JP2005048652A - Exhaust check valve for automobile vacuum pump - Google Patents

Exhaust check valve for automobile vacuum pump Download PDF

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Publication number
JP2005048652A
JP2005048652A JP2003281151A JP2003281151A JP2005048652A JP 2005048652 A JP2005048652 A JP 2005048652A JP 2003281151 A JP2003281151 A JP 2003281151A JP 2003281151 A JP2003281151 A JP 2003281151A JP 2005048652 A JP2005048652 A JP 2005048652A
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Prior art keywords
valve body
check valve
opening
exhaust
vacuum pump
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Pending
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JP2003281151A
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Japanese (ja)
Inventor
Koji Kinoshita
孝司 木下
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2003281151A priority Critical patent/JP2005048652A/en
Priority to KR1020030080952A priority patent/KR20050013483A/en
Priority to DE10357805A priority patent/DE10357805B4/en
Priority to FR0450046A priority patent/FR2858369B1/en
Publication of JP2005048652A publication Critical patent/JP2005048652A/en
Priority to KR1020060004840A priority patent/KR100582823B1/en
Pending legal-status Critical Current

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    • 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
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • F04B39/102—Adaptations or arrangements of distribution members the members being disc valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/57—Seals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2250/00—Geometry
    • F05B2250/10—Geometry two-dimensional
    • F05B2250/19—Geometry two-dimensional machined; miscellaneous
    • F05B2250/192—Geometry two-dimensional machined; miscellaneous beveled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2250/00—Geometry
    • F05B2250/20—Geometry three-dimensional
    • F05B2250/29—Geometry three-dimensional machined; miscellaneous
    • F05B2250/292—Geometry three-dimensional machined; miscellaneous tapered
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2280/00—Materials; Properties thereof
    • F05B2280/10—Inorganic materials, e.g. metals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide an exhaust check valve for an automobile vacuum pump, which is easily mounted and has reduced exhaust resistance by using a swing type valve element. <P>SOLUTION: The exhaust check valve comprises a check valve body 2 sealed in an exhaust port, an opening portion 2a provided at one end of the check valve body 2, a supporting member 4 protruded from the check valve body 2 to a first direction A, and a valve element 3 rockingly provided on the supporting member 4. The valve element 3 abuts on the opening portion 2a with its weight, and rocks with fluid flowing in the first direction A to open the opening portion 2a and rocks with the fluid trying to flow from an outlet 1b of the exhaust port into an inlet 1a thereof in a second direction to close the opening portion 2a. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

この発明は、自動車用バキュームポンプの排気口に内蔵された排気逆止弁に関し、特に、スイングタイプの弁体を用いることにより、排気抵抗を低減するとともに、コンパクトで取付けを容易にした自動車用バキュームポンプの排気逆止弁に関するものである。   The present invention relates to an exhaust check valve built in an exhaust port of a vacuum pump for an automobile, and in particular, by using a swing type valve body, the exhaust resistance is reduced, and the vacuum for the automobile is compact and easy to install. The present invention relates to an exhaust check valve for a pump.

従来の自動車用バキュームポンプの排気逆止弁は、排気口の一端に設けられた弁体と、弁体の開度を制限するガイドプレートとを備え、流体が排気口の一端から他端に流れる場合には弁体が閉じ、流体が排気口の他端から一端に流れる場合には弁体が開くようになっている（たとえば、特許文献１参照）。   A conventional exhaust check valve for an automotive vacuum pump includes a valve body provided at one end of an exhaust port and a guide plate for limiting the opening of the valve body, and fluid flows from one end of the exhaust port to the other end. In this case, the valve body is closed, and when the fluid flows from the other end of the exhaust port to one end, the valve body is opened (see, for example, Patent Document 1).

上記特許文献１において、弁体は、開放時の流体抵抗を低減するために、薄いバネ材により形成されているが、変形量が増大すると弾性機能が損なわれるので、ガイドプレートが設けられている。この場合、弁体の上面がガイドプレートで覆われているので、弁体の前方部に遮蔽物を配置せずに前方部を開放させる必要がある。また、弁体の開度を確保するためには、係止位置から弁体先端部までの長さを比較的大きく設定する必要がある。   In Patent Document 1, the valve body is formed of a thin spring material in order to reduce the fluid resistance at the time of opening. However, since the elastic function is impaired when the amount of deformation increases, a guide plate is provided. . In this case, since the upper surface of the valve body is covered with the guide plate, it is necessary to open the front part without arranging a shield in the front part of the valve body. Moreover, in order to ensure the opening degree of a valve body, it is necessary to set the length from a locking position to a valve body front-end | tip part comparatively large.

独国特許出願公開第ＤＥ１９５２４９０６Ａ１号明細書（図１）German Patent Application Publication No. DE19524906A1 (FIG. 1)

従来の自動車用バキュームポンプの排気逆止弁は以上のように、弁体の前方部を開放させる必要があるうえ、係止位置から弁体先端部までの長さを比較的大きく設定する必要があるので、設計上の制約を受けるという問題点があった。   As described above, the exhaust check valve of the conventional vacuum pump for automobiles needs to open the front part of the valve body, and needs to set the length from the locking position to the valve body tip part relatively large. There was a problem that the design was restricted.

この発明は上記のような問題点を解決するためになされたもので、コンパクトで応力のかからない構成のスイングタイプの弁体を用いることにより、取付けが容易で排気抵抗を低減した自動車用バキュームポンプの排気逆止弁を得ることを目的とする。   The present invention has been made to solve the above-described problems. By using a swing-type valve body having a compact and stress-free configuration, an automotive vacuum pump that can be easily mounted and has reduced exhaust resistance is provided. The purpose is to obtain an exhaust check valve.

この発明に係る自動車用バキュームポンプの排気逆止弁は、自動車用バキュームポンプの排気口内に設けられ、排気口の入口から出口に向かう第１方向の流体のみを通過させる自動車用バキュームポンプの排気逆止弁において、排気口の内壁に密封されて固定された逆止弁本体と、逆止弁本体の一端に設けられた開口部と、逆止弁本体から第１方向に向けて突出するように設けられたサポート部材と、サポート部材に対して揺動自在に設けられた弁体とを備え、弁体は、弁体の自重により開口部に衝合して開口部を封止するとともに、第１方向に流れる流体により、第１方向に揺動して開口部を開放し、排気口の出口から入口に向かって第２方向に流れようとする流体により、第２方向に揺動して開口部に密着し、開口部を閉成するものである。   An exhaust check valve for an automotive vacuum pump according to the present invention is provided in an exhaust port of an automotive vacuum pump, and the exhaust reverse valve of the automotive vacuum pump that allows passage of only fluid in a first direction from the inlet to the outlet of the automotive vacuum pump. In the stop valve, a check valve body sealed and fixed to the inner wall of the exhaust port, an opening provided at one end of the check valve body, and projecting from the check valve body in the first direction And a valve body provided swingably with respect to the support member. The valve body abuts the opening by its own weight and seals the opening. The fluid that flows in one direction swings in the first direction to open the opening, and the fluid that flows in the second direction from the outlet of the exhaust port toward the inlet swings in the second direction and opens. Closely closes the opening and closes the opening .

この発明によれば、排気口の出口から入口に向かって第２方向に流れようとする流体により、第２方向に揺動して開口部に密着し、開口部を閉成するようにしたので、コンパクトで応力のかからない構成のスイングタイプの弁体を用いて、取付けが容易で排気抵抗を低減した自動車用バキュームポンプの排気逆止弁が得られる効果がある。   According to this invention, the fluid that tends to flow in the second direction from the outlet of the exhaust port toward the inlet is swung in the second direction so as to be in close contact with the opening, thereby closing the opening. There is an effect that an exhaust check valve for a vacuum pump for an automobile, which is easy to mount and has reduced exhaust resistance, can be obtained by using a swing type valve body having a compact and stress-free configuration.

実施の形態１．
以下、図面を参照しながら、この発明の実施の形態１について詳細に説明する。
図１はこの発明の実施の形態１を示す側断面図である。
図１において、自動車用バキュームポンプ（以下、単に「バキュームポンプ」という）の本体１の排気口内には、排気口の入口１ａから出口１ｂに向けて矢印Ａ方向に流れる流体のみを通過させるために、排気逆止弁が設けられている。 Embodiment 1 FIG.
Hereinafter, the first embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a side sectional view showing Embodiment 1 of the present invention.
In FIG. 1, only the fluid flowing in the direction of arrow A from the inlet 1a to the outlet 1b of the exhaust port is allowed to pass through the exhaust port of the main body 1 of the vacuum pump for automobiles (hereinafter simply referred to as “vacuum pump”). An exhaust check valve is provided.

排気逆止弁は、排気口の内壁に密封されて固定された逆止弁本体２と、逆止弁本体２の一端に設けられた開口部２ａと、開口部２ａを開閉するスイングタイプの弁体３と、逆止弁本体２から矢印Ａ方向（第１方向）に向けて突出するように設けられたサポート部材４とを備えている。   The exhaust check valve includes a check valve body 2 sealed and fixed to the inner wall of the exhaust port, an opening 2a provided at one end of the check valve body 2, and a swing type valve that opens and closes the opening 2a. A body 3 and a support member 4 provided so as to protrude from the check valve body 2 in the direction of arrow A (first direction) are provided.

弁体３は、サポート部材４に対して揺動自在に設けられ、通常は、弁体３の自重により開口部２ａに衝合して開口部２ａを封止している。
また、弁体３は、矢印Ａ方向に流れる流体により、矢印Ａ方向と一致する矢印Ｂ方向に揺動して開口部２ａを開放し、排気口の出口１ｂから入口１ａに向かって逆方向に流れようとする流体により、逆方向に揺動して開口部２ａに密着し、開口部２ａを確実に閉成するようになっている。 The valve body 3 is provided so as to be swingable with respect to the support member 4, and normally, the valve body 3 abuts against the opening 2a by its own weight to seal the opening 2a.
Further, the valve body 3 is swung in the direction of the arrow B corresponding to the direction of the arrow A by the fluid flowing in the direction of the arrow A to open the opening 2a, and in the reverse direction from the outlet 1b of the exhaust port toward the inlet 1a. By the fluid to be flowed, it swings in the opposite direction and is brought into close contact with the opening 2a, thereby reliably closing the opening 2a.

弁体３は、サポート部材４との係合部においてフック形状を有し、サポート部材４の先端部に単に引っかけられているのみである。なお、弁体３は、プラスチックまたは鋼材などの任意の材料により形成され得る。   The valve body 3 has a hook shape at the engaging portion with the support member 4, and is merely hooked on the tip end portion of the support member 4. The valve body 3 can be formed of any material such as plastic or steel.

また、弁体３の先端部３ａは、矢印Ａ方向に流れる流体によって揺動されたときに、排気口または逆止弁本体２の一部（図１においては、逆止弁本体２の上端部）に衝合して（２点鎖線参照）、弁体３の矢印Ｂ方向の揺動角度の上限を設定するようになっている。
なお、弁体３の先端部３ａと逆止弁本体２の上端部との隙間は、弁体３の揺動による開口部２ａの開放動作に支障をおよぼさない範囲内の最小値に設定されている。 When the tip 3a of the valve body 3 is swung by the fluid flowing in the direction of arrow A, the exhaust port or a part of the check valve main body 2 (in FIG. 1, the upper end of the check valve main body 2). ) (See the two-dot chain line), the upper limit of the swing angle of the valve element 3 in the direction of arrow B is set.
The clearance between the tip 3a of the valve body 3 and the upper end of the check valve body 2 is set to a minimum value within a range that does not hinder the opening operation of the opening 2a due to the swinging of the valve body 3. Has been.

サポート部材４は、プラスチックまたは金具により構成されており、逆止弁本体２内に圧入されて、逆止弁本体２と一体化されている。
また、サポート部材４および弁体３を含む逆止弁本体２は、排気口内に圧入により固定されている。なお、逆止弁本体２は、プラスチックまたはアルミニウムなどの金属により形成され得る。 The support member 4 is made of plastic or metal fittings, and is press-fitted into the check valve body 2 and integrated with the check valve body 2.
The check valve body 2 including the support member 4 and the valve body 3 is fixed by press-fitting into the exhaust port. The check valve body 2 can be formed of a metal such as plastic or aluminum.

さらに、逆止弁本体２に設けられた開口部２ａは、通常時および逆止動作時に弁体３が確実に密着して開口部２ａが密閉されるように、サポート部材４の先端部よりも矢印Ａ方向に延長された位置に設けられ、且つ、開口部２ａに衝合したときの弁体３の傾斜角度と一致したテーパ端面を有している。   Furthermore, the opening 2a provided in the check valve main body 2 is more than the tip of the support member 4 so that the valve body 3 can be surely adhered and sealed in the normal operation and the check operation. It has a tapered end surface that is provided at a position extended in the direction of arrow A and coincides with the inclination angle of the valve body 3 when it is brought into contact with the opening 2a.

次に、図１に示したこの発明の実施の形態１による動作について説明する。
まず、流体が存在しない通常状態において、弁体３は、自重により開口部２ａに衝合して開口部２ａを封止している。
ここで、流体が矢印Ａ方向に流れようとすると、弁体３は、流体により矢印Ａ方向と一致する矢印Ｂ方向に揺動して、開口部２ａを開放し（２点鎖線参照）、流体を通過させる。
このとき、弁体３の先端部３ａは、逆止弁本体２の上端部に衝合するので（２点鎖線参照）、開口部２ａの開度は、２点鎖線で示す弁体位置によって制限される。 Next, the operation according to the first embodiment of the present invention shown in FIG. 1 will be described.
First, in a normal state where no fluid is present, the valve body 3 abuts against the opening 2a by its own weight to seal the opening 2a.
Here, when the fluid tries to flow in the direction of the arrow A, the valve body 3 swings in the direction of the arrow B that coincides with the direction of the arrow A by the fluid to open the opening 2a (see the two-dot chain line). Pass through.
At this time, since the tip 3a of the valve body 3 abuts on the upper end of the check valve body 2 (see the two-dot chain line), the opening degree of the opening 2a is limited by the valve body position indicated by the two-dot chain line. Is done.

一方、流体が排気口の出口１ｂから入口１ａに向かって逆方向に流れようとすると、弁体３は、矢印Ａ方向とは逆方向に揺動して開口部２ａに密着し、開口部２ａを確実に密閉（閉成）することにより、流体の通過を阻止して逆止動作を行う。   On the other hand, when the fluid tries to flow in the reverse direction from the outlet 1b of the exhaust port toward the inlet 1a, the valve body 3 swings in the direction opposite to the direction of the arrow A and is in close contact with the opening 2a. Is securely sealed (closed) to prevent the passage of fluid and perform a check operation.

このように、排気口内に圧入可能な、簡単でコンパクトな構成の排気逆止弁により、取付けが容易であるうえ、逆止弁本体２の開口部２ａを確実に開閉させることができる。
また、断面がフック形状の弁体３をサポート部材４に引っかけたスイングタイプで構成されているので、逆止弁本体２（または、排気口）と弁体３との位置関係（隙間）により、開口部２ａの開度が一定開度以上にならないように、容易に上限開度（上限揺動角度）を設定することができる。
また、弁体３は、弾性を有しておらず、通常の自重により（または、逆圧力印加時に）逆止弁本体２の開口部２ａに密着するように構成されており、大きな応力がかからないので、排気時の抵抗力を低減することができ、故障が発生しにくいうえ、コンパクトに構成することができる。 In this manner, the exhaust check valve having a simple and compact configuration that can be press-fitted into the exhaust port is easy to mount and can reliably open and close the opening 2a of the check valve body 2.
In addition, since the cross section is configured by a swing type in which the hook-shaped valve body 3 is hooked on the support member 4, the positional relationship (gap) between the check valve body 2 (or the exhaust port) and the valve body 3 The upper limit opening (upper limit swing angle) can be easily set so that the opening of the opening 2a does not exceed a certain opening.
Further, the valve body 3 does not have elasticity, and is configured to be in close contact with the opening 2a of the check valve body 2 by a normal weight (or when reverse pressure is applied), so that no large stress is applied. Therefore, the resistance force at the time of exhaust can be reduced, failure is unlikely to occur, and a compact configuration can be achieved.

実施の形態２．
なお、上記実施の形態１では、サポート部材４の具体的な形状について特に言及しなかったが、たとえば、図２のように、Ｔ字形状に構成してもよく、図３のように、コの字形状に構成してもよい。
図２において、弁体３Ａを揺動自在に支持するサポート部材４Ａは、Ｔ字形状を有しており、一端が逆止弁本体２Ａに圧入されている。
また、図３において、弁体３Ｂを揺動自在に支持するサポート部材４Ｂは、コの字形状を有しており、各一端が逆止弁本体２Ｂに圧入されている。 Embodiment 2. FIG.
In the first embodiment, the specific shape of the support member 4 is not particularly mentioned. However, for example, the support member 4 may be formed in a T shape as shown in FIG. You may comprise in the shape of a letter.
In FIG. 2, the support member 4A that supports the valve body 3A in a swingable manner has a T shape, and one end thereof is press-fitted into the check valve body 2A.
Further, in FIG. 3, the support member 4B that supports the valve body 3B in a swingable manner has a U-shape, and each one end is press-fitted into the check valve body 2B.

この発明の実施の形態１を示す側断面図である。It is a sectional side view which shows Embodiment 1 of this invention. この発明の実施の形態２によるサポート部材を示す平面図である。It is a top view which shows the support member by Embodiment 2 of this invention. この発明の実施の形態２によるサポート部材の他の例を示す平面図である。It is a top view which shows the other example of the support member by Embodiment 2 of this invention.

符号の説明Explanation of symbols

１ バキュームポンプの本体、１ａ 排気口の入口、１ｂ 排気口の出口、２、２Ａ、２Ｂ 逆止弁本体、２ａ 開口部、３、３Ａ、３Ｂ 弁体、３ａ 弁体の先端部、４、４Ａ、４Ｂ サポート部材、Ａ 第１方向、Ｂ 揺動方向。   1 Body of vacuum pump, 1a Inlet of exhaust port, 1b Outlet of exhaust port, 2, 2A, 2B Check valve body, 2a Opening part, 3, 3A, 3B Valve body, 3a Tip part of valve body, 4, 4A 4B Support member, A first direction, B swing direction.

Claims (5)

自動車用バキュームポンプの排気口内に設けられ、前記排気口の入口から出口に向かう第１方向の流体のみを通過させる自動車用バキュームポンプの排気逆止弁において、
前記排気口の内壁に密封されて固定された逆止弁本体と、
前記逆止弁本体の一端に設けられた開口部と、
前記逆止弁本体から前記第１方向に向けて突出するように設けられたサポート部材と、
前記サポート部材に対して揺動自在に設けられた弁体とを備え、
前記弁体は、
前記弁体の自重により前記開口部に衝合して前記開口部を封止するとともに、
前記第１方向に流れる流体により、前記第１方向に揺動して前記開口部を開放し、
前記排気口の出口から入口に向かって第２方向に流れようとする流体により、前記第２方向に揺動して前記開口部に密着し、前記開口部を閉成することを特徴とする自動車用バキュームポンプの排気逆止弁。 In an exhaust check valve of an automotive vacuum pump that is provided in an exhaust port of an automotive vacuum pump and allows only fluid in a first direction from the inlet to the outlet of the exhaust to pass through,
A check valve body sealed and fixed to the inner wall of the exhaust port;
An opening provided at one end of the check valve body;
A support member provided so as to protrude from the check valve body in the first direction;
A valve body provided swingably with respect to the support member,
The valve body is
While sealing against the opening by the dead weight of the valve body,
The fluid flowing in the first direction swings in the first direction to open the opening,
A vehicle that swings in the second direction and adheres closely to the opening by a fluid that flows in the second direction from the outlet of the exhaust port toward the inlet, thereby closing the opening. Exhaust check valve for vacuum pump. 前記サポート部材は、金具により構成され、
前記逆止弁本体は、前記排気口内に圧入により固定されたことを特徴とする請求項１に記載の自動車用バキュームポンプの排気逆止弁。 The support member is constituted by a metal fitting,
The exhaust check valve for an automotive vacuum pump according to claim 1, wherein the check valve body is fixed in the exhaust port by press fitting. 前記弁体は、前記第１方向に流れる流体による揺動時に、前記排気口または前記逆止弁本体の一部に衝合して、前記弁体の揺動角度の上限を設定するための端部を有することを特徴とする請求項１または請求項２に記載の自動車用バキュームポンプの排気逆止弁。   When the valve body is swung by the fluid flowing in the first direction, an end for setting an upper limit of the rocking angle of the valve body by abutting against a part of the exhaust port or the check valve body The exhaust check valve for an automotive vacuum pump according to claim 1 or 2, further comprising a portion. 前記弁体は、前記サポート部材との係合部においてフック形状を有することを特徴とする請求項１から請求項３までのいずれか１項に記載の自動車用バキュームポンプの排気逆止弁。   The exhaust check valve for an automotive vacuum pump according to any one of claims 1 to 3, wherein the valve body has a hook shape at an engaging portion with the support member. 前記開口部は、前記サポート部材の先端部よりも第１方向に延長された位置に設けられ、且つ、前記開口部に衝合したときの前記弁体の傾斜角度と一致したテーパ端面を有することを特徴とする請求項１から請求項４までのいずれか１項に記載の自動車用バキュームポンプの排気逆止弁。   The opening is provided at a position extended in the first direction from the tip of the support member, and has a tapered end surface that coincides with the inclination angle of the valve body when abutting against the opening. An exhaust check valve for a vacuum pump for an automobile according to any one of claims 1 to 4, wherein:
JP2003281151A 2003-07-28 2003-07-28 Exhaust check valve for automobile vacuum pump Pending JP2005048652A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2003281151A JP2005048652A (en) 2003-07-28 2003-07-28 Exhaust check valve for automobile vacuum pump
KR1020030080952A KR20050013483A (en) 2003-07-28 2003-11-17 Exhaust check valve for a vehicular vacuum pump
DE10357805A DE10357805B4 (en) 2003-07-28 2003-12-10 Outlet check valve for a vehicle vacuum pump
FR0450046A FR2858369B1 (en) 2003-07-28 2004-01-08 EXHAUST RETURN VALVE FOR VEHICLE VACUUM PUMP
KR1020060004840A KR100582823B1 (en) 2003-07-28 2006-01-17 Exhaust check valve for a vehicular vacuum pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003281151A JP2005048652A (en) 2003-07-28 2003-07-28 Exhaust check valve for automobile vacuum pump

Publications (1)

Publication Number Publication Date
JP2005048652A true JP2005048652A (en) 2005-02-24

Family

ID=34056191

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003281151A Pending JP2005048652A (en) 2003-07-28 2003-07-28 Exhaust check valve for automobile vacuum pump

Country Status (4)

Country Link
JP (1) JP2005048652A (en)
KR (2) KR20050013483A (en)
DE (1) DE10357805B4 (en)
FR (1) FR2858369B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008249056A (en) * 2007-03-30 2008-10-16 Tlv Co Ltd Check valve

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1024421B1 (en) 2016-07-20 2018-02-20 Atlas Copco Airpower Naamloze Vennootschap Check valve assembly

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1635842A (en) * 1924-09-20 1927-07-12 Hirshstein Joseph Check valve
CH112673A (en) * 1924-11-13 1925-12-16 Aecherli Fritz & Paul Slurry piston pump.
GB1467001A (en) * 1973-03-06 1977-03-16 Sykes Pumps Ltd Centrifugal pumps
JPS60146972A (en) * 1984-01-11 1985-08-02 Matsushita Refrig Co Check valve contained in pipe
DE4031456C3 (en) * 1990-10-04 1996-04-11 Bernhard Meyer Flap check valve
DE9413445U1 (en) * 1994-08-19 1994-10-13 Meyer, Bernhard, 33647 Bielefeld Flap valve
DE19524906A1 (en) * 1995-07-08 1997-01-09 Pierburg Ag Check valve for vacuum pump - spring strip opening limiter made from embossed or sheet stamped section and in stop region of spring strip has elongated hole

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008249056A (en) * 2007-03-30 2008-10-16 Tlv Co Ltd Check valve

Also Published As

Publication number Publication date
KR100582823B1 (en) 2006-05-23
DE10357805A1 (en) 2005-02-24
DE10357805B4 (en) 2007-03-22
KR20050013483A (en) 2005-02-04
KR20060018275A (en) 2006-02-28
FR2858369B1 (en) 2013-02-15
FR2858369A1 (en) 2005-02-04

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