５２によ
つて保持される。 A coil spring 50 is seated in the axial portion 51 of the wing 40, the forward end of the spring opposing the shoulder 44 and the other end in a recess 18 drilled to provide an opening for free flow of fuel. It is held by the pushed-in holding member 52.
第１図に示す組立体の全体図において弁２０は
閉鎖位置にある。該位置において、弁の球形部は
円錐形弁座１４と接触する。弁部材を形成するの
に好適な材料は、例えばビトン（Viton商標）の
如き硬度が約70デユロメータ（durometer）のプ
ラスチツク材である。かくて、弁座１４との接触
は理論的には線接触であるが、かかる材質の弁を
用いることによつて該接触は材料の特性に応じた
度合で強化される。 In the general view of the assembly shown in FIG. 1, valve 20 is in the closed position. In this position, the bulbous part of the valve is in contact with the conical valve seat 14. A suitable material for forming the valve member is a plastic material having a hardness of about 70 durometer, such as Viton®. Thus, although the contact with the valve seat 14 is theoretically a line contact, by using a valve made of such material, the contact is strengthened to a degree that depends on the properties of the material.
中ぐり部内に加圧燃料がある時、弁２０はばね
５０の強度に応じて所定の圧力にて開口する。弁
が開口すると、弁の先端部周辺及び翼部４０相互
間の本体部２８周辺における燃料の流動が可能と
なる。第２図の流動矢印は前記流動ラインを示
す。第２図に示す如く、ばね５０が圧縮されてい
る時でさえ、弁を通過する流れは、ばね内部にて
出口１８へ指向する故に抑圧されることはない。
先端部２２，２４及び２６と翼部４０の前端部４
２の形状の故に、燃料流は円滑なラインを描く。
通常翼部４０の縁は弁室を形成する中ぐり部１６
の壁から僅かに隔設されるが、該翼部は側部運動
時に弁を中心に位置決めする。 When there is pressurized fuel in the bore, the valve 20 opens at a predetermined pressure depending on the strength of the spring 50. When the valve opens, fuel flow is allowed around the tip of the valve and around the body 28 between the wings 40. The flow arrows in FIG. 2 indicate the flow lines. As shown in FIG. 2, even when spring 50 is compressed, flow through the valve is not inhibited because it is directed to outlet 18 within the spring.
Tips 22, 24 and 26 and front end 4 of wing 40
2, the fuel flow follows a smooth line.
Normally, the edge of the wing section 40 has a hollow section 16 that forms a valve chamber.
Although slightly spaced from the wall of the valve, the wings center the valve during lateral movement.
翼部の外縁と中ぐり部１６の内径との間の間隙
は最小限に保持されるが、炭化水素が存在する場
合に膨脹しない材料は殆んどないはずであること
を理解すべきである。例えば直径6.3mm（0.248″）
の翼部は約6.45mm（0.254″）まで膨脹する。中ぐ
り部１６の内径が約6.6mm（0.260″）の場合、円滑
に作動するのに適した間隙が残される。翼部の縁
と中ぐり部の壁との接触は本発明の構造の特性と
見なされる。弁が揺動する傾向にあると、翼部と
中ぐり部とが接触して弁の動きを安定化する。か
くて、かかる安定化を容易ならしめるためには翼
部と中ぐり部との間に幾分摩擦がある方が望まし
い。 It should be understood that the gap between the outer edge of the wing and the inner diameter of the bore 16 is kept to a minimum, but there should be little material that will not expand in the presence of hydrocarbons. . For example, diameter 6.3mm (0.248″)
The wings expand to approximately 6.45 mm (0.254"). If the internal diameter of the bore 16 is approximately 6.6 mm (0.260"), a suitable clearance is left for smooth operation. Contact between the edge of the wing and the wall of the borehole is considered a feature of the structure of the invention. If the valve tends to rock, the wings and the bores come into contact to stabilize the valve movement. Thus, it is desirable to have some friction between the wings and the bore to facilitate such stabilization.
ばね５０の直径は翼部４０の直径を下回るよう
に保持されるので、横方向運動による中ぐり部１
６との金属対金属の接触は存在しない。 The diameter of the spring 50 is kept below the diameter of the wing 40 so that the boring part 1 due to lateral movement
There is no metal-to-metal contact with 6.
第１図はポンプ本体にて閉鎖位置にある出口弁
の断面図、第２図は開位置にある弁を示す第１図
と同様な図面、第３図は弁部材の側面図、第４図
は弁部材の先端部の端面図、そして第５図は該弁
部材の下流端部の端面図である。
１０……管、１２……出口中ぐり部、１４……
弁座、１６……中ぐり部、１８……凹部、２０…
…弁部材、２２……弁部材の先細端部、２４……
丸形先端部、２６……球形区域、２８……円筒
部、３０……平面、４０……翼部、４４……肩
部、５０……コイルばね、５２……保持位置。
Figure 1 is a sectional view of the outlet valve in the closed position of the pump body, Figure 2 is a view similar to Figure 1 showing the valve in the open position, Figure 3 is a side view of the valve member, and Figure 4. 5 is an end view of the distal end of the valve member, and FIG. 5 is an end view of the downstream end of the valve member. 10...Pipe, 12...Outlet boring part, 14...
Valve seat, 16... Boring part, 18... Recessed part, 20...
...Valve member, 22...Tapered end portion of valve member, 24...
rounded tip, 26... spherical section, 28... cylindrical section, 30... plane, 40... wing section, 44... shoulder section, 50... coil spring, 52... holding position.
Claims (1)
ポンプ等の出口弁であつて、 (a) 集束して流路となる壁と面取して形成された
環状弁座１４とを有する弁中ぐり部を形成した
管１０と、 (b) (1) 該弁中ぐり部の面取部位に接触して前記
流路を閉塞するように寸法決めされた球状部
２６と、該球状部に合体する円錐形先端部２
２とを一端に有し、且つ軸線に垂直な平面壁
３０を他端に有する全体として中実円筒形の
弁本体２８と、 (2) 該弁本体上に形成され、該弁本体が閉塞位
置にある時に前記弁中ぐり部の面取部位に接
触しないように一端４２を面取し、前記平面
壁の後部に延長して内向きに該弁本体の軸線
で合体する半径方向翼部４０と、該平面壁の
後方で該翼部に形成され、該弁本体よりも大
きな直径で内向きに終結する肩部４４とを包
含する 前記弁中ぐり部内に設けられる弁２０と、 (c) 一端を前記肩部４４に着座させ、他端を前記
弁中ぐり部内に着座させて前記弁本体２８の先
端部を前記弁座に対して付勢させ、該弁本体よ
りも大きな内径を有し、前記弁が開いた時に前
記流路を通る流体が該弁本体の周囲から前記翼
部４０の間を経てばね中央部を通り前記弁中ぐ
り部へ抜けるためのコイルばね５０と を包含することを特徴とする前記出口弁。[Scope of Claims] 1. An outlet valve for an electric fuel pump or the like that is biased by a spring and operated in one direction, which includes: (a) an annular valve seat formed by chamfering a wall that converges to form a flow path; (b) (1) a spherical portion 26 dimensioned to contact a chamfered portion of the valve bore and close the flow path; , a conical tip 2 that merges into the spherical part
2 at one end and a flat wall 30 perpendicular to the axis at the other end; one end 42 is chamfered so as not to come into contact with the chamfered part of the valve boring part when the valve is in position, and a radial wing part 40 extends to the rear of the plane wall and joins inwardly at the axis of the valve body. a shoulder 44 formed in the wing behind the planar wall and terminating inwardly at a diameter greater than the valve body; (c) one end; is seated on the shoulder portion 44 and the other end is seated within the valve bore portion to urge the distal end portion of the valve body 28 against the valve seat, and has an inner diameter larger than the valve body; and a coil spring 50 for allowing fluid passing through the flow path from the periphery of the valve body, between the wing portions 40, through the center portion of the spring, and into the valve bore portion when the valve is opened. The outlet valve characterized in:
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US55559083A | 1983-11-25 | 1983-11-25 | |
| US555590 | 1983-11-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60119365A JPS60119365A (en) | 1985-06-26 |
| JPH0438913B2 true JPH0438913B2 (en) | 1992-06-25 |
Family
ID=24217857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22695384A Granted JPS60119365A (en) | 1983-11-25 | 1984-10-30 | Fuel outlet valve for pump |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS60119365A (en) |
| DE (1) | DE3441282A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4211981B2 (en) * | 2003-12-18 | 2009-01-21 | 本田技研工業株式会社 | Fuel strainer device |
| US9027594B2 (en) * | 2012-03-30 | 2015-05-12 | Ti Group Automotive Systems, L.L.C. | Fuel system valve assembly |
| US10323761B2 (en) | 2016-08-26 | 2019-06-18 | The Boeing Company | Guide vane check valves |
| US10533666B2 (en) | 2017-01-12 | 2020-01-14 | The Boeing Company | Sealing structures and valve assemblies including the sealing structures |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56116961A (en) * | 1980-02-16 | 1981-09-14 | Aisin Seiki Co Ltd | One-way valve for fluid |
| JPS57184770A (en) * | 1981-04-24 | 1982-11-13 | Bosch Gmbh Robert | Check valve for fuel feeder |
| JPS584856B2 (en) * | 1977-12-14 | 1983-01-28 | 株式会社トキメック | transmission circuit device |
| JPS6023370B2 (en) * | 1980-05-20 | 1985-06-07 | 松下電器産業株式会社 | power circuit |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1722960U (en) * | 1955-03-15 | 1956-05-24 | Hans Kreidel | CONE VALVE, IN PARTICULAR NON-RETURN VALVE. |
| JPS584856U (en) * | 1981-07-01 | 1983-01-12 | 「さい」藤 俊彦 | non-return valve |
| JPS6023370U (en) * | 1983-07-22 | 1985-02-18 | 北海道水道機材株式会社 | backflow prevention valve |
-
1984
- 1984-10-30 JP JP22695384A patent/JPS60119365A/en active Granted
- 1984-11-12 DE DE19843441282 patent/DE3441282A1/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS584856B2 (en) * | 1977-12-14 | 1983-01-28 | 株式会社トキメック | transmission circuit device |
| JPS56116961A (en) * | 1980-02-16 | 1981-09-14 | Aisin Seiki Co Ltd | One-way valve for fluid |
| JPS6023370B2 (en) * | 1980-05-20 | 1985-06-07 | 松下電器産業株式会社 | power circuit |
| JPS57184770A (en) * | 1981-04-24 | 1982-11-13 | Bosch Gmbh Robert | Check valve for fuel feeder |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60119365A (en) | 1985-06-26 |
| DE3441282A1 (en) | 1985-06-13 |
| DE3441282C2 (en) | 1987-12-03 |
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