JPH0369442A - Oil feeder with residual oil recovery device - Google Patents
Oil feeder with residual oil recovery deviceInfo
- Publication number
- JPH0369442A JPH0369442A JP20174589A JP20174589A JPH0369442A JP H0369442 A JPH0369442 A JP H0369442A JP 20174589 A JP20174589 A JP 20174589A JP 20174589 A JP20174589 A JP 20174589A JP H0369442 A JPH0369442 A JP H0369442A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- nozzle
- valve
- manual
- pump
- 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
Links
- 238000011084 recovery Methods 0.000 title claims abstract description 21
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 abstract description 2
- 238000004891 communication Methods 0.000 abstract 3
- 230000006854 communication Effects 0.000 abstract 3
- 239000007788 liquid Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 67
- 238000001514 detection method Methods 0.000 description 18
- 239000000945 filler Substances 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 5
- 239000000446 fuel Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
Landscapes
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
本発明は給油所等において使用され、自動車へガソリン
や軽油といった燃料油を供給する給油装置に関する。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a refueling device used at a refueling station or the like to supply fuel oil such as gasoline or diesel oil to automobiles.
（ロ）従来技術とその問題点
給油装置にはその下流端に給油ノズルが接続され、給油
ノズルに内設された手動開閉弁を操作することにより客
の指定する量の給油や満たん給油が行なわれている。(b) Conventional technology and its problems A refueling nozzle is connected to the downstream end of the refueling device, and by operating a manual on-off valve installed inside the refueling nozzle, the amount of refueling specified by the customer can be refilled or the amount can be refilled. It is being done.
これらの給油作業の終了時にはそのノズルの吐出管内の
残油を完全に排出させておくべきであるが、作業を急ぐ
あまりに油を残してしまうことが多く、油が残っている
と次の給油開始時に下記の不都合が生じる。At the end of these refueling operations, the remaining oil in the discharge pipe of the nozzle should be completely drained, but the work is often done in a hurry and oil is left behind, and if oil remains, it is difficult to start the next refueling. Sometimes the following inconveniences occur.
■筒先を自動車の給油ロヘセットしようとして下方に向
けると残油が排出されてしまうので自動車を汚し、ある
いは散布されて火災や公害、さらにはスリソプ事故の原
因となる。■If you point the tip of the cylinder downwards when trying to refuel a car, residual oil will be discharged, staining the car, or being sprayed, causing fire, pollution, and even accidents.
■自動車側の油種を検知する機構（コンタ旦プルーフ）
を備えた装置にあってはそのノズルから排出された油を
自動車側の油であるとの判断をしてしまい、油種の誤判
定をする可能性がある。■Mechanism to detect the type of oil on the car side (contamination proof)
In the case of a device equipped with a nozzle, the oil discharged from the nozzle may be determined to be oil from the automobile, and the type of oil may be incorrectly determined.
誤って異なる油種の油を給油してしまうとエンジントラ
ブルの原因になりその修理費や油の始末に多額の費用が
必要となる。If you mistakenly refuel with the wrong type of oil, it can cause engine trouble and require a large amount of money to repair and dispose of the oil.
そこで吐出管の下流端にポンプ圧力が作用すると開く弁
を設けて残油の排出を押さえる方法も採用されているが
、この場合には弁の部分が大きくなって給油ロヘセット
し難く作業性が損なわれる等の問題が発生している。Therefore, a method of suppressing the discharge of residual oil by installing a valve at the downstream end of the discharge pipe that opens when pump pressure is applied has been adopted, but in this case, the valve part becomes large and it is difficult to set the oil supply, which impairs work efficiency. Problems such as being lost are occurring.
（ハ）問題点を解決するための構成とその作用本発明は
前回給油時に残油があってもポンプが始動されるまでは
排出させないことによって前記問題点を解決しようとす
るもので、その構成は、油を汲み出すポンプと、汲み出
された油を計量する流量計と、流路の下流端に接続され
手動開閉弁と先端に吐出管とを備えたノズルと、ノズル
の吐出管が上方を向く姿勢で収納されるノズルケースと
、ノズルケースでのノズルの不存在を条件に前記ポンプ
を駆動させ、存在時に停止させる制御手段とからなる装
置において、前記流量計の下流側流路に繋がる小径の回
収室と前記流量計の上流側流路に繋がる大径の受圧室と
が形成されたシリンダと、それぞれの室内を液密状態で
摺動する１個のピストンと、このピストンを受圧室の方
向へ付勢する手段とを備えた残油回収装置と、前記ノズ
ルの前記手動開閉弁を迂回するバイパス路と、このバイ
パス路に設置され手動開閉弁の下流側から上流側への流
れをのみ許容する逆止弁とを備えたもので、ノズルをノ
ズルケースへ戻すとポンプの圧力が消失して回収室が拡
大されよってノズルにおいてバイパス路を介して吐出管
側の残油が回収され、次回ポンプ始動時に手動開閉弁が
開かれているとポンプ圧によって回収室が縮小されて回
収した残油が排出される。(C) Structure and operation for solving the problem The present invention attempts to solve the above problem by not discharging even if there is residual oil from the previous refueling until the pump is started. consists of a pump that pumps out oil, a flow meter that measures the pumped oil, a nozzle that is connected to the downstream end of the flow path and has a manual on/off valve, and a discharge pipe at the tip, and a nozzle with the discharge pipe facing upward. A device comprising a nozzle case housed in a position facing the flowmeter, and a control means for driving the pump when no nozzle is present in the nozzle case and stopping the pump when the nozzle is present, which is connected to a flow path downstream of the flowmeter. A cylinder in which a small-diameter recovery chamber and a large-diameter pressure receiving chamber connected to the upstream flow path of the flowmeter are formed, one piston that slides in each chamber in a liquid-tight state, and this piston is connected to the pressure receiving chamber. a residual oil recovery device comprising a means for biasing the manual on-off valve in the direction of the nozzle; a bypass passage that bypasses the manual on-off valve of the nozzle; When the nozzle is returned to the nozzle case, the pump pressure disappears and the recovery chamber is enlarged, allowing the remaining oil on the discharge pipe side to be recovered in the nozzle via the bypass path. If the manual on-off valve is opened the next time the pump is started, the pump pressure will reduce the size of the recovery chamber and discharge the recovered residual oil.
（ニ）実施例
第１図において、１はポンプでモーター２によって駆動
され図示しないタンクから吸引管３を介して油を汲み出
す。(D) Embodiment In FIG. 1, reference numeral 1 denotes a pump which is driven by a motor 2 and pumps out oil from a tank (not shown) through a suction pipe 3.
４はフィルター装置で、内部には濾材が収納されるとと
もに流路が拡張されていて油の流速が緩慢になるように
作られており、ここを通過する油に含まれる気泡は一部
の油と一緒に細管５を通って気体分離器６へ導かれる。4 is a filter device, which houses a filter medium and has an expanded flow path to slow down the flow of oil, and the air bubbles contained in the oil passing through this are It is led together with the gas through the capillary tube 5 to the gas separator 6.
気体分離器６内では気体と油とに完全に分離され、気体
は大気放出管７を介して大気へ、油は油面が一部レベル
まで上昇するとフロート８が上昇して戻り管９への流入
口が開かれるのでポンプ１の吸引力によって回収される
。Gas and oil are completely separated in the gas separator 6, and the gas is discharged to the atmosphere through the atmosphere discharge pipe 7, and the oil is discharged to the return pipe 9 by raising the float 8 when the oil level rises to a certain level. Since the inlet is opened, the water is collected by the suction force of the pump 1.
フィルター装置４から送り出された気泡を含まない油は
逆止弁１０を通過後、流量計１１．接続管１２．ホース
１３の順に流れ、ノズル１４から吐出される。The bubble-free oil sent out from the filter device 4 passes through the check valve 10 and then passes through the flow meter 11. Connecting pipe 12. The water flows through the hose 13 and is discharged from the nozzle 14.
１５は残油回収装置で、中心軸ｊを同じくする小径の回
収室１６と大径の受圧室１７とからなるシリンダ１８の
中に回収室１６の内壁１９に摺接する小径部２０と受圧
室１７の周壁２１に摺接する大径部２２とを有し、スプ
リング６５の作用で常時受圧室１７の方向へ付勢された
ピストン２３が設置されており、回収室１６は回収管２
４を介して接続管１２に、受圧室１７は受圧管２５を介
して逆止弁１０とフィルター装置４とを繋ぐ油管路に、
そしてピストン２３によって作られる回収室１６と受圧
室１７との間の大気室２６は大気管２７を介して気体分
離器６中の気相部にそれぞれ接続されている。Reference numeral 15 denotes a residual oil recovery device, which includes a small diameter portion 20 and a pressure receiving chamber 17 that slide into sliding contact with the inner wall 19 of the recovery chamber 16 in a cylinder 18 consisting of a small diameter recovery chamber 16 and a large diameter pressure receiving chamber 17 that share the same central axis j. A piston 23 is installed, which has a large diameter portion 22 in sliding contact with the peripheral wall 21 of the pipe 2, and is always urged in the direction of the pressure receiving chamber 17 by the action of a spring 65.
4 to the connecting pipe 12, and the pressure receiving chamber 17 to the oil pipe line connecting the check valve 10 and the filter device 4 via the pressure receiving pipe 25.
The atmospheric chambers 26 between the recovery chamber 16 and the pressure receiving chamber 17 formed by the piston 23 are connected to the gas phase portion in the gas separator 6 via atmospheric pipes 27, respectively.
ここで大気室２６が気体分離器６と接続されているのは
ピストン２３に設けられたシール用のＯリング２８．２
９のどちらかが破損して油が流入しても外部へ漏出させ
ることなく回収させるための工夫である。Here, the atmospheric chamber 26 is connected to the gas separator 6 by a sealing O-ring 28.2 provided on the piston 23.
This is a device that allows oil to be collected without leaking to the outside even if either of the parts 9 is damaged and oil flows in.
なおピストン２３の大径部２２の受圧面積は小径部２０
の受圧面積よりも大きく、両者の受圧面にポンプ圧力が
作用してもスプリング６５の付勢に抗して回収室１６の
方向へ移動させられるよう設定されている。The pressure receiving area of the large diameter portion 22 of the piston 23 is the same as that of the small diameter portion 20.
is larger than the pressure-receiving area of , and is set so that even if pump pressure acts on both pressure-receiving surfaces, it can be moved toward the recovery chamber 16 against the bias of the spring 65 .
３０は逆止弁１０を迂回するバイパス路で、逆止弁１０
の下流側の圧力が上昇したとき上流側へ逃がすためのリ
リーフ弁３１が設けられている。30 is a bypass path that bypasses the check valve 10;
A relief valve 31 is provided to release the pressure to the upstream side when the pressure on the downstream side increases.
３２はパルス発信器で、流量計１１が計量した油量に相
当する数の流路パルス信号ａを出力する。A pulse transmitter 32 outputs a number of channel pulse signals a corresponding to the amount of oil measured by the flow meter 11.
３３はノズル検知信号すを出力しているノズル検知スイ
ッチで、ノズルケース３４にノズル１４が掛は止められ
ているとその出力信号すがＬ（ロー）状態となり、外さ
れているとＨ（ハイ）状態となる。33 is a nozzle detection switch that outputs a nozzle detection signal. When the nozzle 14 is locked in the nozzle case 34, the output signal is L (low), and when it is disconnected, it is H (high). ) state.
３５は特開昭６４−５８６９７に示した油種センサーで
、ノズル１４の吐出管３６で開口した吸気管３７を介し
て吸引したガスを検出し、検知信号Ｃを出力する。Reference numeral 35 denotes an oil type sensor shown in Japanese Patent Laid-Open No. 64-58697, which detects the gas sucked in through the intake pipe 37 opened at the discharge pipe 36 of the nozzle 14, and outputs a detection signal C.
３８は給油量等を表示する表示器、３９は後述する電気
回路を収納した制御部、４０は吸引管３に設置された逆
止弁、６１は特公昭６ｍ−９１９５にみられるようなフ
ォトトランジスタ等を利用して外光の変化を検出するタ
イプの給油口センサーである。38 is a display that displays the amount of oil to be supplied, etc., 39 is a control unit that houses an electric circuit that will be described later, 40 is a check valve installed in the suction pipe 3, and 61 is a phototransistor as seen in the Tokuko Sho 6m-9195. This is a type of fuel filler sensor that detects changes in external light using
第２図において、４１は手動開閉弁で、レバー４２を支
軸４３を中心に図で反時計方向へ回転させると弁軸４４
がスプリング４５の付勢に抗して上方へ変位させられて
開かれる。In FIG. 2, reference numeral 41 is a manual opening/closing valve, and when the lever 42 is rotated counterclockwise in the figure around the support shaft 43, the valve shaft 44
is displaced upward against the bias of the spring 45 and opened.
４６は負圧発生弁で、スプリング４７によって油の流れ
に抗する方向に付勢されているが、油圧力によって下流
方向へ変位し、このとき作られる狭搾部４８を流れる油
によって負圧管４９に負圧が発生する。Reference numeral 46 denotes a negative pressure generating valve, which is biased by a spring 47 in a direction against the flow of oil, and is displaced in the downstream direction by hydraulic pressure, and the negative pressure pipe 49 is caused by the oil flowing through the narrowed portion 48 created at this time. Negative pressure is generated.
５０は自動閉弁機構で、負圧管４９において発生した負
圧は吐出管３６の先端で開口した空気吸込管５Ｉから吸
い込まれる空気によって打ち消されているが、油や泡の
上昇で空気の吸い込みが不能となると負圧管４９に繋が
ったダイアフラム室５１の負圧値が上昇し、ダイアフラ
ム５２がスプリング５３の付勢に抗して上方へ変位させ
られ、手動開閉弁４１が自動的に閉止される。Reference numeral 50 is an automatic valve closing mechanism, in which the negative pressure generated in the negative pressure pipe 49 is canceled by the air sucked in from the air suction pipe 5I opened at the tip of the discharge pipe 36, but the rise of oil and bubbles prevents the air from being sucked in. When this becomes impossible, the negative pressure value in the diaphragm chamber 51 connected to the negative pressure pipe 49 increases, the diaphragm 52 is displaced upward against the bias of the spring 53, and the manual on-off valve 41 is automatically closed.
この負圧発生の原理や自動閉弁の動作は公知なので詳述
を省略する。The principle of generating this negative pressure and the operation of automatic valve closing are well known and will not be described in detail.
５４は逆止弁で、手動開閉弁４１の上流側とその下流側
直近を繋ぐバイパス路５５に設置され、下流側から上流
側への流れをのみ許容する。Reference numeral 54 denotes a check valve, which is installed in a bypass passage 55 that connects the upstream side of the manual on-off valve 41 and the immediate downstream side thereof, and allows flow only from the downstream side to the upstream side.
５６は逆止弁で、手動開閉弁４１の上流側と負圧発生弁
４６の下流側直近とを繋ぐバイパス路５７に設置されて
おり、下流側から上流側への流れをのみ許容する。A check valve 56 is installed in a bypass passage 57 that connects the upstream side of the manual on-off valve 41 and the immediate downstream side of the negative pressure generating valve 46, and allows flow only from the downstream side to the upstream side.
ここで負圧発生弁４６の付いているノズルはバイパス路
５５は不要で、負圧発生弁４６の付いていないノズルす
なわち自動閉弁機構５０の付いていないノズルにあって
はバイパス路５７は不要となる。Here, a nozzle equipped with a negative pressure generation valve 46 does not require a bypass passage 55, and a nozzle without a negative pressure generation valve 46, that is, a nozzle without an automatic valve closing mechanism 50, does not require a bypass passage 57. becomes.
第３図において、６０は計数回路で、ノズル検知信号す
のＬ状態からＨ状態への変化で帰零され、流量パルス信
号ａの数を計数してその計数値を給油量信号ｄとして出
力し表示器３８に給油量を表示させる。In Fig. 3, 60 is a counting circuit which is returned to zero when the nozzle detection signal changes from the L state to the H state, counts the number of flow rate pulse signals a, and outputs the counted value as the oil supply amount signal d. The amount of refueling is displayed on the display 38.
６２は油種判定回路で、検知信号Ｃの値をもとに当該給
油装置と同油種であるか否かを判定し、同油種と判定し
たときには給油許可信号ｅ（ワンパルス）を出力する。Reference numeral 62 denotes an oil type determination circuit, which determines whether or not the oil type is the same as that of the relevant oil supply device based on the value of the detection signal C, and outputs a refueling permission signal e (one pulse) when it is determined that the oil type is the same. .
６３は給油口判定回路で、給油口センサー６１から出力
される検知信号ｒの出力状態をもとに吐出管３６が給油
ロヘセットされていると判定している間給油許可信号り
を出力し続ける。Reference numeral 63 denotes a refueling port determination circuit which continues to output a refueling permission signal while determining that the discharge pipe 36 is set to the refueling position based on the output state of the detection signal r output from the refueling port sensor 61.
６４はモーター制御回路で、ノズル検知信号すがＨ状態
であることを条件に給油許可信号ｅ、 ｈが人力され
ると付勢信号ｉを出力してモーター３を付勢し、ノズル
検知信号すのＬ状態への変化で付勢信号ｉの出力を停止
してモーター２を消勢させる。64 is a motor control circuit, which outputs an energizing signal i to energize the motor 3 when the refueling permission signals e and h are manually input on the condition that the nozzle detection signal is in the H state, and the nozzle detection signal is in the H state. When the output of the energizing signal i changes to the L state, the output of the energizing signal i is stopped and the motor 2 is deenergized.
以上の構成をもとに給油作業時の動作について以下説明
する。Based on the above configuration, the operation during refueling work will be described below.
給油待機時にはノズル１４が吐出管３６を上方へ向けた
姿勢でノズルケース３４へ掛は止められている。When on standby for refueling, the nozzle 14 is not hooked to the nozzle case 34 with the discharge pipe 36 facing upward.
この状態ではノズル検知スイッチ３３から出力されてい
るノズル検知信号すはＬ状態にあって、モーター２は消
勢状態にある。すなわち、ポンプｌが停止しているので
スプリング６５の付勢によってピストン２３が受圧室１
７の方向へ大きく変位させられた第１図の状態にある。In this state, the nozzle detection signal outputted from the nozzle detection switch 33 is in the L state, and the motor 2 is in the de-energized state. That is, since the pump l is stopped, the piston 23 is moved into the pressure receiving chamber 1 by the bias of the spring 65.
It is in the state shown in FIG. 1 in which it has been largely displaced in the direction of 7.
給油作業の開始にあたってまずノズル１４をノズルケー
ス３４から外すとノズル検知信号すがＬ状態からＨ状態
へと変化し、これを受けて計数回路６０の前回給油時の
計数値が帰零される。When the nozzle 14 is first removed from the nozzle case 34 at the start of refueling work, the nozzle detection signal changes from the L state to the H state, and in response to this, the count value of the counting circuit 60 from the previous refueling is reset to zero.
次にノズル１４の吐出管３６を図示しない自動車の給油
ロヘセットして手動開閉弁４１を開いておく。なおこの
ときポンプ１は駆動されていないので手動開閉弁４１を
開いても負圧発生弁４６が閉していて吐出管３６からの
油の流出は無い。Next, the discharge pipe 36 of the nozzle 14 is set to a refueling station of an automobile (not shown), and the manual on-off valve 41 is kept open. At this time, the pump 1 is not being driven, so even if the manual on-off valve 41 is opened, the negative pressure generating valve 46 is closed and no oil flows out from the discharge pipe 36.
そして、給油口へのセットによって給油口センサー６１
が検知信号ｆを出力し、これを受けて給油口判定回路６
３が給油許可信号りを出力する。Then, by setting it to the fuel filler port, the fuel filler sensor 61
outputs a detection signal f, and in response to this, the fuel filler determination circuit 6
3 outputs a refueling permission signal.
一方、油種センサー３５は吸気管３７を介して吸引した
ガスの成分から当該給油装置の油種と一致すると判定し
たとき給油許可信号ｅを出力す、る。On the other hand, the oil type sensor 35 outputs a refueling permission signal e when the oil type sensor 35 determines that the components of the gas sucked through the intake pipe 37 match the oil type of the oil supply device.
するとモーター制御回路６４はノズル検知信号すのＨ状
態と給油許可信号ｅ、ｈの同時存在が成立するので付勢
信号ｉを出力し、モーター２をすなわちポンプｌを回転
駆動さセて給油開始とする。Then, the motor control circuit 64 outputs the energizing signal i since the nozzle detection signal S is in the H state and the refueling permission signals e and h are simultaneously present, and the motor 2, that is, the pump l, is rotationally driven to start refueling. do.
このときポンプ圧力は受圧室１７に作用してスプリング
６５の付勢に抗してピストン２３を変位させ、回収室１
６内の油を回収管２４を介して接続管１２へ押し出す。At this time, the pump pressure acts on the pressure receiving chamber 17, displacing the piston 23 against the bias of the spring 65, and
6 is pushed out to the connecting pipe 12 via the recovery pipe 24.
押し出された油は流量計１１から送られてくる油と混り
、ノズル１４から吐出される。The pushed out oil mixes with the oil sent from the flow meter 11 and is discharged from the nozzle 14.
給油が進行するにつれて供給された油の量は表示器３８
で表示され、客の所望する給油量に達すると作業者は手
動開閉弁１４を閉じて給油を終了することになるが、こ
のとき吐出管３６内に油が残留していても、ノズル１４
をノズルケース３４へ戻すことによってポンプが停止し
、ポンプ圧力が消失してその結果スプリング６５の作用
でピストン２３が回収室１６の容積を拡大する方向に変
位してホース１３内に負圧を生ぜしめ、ノズル１４の負
圧発生弁４６の下流直近の流路６６に残った油をバイパ
ス管５７を介して流路６７内へ吸い込ませることになる
。As refueling progresses, the amount of oil supplied is displayed on the display 38.
When the oil supply amount desired by the customer is reached, the operator closes the manual on-off valve 14 to finish the oil supply. At this time, even if oil remains in the discharge pipe 36, the nozzle 14
When the pump is returned to the nozzle case 34, the pump stops, the pump pressure disappears, and as a result, the piston 23 is displaced in the direction of expanding the volume of the collection chamber 16 by the action of the spring 65, creating negative pressure inside the hose 13. Then, the oil remaining in the flow path 66 immediately downstream of the negative pressure generating valve 46 of the nozzle 14 is sucked into the flow path 67 via the bypass pipe 57.
よって流路６６内の残油は流路６７側へ回収され、この
状態で次の来客まで待機する。Therefore, the remaining oil in the flow path 66 is collected to the flow path 67 side, and waits in this state until the next visitor.
なお、本実施例のように手動開閉弁４１の下流。Note that, as in this embodiment, the downstream side of the manual on-off valve 41.
に負圧発生弁４６が設けられている場合にはバイパス路
５５は不要である。When the negative pressure generating valve 46 is provided, the bypass passage 55 is not necessary.
次回給油時には前記したようにポンプ１が始動されるこ
とによって回収室１６の容積縮小すなわち回収した油の
排出が行なわれることになる。At the next time of refueling, the pump 1 is started as described above, thereby reducing the volume of the recovery chamber 16, that is, discharging the recovered oil.
以上実施例を説明したが、本願発明はこれに限定される
ものではなく、以下その変形例を示す。Although the embodiments have been described above, the present invention is not limited thereto, and modifications thereof will be shown below.
■ノズル１４には第２図に示したような自動閉弁機構５
０の付いたものとそうでないものとがあり、付いていな
いものは負圧発生弁４６が無いのでその場合にはバイパ
ス路５７に代えてバイパス路５５が採用される。■The nozzle 14 has an automatic valve closing mechanism 5 as shown in Fig. 2.
There are some with 0 and others without, and those without 0 do not have the negative pressure generating valve 46, so in that case, the bypass path 55 is used instead of the bypass path 57.
■本実施例では油種センサー３５と給油口センサー６１
が設けられ、両センサーの検知信号ｃ、ｆをもとに給油
許可信号ｅ、ｈが出力されていることとノズル検知信号
すのＨ状態とをモーター２の付勢条件としているが、両
センサーの内どちらか一方をのみ設置してそのセンサー
の検出信号に基ずく給油許可信号とノズル検知信号すの
Ｈ状態との共存を条件としても良い。■In this embodiment, the oil type sensor 35 and the oil filler port sensor 61
is provided, and the conditions for energizing the motor 2 are that the refueling permission signals e and h are output based on the detection signals c and f of both sensors, and that the nozzle detection signal is in the H state. Only one of them may be installed, and the refueling permission signal based on the detection signal of the sensor and the H state of the nozzle detection signal may coexist as a condition.
■油種センサー３５や給油口センサーを設けず単にノズ
ル検知信号すのＬ状態への変化のみを条件にモーター２
を付勢させるようにしても良い。■Without providing oil type sensor 35 or oil filler port sensor, motor 2 is simply conditioned on the change of nozzle detection signal to L state.
It may be made to energize.
この場合にはノズルの手動開閉弁を開くとただちに油吐
出が始まることになる。In this case, oil discharge will begin immediately when the manual on-off valve of the nozzle is opened.
（ホ）効果
以上詳述したようにノズルの手動開閉弁の上下流間をバ
イパス路で連絡するとともに下流側から上流側への流れ
のみ許容された逆止弁を設け、ポンプ圧で作動する残油
回収装置を設けたので、ポンプ停止によって吐出管内の
残油が回収され、ポンプ付勢によって排出されることに
なり、残油による自動車の汚損や事故さらには残油を自
動車の使用油種と間違って異なった油種を給油してしま
うトラブルの発生も有効に防止できる。(e) Effects As detailed above, the upstream and downstream sides of the manual on-off valve of the nozzle are connected by a bypass path, and a check valve that only allows flow from the downstream side to the upstream side is installed, and the residual valve operated by pump pressure is installed. Since we have installed an oil recovery device, the residual oil in the discharge pipe is collected when the pump is stopped and discharged when the pump is activated. This prevents car contamination and accidents due to residual oil, and also prevents residual oil from changing the type of oil used in the car. It is also possible to effectively prevent troubles caused by incorrectly refueling with the wrong type of oil.
第１図は給油装置とその要部を断面で示した図、第２図
はノズルの構造を示す図、第３図は制御部における電気
回路をブロック化ｔ７で示した図である。
■・・・ポンプ ４・・・フィルター装置６・・・空気
分離器 ８・・・フロー） １４・・・ノズル１５・
・・残油回収装置 １６・・・回収室１７・・・受圧室
２３・・・ピストン ３６・・・吐出管４１・・・手
動開閉弁 ４６・・・負圧発生弁５０・・・自動閉弁
機構 ５４．５６・・・逆止弁５５５７・・・バイパス
路FIG. 1 is a cross-sectional view of the oil supply device and its main parts, FIG. 2 is a diagram showing the structure of the nozzle, and FIG. 3 is a diagram showing the electric circuit in the control section as a block t7. ■... Pump 4... Filter device 6... Air separator 8... Flow) 14... Nozzle 15.
... Residual oil recovery device 16 ... Recovery chamber 17 ... Pressure receiving chamber 23 ... Piston 36 ... Discharge pipe 41 ... Manual on-off valve 46 ... Negative pressure generation valve 50 ... Automatically close Valve mechanism 54.56...Check valve 5557...Bypass path
Claims (1)
量計と、流路の下流端に接続され手動開閉弁と先端に吐
出管とを備えたノズルと、ノズルの吐出管が上方を向く
姿勢で収納されるノズルケースと、ノズルケースでの不
存在を条件に前記ポンプを駆動させ、存在時に停止させ
る制御手段とからなる装置において、前記流量計の下流
側流路に繋がる小径の回収室と前記流量計の上流側流路
に繋がる大径の受圧室とが形成されたシリンダと、それ
ぞれの室内を液密状態で摺動する１個のピストンと、こ
のピストンを受圧室の方向へ付勢する手段とを備えた残
油回収装置と、前記ノズルの前記手動開閉弁を迂回する
バイパス路と、このバイパス路に設置され手動開閉弁の
下流側から上流側への流れをのみ許容する逆止弁とを備
えた残油回収装置付給油装置。A pump that pumps out oil, a flow meter that measures the pumped oil, a nozzle connected to the downstream end of the flow path and equipped with a manual on-off valve and a discharge pipe at the tip, and the discharge pipe of the nozzle facing upward. A device comprising a nozzle case stored in a posture, and a control means that drives the pump on the condition that the nozzle case is not present and stops the pump when the nozzle case is present. and a large-diameter pressure receiving chamber connected to the upstream flow path of the flowmeter, a piston that slides in each chamber in a liquid-tight state, and this piston is attached in the direction of the pressure receiving chamber. a residual oil recovery device having a means for controlling the manual on-off valve, a bypass path that bypasses the manual on-off valve of the nozzle, and a reverse oil recovery device installed in the bypass path that allows flow only from the downstream side of the manual on-off valve to the upstream side of the manual on-off valve. A refueling device with a residual oil recovery device equipped with a stop valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20174589A JPH0669839B2 (en) | 1989-08-03 | 1989-08-03 | Oil supply device with residual oil recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20174589A JPH0669839B2 (en) | 1989-08-03 | 1989-08-03 | Oil supply device with residual oil recovery device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0369442A true JPH0369442A (en) | 1991-03-25 |
| JPH0669839B2 JPH0669839B2 (en) | 1994-09-07 |
Family
ID=16446241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20174589A Expired - Lifetime JPH0669839B2 (en) | 1989-08-03 | 1989-08-03 | Oil supply device with residual oil recovery device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0669839B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8430117B2 (en) * | 2010-04-26 | 2013-04-30 | Michael J. Mitrovich | Refueling apparatus |
-
1989
- 1989-08-03 JP JP20174589A patent/JPH0669839B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0669839B2 (en) | 1994-09-07 |
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