WO2022044635A1 - Vane pump device for vapor collection in oil supply device - Google Patents

Vane pump device for vapor collection in oil supply device Download PDF

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Publication number
WO2022044635A1
WO2022044635A1 PCT/JP2021/027350 JP2021027350W WO2022044635A1 WO 2022044635 A1 WO2022044635 A1 WO 2022044635A1 JP 2021027350 W JP2021027350 W JP 2021027350W WO 2022044635 A1 WO2022044635 A1 WO 2022044635A1
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Prior art keywords
pump
vane
groove
temperature
pump device
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PCT/JP2021/027350
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French (fr)
Japanese (ja)
Inventor
直裕 小倉
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株式会社タツノ
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Priority to KR1020237004184A priority Critical patent/KR20230052273A/en
Priority to CN202180052659.XA priority patent/CN115989364A/en
Priority to JP2022545547A priority patent/JPWO2022044635A1/ja
Publication of WO2022044635A1 publication Critical patent/WO2022044635A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/42—Filling nozzles
    • B67D7/54—Filling nozzles with means for preventing escape of liquid or vapour or for recovering escaped liquid or vapour
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/28—Safety arrangements; Monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member

Definitions

  • the present invention relates to a technique for preventing a temperature rise of a pump device for recovering vapor of a refueling device.
  • Patent Document 1 When supplying a highly volatile liquid to the fuel tank of a vehicle, a large amount of vapor is generated. Therefore, a refueling nozzle having a vapor recovery function as shown in Patent Document 1 is used.
  • This device is configured to connect a vane pump 10 in the middle of a pipeline 50 from a refueling nozzle 80 to a vapor discharge port to suck and collect vapor in an oil storage tank.
  • FIG. 11 shows that such a device continues to operate for a long time in a state where a differential pressure is generated due to clogging on the suction port side or the discharge port side of the vane pump 10 or other mistakes in valve operation.
  • a valve device 46 for opening the suction port and the discharge port with a predetermined differential pressure is connected in order to reduce the temperature.
  • valve device operates at a constant pressure, which not only limits the capacity of the vane pump but also causes a failure in the pipeline 50. There is a problem that the operation of the vane pump continues even in the operating state.
  • the present invention has been made in view of such a problem, and the purpose of the present invention is to maximize the capacity of the vane pump and stop the pump function in the event of an abnormality in the flow path to ensure the temperature rise of the vane pump. Is to provide a pumping device that can be prevented.
  • the present invention has a pump housing, a rotor housed in the pump housing in an eccentric state, a groove formed in the rotor in the radial direction, and slidably housed in the groove.
  • the pump device is provided with means for stopping the pump function when the temperature of the pump device exceeds a predetermined temperature.
  • the pump in order to maintain the vane in the retracted state only when the temperature rises, the pump is always operated without deteriorating the capacity and function of the pump, and the vane is retracted only when the temperature rises to perform the pump function. Can be stopped to prevent the pump from becoming abnormally hot.
  • FIGS. (A), (b), and (c) are diagrams showing the shapes of stoppers when the temperatures are in a normal temperature state, a low temperature state, and a high temperature state, respectively. It is a figure which shows the state of the vane in a rotor in a high temperature state. It is a diagram which shows the progress of the temperature change of the vane pump at the time of abnormality in the said apparatus.
  • FIG. 1 shows an embodiment of a measuring machine, in which a liquid from a refueling pump 2 driven by a refueling motor 1 is supplied to a refueling nozzle 4 via a flow meter 3.
  • a vane pump 6 for collecting vapor is connected to the vapor recovery port of the refueling nozzle 4 on the downstream side via a flow rate sensor 5.
  • this vane pump includes a pump housing, a rotor housed in the pump housing in an eccentric state, a groove formed in the rotor in a radial direction, and a vane slidably housed in the groove. ..
  • the vapor recovery line 7 communicates with a recovery device (not shown) via a maintenance valve 8.
  • the control device 11 when the nozzle 4 is removed from the nozzle hook 9, the control device 11 operates to return the display 12 to zero, the refueling motor 1 is operated by operating the nozzle lever, and the refueling pump 2 sends the liquid. Start, measure the amount of liquid to be sent with the flow meter 3, and display it on the display 12. The vapor generated in this process is sucked by the vane pump 6 from the vapor suction port of the nozzle 4 via the flow rate sensor 5 and sent to the recovery device.
  • the control device 11 stops the vane pump 6 and the refueling pump 2 in response to the signal from the flow rate sensor 5 to prevent the occurrence of an accident. ..
  • FIG. 2 shows a second embodiment of the vane pump for collecting vapor of the present invention, in which the rotor 24 is eccentric in the pump chamber 23 of the pump casing 22 provided with the suction port 20 and the discharge port 21. Have been placed.
  • the rotor 24 is formed with a plurality of grooves 26 that accommodate the vanes 25 so as to be able to advance and retreat in a substantially close battle direction at equal intervals, and the vanes 25 are accommodated in each groove 26.
  • a curved accommodating recess 30 is formed at the rear end of the vane 25, that is, a portion on the side of the rotating shaft 28, in which the center of the bottom portion 30a for fixing and accommodating the stopper 29 is on the inner side. ..
  • the accommodating recess 30 is formed to a depth sufficient to absorb the deformation of the curved shape of the stopper 29 at a low temperature. As a result, it is possible to prevent the stopper 29 from being pushed back to the bottom portion 30a of the recess 30 and protruding at a low temperature.
  • the stopper 29 Since the stopper 29 is made of a bimetal plate, it has a flat plate shape at room temperature (FIG. 4 (a)), a concave state at the center at low temperature (FIG. 4 (b)), and a convex state at the center at high temperature. It protrudes from the surface of the vane 25 (FIG. 4 (c)) and comes into contact with the inner wall of the groove 26.
  • the vane 25 can be projected by centrifugal force and its tip is slidably contacted with the inner wall 23a of the pump chamber 23. Let it exert a pumping action.
  • the stopper 29 is deformed to the bottom side of the recess 30 (FIG. 4A), the vane 25 is released from the restraint, and the vane 25 comes into contact with the inner wall 23a of the pump chamber 23 to recover the pump function. do. Since such a process is repeated below, the pump temperature is limited to a constant temperature range as shown in FIG.
  • the stopper 29 is housed in the recess 30 of the vane 25, but as shown in FIG. 7 as the second embodiment, the vane of the pump chamber 43 provided with the suction port 40 and the discharge port 41.
  • a recess 47 is formed in the groove 46 of the rotor 45 that accommodates the 44, and a stopper 48 made of bimetal is cantilevered in the recess 47 so that the rear end 44a side of the vane 44 protrudes toward the groove 46 at high temperature. It may be fixed in a beam shape, and a recess 44b that engages with the rear end 48a of the stopper 48 may be formed on the surface of the rear end 44a of the vane 44 facing the stopper 48.
  • FIG. 9 shows a third embodiment of the present invention, in which the suction port 51 and the discharge port 52 of the vane pump 50 are connected by a bypass 53 and are always closed here.
  • the valve 56 is provided with a bimetal 55 that is urged by a spring 54 and deforms so as to press the shaft so as to open at a high temperature.
  • the bimetal 55 since the bimetal 55 does not press the valve 56 at room temperature or low temperature, the valve is maintained in a closed state and has a rated pumping action. On the other hand, when the pump 50 becomes hot, the bimetal 55 opens the valve 56 against the urging force as shown in FIG. 10, and the pump function is impaired.
  • machining to the vane pump body becomes unnecessary and the manufacturing process can be simplified.
  • the power supply to the motor can be cut off and stopped.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Rotary Pumps (AREA)

Abstract

[Problem] To prevent excessive temperature increase without reducing the performance of a pump for suctioning vapor. [Solution] A pump device comprising: a pump housing; a rotor eccentrically accommodated in the pump housing; a groove formed in the radiation direction of the rotor; and a vane accommodated so as to be able to slide in the groove, wherein a means 11 is provided for stopping the pump function when the pump device is at or above a prescribed temperature. The vane is kept in a retracted state only when the temperature has risen; therefore the pump can be operated normally without reducing the performance or function of the pump and can be protected by retracting the vane and stopping the pump function only when the temperature rises.

Description

給油装置におけるベーパ回収用のベーンポンプ装置Vane pump device for collecting vapor in refueling device
　本発明は、給油装置のベーパ回収用のポンプ装置の温度上昇を防止する技術に関する。 The present invention relates to a technique for preventing a temperature rise of a pump device for recovering vapor of a refueling device.
　車両の燃料タンクに揮発性の高い液を供給する場合には多量のベーパーが発生する。このため特許文献１に示したようなベーパ回収機能が付いた給油ノズルが使用されている。この装置は、給油ノズル８０からベーパ排出口に至る管路５０の途中にベーンポンプ１０を接続してベーパを貯油タンクに吸引回収するように構成されている。 When supplying a highly volatile liquid to the fuel tank of a vehicle, a large amount of vapor is generated. Therefore, a refueling nozzle having a vapor recovery function as shown in Patent Document 1 is used. This device is configured to connect a vane pump 10 in the middle of a pipeline 50 from a refueling nozzle 80 to a vapor discharge port to suck and collect vapor in an oil storage tank.
　このような装置にあっては、ベーンポンプ１０の吸引口側、もしくは排出口側で詰まりやその他、弁操作のミスにより差圧が発生している状態で長時間運転を継続すると図１１に示したように時間とともにベーンポンプの温度が上昇するため、これを軽減するため吸引口と排出口とを所定の差圧で開弁する弁装置４６が接続されている。 FIG. 11 shows that such a device continues to operate for a long time in a state where a differential pressure is generated due to clogging on the suction port side or the discharge port side of the vane pump 10 or other mistakes in valve operation. As the temperature of the vane pump rises with time, a valve device 46 for opening the suction port and the discharge port with a predetermined differential pressure is connected in order to reduce the temperature.
　これによれば、過度なポンプ負荷を抑えて過度な温度上昇は避けることができるものの、一定圧力で弁装置が作動するためベーンポンプの能力が制限を受けるばかりでなく、管路５０に障害が発生している状態でもベーンポンプの運転が継続され続けるという問題がある。 According to this, although it is possible to suppress an excessive pump load and avoid an excessive temperature rise, the valve device operates at a constant pressure, which not only limits the capacity of the vane pump but also causes a failure in the pipeline 50. There is a problem that the operation of the vane pump continues even in the operating state.
米国特許第５５６７１２６号明細書U.S. Pat. No. 5,567,126
　本発明は、このような問題に鑑みてなされたものであって、その目的とするところはベーンポンプの能力を最大限に引き出しつつ流路の異常時にはポンプ機能を停止させてベーンポンプの温度上昇を確実に防止することができるポンプ装置を提供することである。 The present invention has been made in view of such a problem, and the purpose of the present invention is to maximize the capacity of the vane pump and stop the pump function in the event of an abnormality in the flow path to ensure the temperature rise of the vane pump. Is to provide a pumping device that can be prevented.
　このような課題を達成するために本発明はポンプハウジングと、該ポンプハウジングに偏芯状態で収容されたロータと、該ロータに放射方向に形成された溝と、該溝に摺動自在に収容されたベーンとを備えたポンプ装置において、前記ポンプ装置が所定温度以上になったときポンプ機能を停止させる手段を備えている。 In order to achieve such a problem, the present invention has a pump housing, a rotor housed in the pump housing in an eccentric state, a groove formed in the rotor in the radial direction, and slidably housed in the groove. In the pump device provided with the vane, the pump device is provided with means for stopping the pump function when the temperature of the pump device exceeds a predetermined temperature.
　本発明によれば、温度上昇した際にだけベーンを後退した状態に維持するため、常時はポンプの能力や機能を低下させることなくポンプを作動させ、温度上昇時にのみベーンを後退させてポンプ機能を停止させてポンプが異常な高温になるのを防止できる。 According to the present invention, in order to maintain the vane in the retracted state only when the temperature rises, the pump is always operated without deteriorating the capacity and function of the pump, and the vane is retracted only when the temperature rises to perform the pump function. Can be stopped to prevent the pump from becoming abnormally hot.
本発明の給油装置の一実施例を示す図である。It is a figure which shows one Example of the refueling apparatus of this invention. 本発明の給油装置に適したベーンポンプの一実施例を示す断面図である。It is sectional drawing which shows one Example of the vane pump suitable for the refueling apparatus of this invention. 同上ベーンポンプのベーンと ストノパの一実施例を示す斜視図である。It is a perspective view which shows the example of the vane of the vane pump and the stonopa of the same as above. 図（ａ）（ｂ）（ｃ）はそれぞれ 温度が常温状態、低温状態、及び高温状態にあるときのストッパの形状を示す図である。FIGS. (A), (b), and (c) are diagrams showing the shapes of stoppers when the temperatures are in a normal temperature state, a low temperature state, and a high temperature state, respectively. 高温状態でのローター内でのベーンの状態を示す図である。It is a figure which shows the state of the vane in a rotor in a high temperature state. 同上装置における異常時のベーンポンプの温度変化の経過を示す線図である。It is a diagram which shows the progress of the temperature change of the vane pump at the time of abnormality in the said apparatus. 本発明の給油装置に適したベーンポンプの他の実施例を示す図である。It is a figure which shows the other embodiment of the vane pump suitable for the refueling apparatus of this invention. 同上ポンプにおける高温状態でのベーンの状態を示す図である。It is a figure which shows the state of the vane in the high temperature state in the same pump. 本発明の給油装置に適したベーンポンプの他の実施例を常温状態で示す図である。It is a figure which shows the other embodiment of the vane pump suitable for the refueling apparatus of this invention in the normal temperature state. 同上ポンプの高温状態での弁の状態を示す図である。It is a figure which shows the state of the valve in the high temperature state of the same-mentioned pump. 従来のベーンポンプの温度変化の時間経過を示す線図である。It is a diagram which shows the time passage of the temperature change of the conventional vane pump.
　そこで以下に、本発明の詳細を図示した実施例に基づいて説明する。
　図１は、計量機の一実施例を示すものであって、給油モータ１により駆動される給油ポンプ２からの液体は流量計３を介して給油ノズル４に供給される。給油ノズル４のベーパ回収口には流量センサ５を介して下流側にベーパ回収用のベーンポンプ６が接続されている。このベーンポンプは周知のようにポンプハウジングと、ポンプハウジングに偏芯状態で収容されたロータと、ロータに放射方向に形成された溝と、溝に摺動自在に収容されたベーンとを備えている。ベーパ回収管路７はメンテナンスバルブ８を経由して図示しない回収装置に連通している。 Therefore, the details of the present invention will be described below with reference to the illustrated examples.
FIG. 1 shows an embodiment of a measuring machine, in which a liquid from a refueling pump 2 driven by a refueling motor 1 is supplied to a refueling nozzle 4 via a flow meter 3. A vane pump 6 for collecting vapor is connected to the vapor recovery port of the refueling nozzle 4 on the downstream side via a flow rate sensor 5. As is well known, this vane pump includes a pump housing, a rotor housed in the pump housing in an eccentric state, a groove formed in the rotor in a radial direction, and a vane slidably housed in the groove. .. The vapor recovery line 7 communicates with a recovery device (not shown) via a maintenance valve 8.
　この実施例においてノズル掛９からノズル４が外されると、制御装置１１が作動して表示器１２を帰零し、ノズルレバーの操作により給油モータ１を作動させて給油ポンプ２により送液を開始し、送液量を流量計３で計測して表示器１２に表示する。この過程で発生したベーパは、ノズル４のベーパ吸引口から流量センサ５を介してベーンポンプ６により吸引されて回収装置に送り込まれる。 In this embodiment, when the nozzle 4 is removed from the nozzle hook 9, the control device 11 operates to return the display 12 to zero, the refueling motor 1 is operated by operating the nozzle lever, and the refueling pump 2 sends the liquid. Start, measure the amount of liquid to be sent with the flow meter 3, and display it on the display 12. The vapor generated in this process is sucked by the vane pump 6 from the vapor suction port of the nozzle 4 via the flow rate sensor 5 and sent to the recovery device.
　ベーパ回収の過程でベーンポンプ６に不都合が生じて流量が低下すると、流量センサ５からの信号に応動して制御装置１１がベーンポンプ６や給油ポンプ２を停止しさせ、事故の発生を未然に防止する。 When the vane pump 6 becomes inconvenient and the flow rate drops in the process of collecting the vapor, the control device 11 stops the vane pump 6 and the refueling pump 2 in response to the signal from the flow rate sensor 5 to prevent the occurrence of an accident. ..
　図２は、本発明のベーパ回収用ベーンポンプの第二実施例を示すものであって、吸引口２０と排出口２１を備えたポンプケーシング２２のポンプ室２３内にはロータ２４が偏芯状態で配置されている。 FIG. 2 shows a second embodiment of the vane pump for collecting vapor of the present invention, in which the rotor 24 is eccentric in the pump chamber 23 of the pump casing 22 provided with the suction port 20 and the discharge port 21. Have been placed.
　ロータ２４にはベーン２５を略接戦方向に進退可能に収容する溝２６が複数、等間隔に形成され、それぞれの溝２６にベーン２５が収容されている。これらベーン２５の後端、つまり回転軸２８の側となる部分には図３に示したようにストッパ２９を固定収容する底部３０ａの中央が奥側となる湾曲した収容凹部３０が形成されている。 The rotor 24 is formed with a plurality of grooves 26 that accommodate the vanes 25 so as to be able to advance and retreat in a substantially close battle direction at equal intervals, and the vanes 25 are accommodated in each groove 26. As shown in FIG. 3, a curved accommodating recess 30 is formed at the rear end of the vane 25, that is, a portion on the side of the rotating shaft 28, in which the center of the bottom portion 30a for fixing and accommodating the stopper 29 is on the inner side. ..
　この収容凹部３０は、低温時にストッパ２９の湾曲形状変形を吸収できる程度の深さに形成されている。これにより、低温時にストッパ２９が凹部３０の底部３０ａに押返されて突出するのを未然に防止できる。 The accommodating recess 30 is formed to a depth sufficient to absorb the deformation of the curved shape of the stopper 29 at a low temperature. As a result, it is possible to prevent the stopper 29 from being pushed back to the bottom portion 30a of the recess 30 and protruding at a low temperature.
　ストッパ２９はバイメタル板で構成されているため、常温では平板状（図４（ａ））に、低温時には中央部が凹状態（図４（ｂ））に、高温時には中央部が凸状態、つまりベーン２５の表面よりも突出（図４（ｃ））して溝２６の内壁に当接接触するようになっている。 Since the stopper 29 is made of a bimetal plate, it has a flat plate shape at room temperature (FIG. 4 (a)), a concave state at the center at low temperature (FIG. 4 (b)), and a convex state at the center at high temperature. It protrudes from the surface of the vane 25 (FIG. 4 (c)) and comes into contact with the inner wall of the groove 26.
　この実施例によれば、常温時にはストッパ２９が平板状を維持し、また低温時には凹状態を維持しているので、ベーン２５は遠心力により突出できその先端をポンプ室２３の内壁２３ａに摺接させてポンプ作用を発揮する。 According to this embodiment, since the stopper 29 maintains a flat plate shape at room temperature and a concave state at low temperature, the vane 25 can be projected by centrifugal force and its tip is slidably contacted with the inner wall 23a of the pump chamber 23. Let it exert a pumping action.
　一方、管路の詰まりや閉塞等により圧力が高くなってベーンポンプに負荷がかかると、ベーンポンプの温度が上昇し、ストッパ２９が凸状態（図４（ｃ））となり溝２６の内壁２３ａに弾接する。これによりベーン２５が内壁２３ａによりいったん径方向に押し込まれると、図５に示したようにベーン２５は、ロータ２４の回転による遠心力では突出せず、ポンプ室２３の内壁２３ａに摺接できなくなり、ポンプ作用が停止、つまり空転する。 On the other hand, when the pressure becomes high due to clogging or blockage of the pipeline and a load is applied to the vane pump, the temperature of the vane pump rises, the stopper 29 becomes a convex state (FIG. 4 (c)), and the stopper 29 comes into contact with the inner wall 23a of the groove 26. .. As a result, once the vane 25 is pushed in the radial direction by the inner wall 23a, the vane 25 does not protrude due to the centrifugal force due to the rotation of the rotor 24 as shown in FIG. 5, and cannot slide into the inner wall 23a of the pump chamber 23. , The pumping action stops, that is, it spins.
　この空転によりベーンポンプの温度が低下するため、ストッパ２９が凹部３０の底側（図４（ａ））に変形し、ベーン２５は拘束から解除されポンプ室２３の内壁２３ａに接触しポンプ機能が回復する。以下このような工程を繰り返すためポンプ温度が図６に示したように一定温度範囲に制限される。 Since the temperature of the vane pump drops due to this idling, the stopper 29 is deformed to the bottom side of the recess 30 (FIG. 4A), the vane 25 is released from the restraint, and the vane 25 comes into contact with the inner wall 23a of the pump chamber 23 to recover the pump function. do. Since such a process is repeated below, the pump temperature is limited to a constant temperature range as shown in FIG.
　なお、上述の実施例においてはストッパ２９をベーン２５の凹部３０に収容しているが、図７に第二実施例として示したように吸引口４０、排出口４１を備えたポンプ室４３のベーン４４を収容するロータ４５の溝４６に凹部４７を形成し、高温時にベーン４４の後端４４ａ側が溝４６側に突出するようにバイメタルからなるストッパ４８をベーンの先端側を凹部４７内に片持ち梁状に固定し、さらにベーン４４の後端４４ａのストッパ４８と対向する面にストッパ４８の後端４８ａと係合する凹部４４ｂを形成してもよい。 In the above embodiment, the stopper 29 is housed in the recess 30 of the vane 25, but as shown in FIG. 7 as the second embodiment, the vane of the pump chamber 43 provided with the suction port 40 and the discharge port 41. A recess 47 is formed in the groove 46 of the rotor 45 that accommodates the 44, and a stopper 48 made of bimetal is cantilevered in the recess 47 so that the rear end 44a side of the vane 44 protrudes toward the groove 46 at high temperature. It may be fixed in a beam shape, and a recess 44b that engages with the rear end 48a of the stopper 48 may be formed on the surface of the rear end 44a of the vane 44 facing the stopper 48.
　この実施例によれば、ベーンポンプの温度が上昇すると、図８に示したようにベーン４４がポンプ室４３の周面４３ａに押されて後退したとき、溝４６に突出しているストッパ４８の先端４８ａがベーン４４の凹部４４ｂに係合するため、ベーン４４が後退した状態で固定されてしまい、ベーン４４がポンプ室４３の周面４３ａに摺接できずポンプ作用が停止する。 According to this embodiment, when the temperature of the vane pump rises, as shown in FIG. 8, when the vane 44 is pushed by the peripheral surface 43a of the pump chamber 43 and retracts, the tip 48a of the stopper 48 protruding into the groove 46 Is engaged with the recess 44b of the vane 44, so that the vane 44 is fixed in a retracted state, the vane 44 cannot slide into the peripheral surface 43a of the pump chamber 43, and the pumping operation is stopped.
　ポンプ作用の喪失により温度が低下すると、ストッパ４８が元の状態（図７)に戻り、ベーン４４の拘束が解かれ、再び遠心力でベーン４４が突出して、ポンプ室４３の周面４３ａに摺接してポンプ作用が回復する。以下このような工程を繰り返すためポンプ温度が図６に示したように一定温度範囲に制限される。 When the temperature drops due to the loss of pumping action, the stopper 48 returns to its original state (FIG. 7), the restraint of the vane 44 is released, and the vane 44 protrudes again due to centrifugal force and slides on the peripheral surface 43a of the pump chamber 43. The pumping action is restored in contact. Since such a process is repeated below, the pump temperature is limited to a constant temperature range as shown in FIG.
　さらに図９は、本発明の第三の実施例を示すものであって、この実施例においてはベーンポンプ５０の吸引口５１と排出口５２とをバイパス５３で接続するとともに、ここに常時閉弁するようにバネ５４により付勢され、また高温時には開弁するように軸を押圧するように変形するバイメタル５５を備えた弁５６を配置したものである。 Further, FIG. 9 shows a third embodiment of the present invention, in which the suction port 51 and the discharge port 52 of the vane pump 50 are connected by a bypass 53 and are always closed here. The valve 56 is provided with a bimetal 55 that is urged by a spring 54 and deforms so as to press the shaft so as to open at a high temperature.
　この実施例によれば、常温時もしくは低温時はバイメタル５５が弁５６を押圧していないので、閉弁状態を維持に対しており、定格のポンプ作用を奏する。一方、ポンプ５０が高温になるとバイメタル５５により図１０に示したように弁５６が付勢力に抗して開弁されポンプ機能が損なわれる。 According to this embodiment, since the bimetal 55 does not press the valve 56 at room temperature or low temperature, the valve is maintained in a closed state and has a rated pumping action. On the other hand, when the pump 50 becomes hot, the bimetal 55 opens the valve 56 against the urging force as shown in FIG. 10, and the pump function is impaired.
　この実施例によればバイパス路を形成し、ここに弁装置を接続することにより構成できるから、ベーンポンプ本体への機械加工が不要となり、製造工程を簡素化できる。 According to this embodiment, since a bypass path can be formed and a valve device can be connected to the bypass path, machining to the vane pump body becomes unnecessary and the manufacturing process can be simplified.
　さらには、ベーンポンプを駆動するモータの負荷電流が所定値を越えた場合にモータへの給電を断って停止することもできる。 Furthermore, when the load current of the motor that drives the vane pump exceeds a predetermined value, the power supply to the motor can be cut off and stopped.
　ベーンポンプに温度センサーを付帯させて温度が所定値を越えた場合に停止することもできる。 It is also possible to attach a temperature sensor to the vane pump and stop it when the temperature exceeds the specified value.
　ベーンポンプの吸引口と排出口との差圧を検出し、個の差圧によりベーンポンプの負荷状態を検出してポンプ駆動モータを制御することもできる。 It is also possible to detect the differential pressure between the suction port and the discharge port of the vane pump, detect the load state of the vane pump by the individual differential pressure, and control the pump drive motor.
１　給油モータ
２　給油ポンプ
３　流量計
４　流量センサ
６　ベーンポンプ
７　ベーパ回収管路
８　メンテナンスバルブ
１１　制御装置
１２　表示器
２０　吸引口
２１　排出口
２２　ポンプケーシング
２３　ポンプ室
２４　ロータ
２５　ベーン
２６　溝
２９　ストッパ 1 Refueling motor 2 Refueling pump 3 Flow meter 4 Flow sensor 6 Vane pump 7 Vapor recovery pipe 8 Maintenance valve 11 Control device 12 Display 20 Suction port 21 Discharge port 22 Pump casing 23 Pump chamber 24 Rotor 25 Vane 26 Groove 29 Stopper

Claims (5)

  1. 　ポンプハウジングと、該ポンプハウジングに編芯状態で収容されたロータと、該ロータに放射方向に形成された溝と、該溝に摺動自在に収容されたベーンとを備えたポンプ装置において、
    　前記ポンプ装置が所定温度以上になったときポンプ機能を停止させる手段を備えたポンプ装置。     In a pump device including a pump housing, a rotor housed in the pump housing in a knitted state, a groove formed in the rotor in a radial direction, and a vane slidably housed in the groove.
    A pump device provided with means for stopping the pump function when the temperature of the pump device exceeds a predetermined temperature.
  2. 　前記ポンプ機能を停止させる手段が前記ベーンの摺動を規制する手段で構成されている請求項１に記載のポンプ装置。 The pump device according to claim 1, wherein the means for stopping the pump function is composed of means for restricting the sliding of the vane.
  3. 　前記ベーンの摺動を規制する手段が、前記ベーンまたは前記溝に収容固定され、前記溝側または前記溝の内壁側に突出するバイメタルで構成されている請求項２に記載のポンプ装置。 The pump device according to claim 2, wherein the means for restricting the sliding of the vane is accommodated and fixed in the vane or the groove, and is composed of a bimetal protruding toward the groove side or the inner wall side of the groove.
  4. 　前記ベーンの前記バイメタルに対向する面に高温時に前記バイメタルの一端と係合する凹部が形成され、また前記溝に前記バイメタルの一端が片持ち梁状固定されている請求項３に記載のポンプ装置。 The pump device according to claim 3, wherein a recess is formed on the surface of the vane facing the bimetal so as to engage with one end of the bimetal at high temperature, and one end of the bimetal is fixed in the groove in a cantilever shape. ..
  5. 　ポンプハウジングと、該ポンプハウジングに偏芯状態で収容されたロータと、該ロータに放射方向に形成された溝と、該溝に摺動自在に収容されたベーンとを備えたポンプ装置において、
    　流入口と排出口とを結ぶ流路を備え、前記流路に所定温度に到達したとき開弁する弁機構が設けられているポンプ装置。     In a pump device including a pump housing, a rotor housed in the pump housing in an eccentric state, a groove formed in the rotor in a radial direction, and a vane slidably housed in the groove.
    A pump device provided with a flow path connecting an inlet and an outlet, and a valve mechanism for opening the valve when the flow path reaches a predetermined temperature.
PCT/JP2021/027350 2020-08-25 2021-07-21 Vane pump device for vapor collection in oil supply device WO2022044635A1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5965994U (en) * 1982-10-27 1984-05-02 三菱重工業株式会社 Vane type fluid machine
JP2005180443A (en) * 2003-12-19 2005-07-07 Lg Electronics Inc Scroll compressor with overheating prevention device

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WO2012053499A1 (en) 2010-10-18 2012-04-26 株式会社フジクラ Wavelength dispersion measuring device and wavelength dispersion measuring method using same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5965994U (en) * 1982-10-27 1984-05-02 三菱重工業株式会社 Vane type fluid machine
JP2005180443A (en) * 2003-12-19 2005-07-07 Lg Electronics Inc Scroll compressor with overheating prevention device

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