JP2945986B2 - Gas fuel pressure regulator - Google Patents
Gas fuel pressure regulatorInfo
- Publication number
- JP2945986B2 JP2945986B2 JP20187890A JP20187890A JP2945986B2 JP 2945986 B2 JP2945986 B2 JP 2945986B2 JP 20187890 A JP20187890 A JP 20187890A JP 20187890 A JP20187890 A JP 20187890A JP 2945986 B2 JP2945986 B2 JP 2945986B2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- gas fuel
- chamber
- actuator
- regulating chamber
- 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 - Fee Related
Links
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Magnetically Actuated Valves (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は内燃機関、燃焼器などに一定圧力の気体燃料
を供給するための圧力調整装置に関するものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure regulator for supplying gaseous fuel at a constant pressure to an internal combustion engine, a combustor, or the like.
［従来の技術］ LPGや都市ガスのような気体燃料を内燃機関、燃焼器
などの目的機器に供給し燃焼させるにあたり、所定の一
定圧力に調整することは周知の技術であって、LPGの場
合は適宜の正圧に減圧してから調圧室（二次室）に計量
弁（二次弁）の開弁時に導入し、都市ガスの場合はその
まま調圧室に計量弁の開弁時に導入し、計量弁が、調圧
室の圧力を感知して変位するダイヤフラムによって開閉
動作することによって調圧室を常に一定圧力としている
（LPGは例えば特公昭39−26224号公報を、都市ガスは例
えば実開昭60−180754号公報を参照）。即ち、正圧の気
体燃料を調圧室に送入する導入路の調圧室への開口端を
調圧室に内蔵した計量弁で開閉する動作を、調圧室の気
体燃料の圧力変動に応じて変位するダイヤフラムによっ
て行なわせるものであるが、特に内燃機関用LPGのよう
に微小範囲内の一定圧力に維持する必要がある場合はダ
イヤフラムのヒステレシスが圧力を狂わせることがあ
り、また一般的にダイヤフラムの経時劣化により調整圧
力値が変化するのを免かれない。[Prior art] When supplying gaseous fuel such as LPG or city gas to a target device such as an internal combustion engine or a combustor and burning it, it is a well-known technology to adjust the pressure to a predetermined constant pressure. Is introduced to the pressure control chamber (secondary chamber) when the metering valve (secondary valve) is opened, and is introduced to the city gas as it is when the metering valve is opened. The pressure regulating chamber is always kept at a constant pressure by the metering valve being opened and closed by a diaphragm which is displaced by sensing the pressure of the pressure regulating chamber (LPG is disclosed in, for example, Japanese Patent Publication No. 39-26224, and city gas is disclosed in See Japanese Utility Model Laid-Open No. 60-180754). That is, the operation of opening and closing the opening end of the introduction path for introducing the positive-pressure gaseous fuel into the pressure regulation chamber with the metering valve built in the pressure regulation chamber is performed in accordance with the pressure fluctuation of the gaseous fuel in the pressure regulation chamber. This is performed by a diaphragm that is displaced in response to the pressure.However, particularly when it is necessary to maintain a constant pressure within a small range as in the case of an LPG for an internal combustion engine, the hysteresis of the diaphragm may change the pressure. It is inevitable that the adjustment pressure value changes due to the deterioration with time of the diaphragm.
［発明が解決しようとする課題］ 本発明が解決しようとする課題は、計量弁をダイヤフ
ラムで開閉動作させる圧力調整手段では、ダイヤフラム
のヒステレシスや経時劣化により精密且つ安定した圧力
調整が行なえない、という点である。[Problem to be Solved by the Invention] A problem to be solved by the present invention is that pressure adjustment means for opening and closing a metering valve with a diaphragm cannot perform precise and stable pressure adjustment due to hysteresis and aging of the diaphragm. Is a point.
そこで、本発明はダイヤフラムに代えて計量弁を電磁
気力で作動するアクチュエータで開閉動作させることに
よって気体燃料の精密且つ安定した圧力調整を行なわせ
ようとするものである。Therefore, the present invention is intended to perform precise and stable pressure adjustment of gaseous fuel by opening and closing a metering valve by an actuator operated by electromagnetic force instead of a diaphragm.
［課題を解決するための手段］ 前記課題を解決するための手段として、計量弁を開閉
動作させるアクチュエータに電磁気力で作動する機器を
用いるとともに、調圧室の圧力を検出する圧力センサと
その圧力信号に基いてアクチュエータに駆動信号を送る
電子式制御器とを具えさせた。[Means for Solving the Problems] As means for solving the above problems, a device that operates with an electromagnetic force for an actuator that opens and closes a metering valve is used, and a pressure sensor that detects the pressure of a pressure regulation chamber and its pressure An electronic controller for sending a drive signal to the actuator based on the signal.
また、前記に加えて調圧室の容積を圧力変動に応じて
可変とするダイヤフラムを具えさせた。尚、アクチュエ
ータは電磁石またはステッピングモータが用いられる。Further, in addition to the above, a diaphragm for changing the volume of the pressure regulating chamber in accordance with the pressure fluctuation is provided. Note that an electromagnet or a stepping motor is used as the actuator.
［作用］ 調圧室の圧力が変動すると圧力センサの圧力信号に基
いて電子式制御器がアクチュエータに駆動信号を送って
計量弁を開閉動作させ、調圧室へ送入される正圧の気体
燃料を制御することによって調圧室を一定圧力に維持す
る。[Operation] When the pressure in the pressure control chamber fluctuates, the electronic controller sends a drive signal to the actuator based on the pressure signal of the pressure sensor to open and close the metering valve, and the positive pressure gas sent to the pressure control chamber. The pressure regulation chamber is maintained at a constant pressure by controlling the fuel.
調圧室はダイヤフラムを具えたときは圧力脈動を吸収
し圧力を安定化する。When the pressure regulating chamber has a diaphragm, it absorbs pressure pulsation and stabilizes the pressure.
［実施例］ 本発明の実施例を図面に基いて説明すると、ケーシン
グ１の内部に導入路２を有する仕切壁３が設けられてそ
の両側が気体燃料の入口室４と調圧室５とを形成してお
り、入口室４はケーシング１に設けた気体燃料の送入路
６が接続されているとともに開放端を電磁石７によって
塞がれている。[Embodiment] An embodiment of the present invention will be described with reference to the drawings. A partition wall 3 having an introduction passage 2 is provided inside a casing 1 and both sides thereof are connected to a gas fuel inlet chamber 4 and a pressure regulating chamber 5. The inlet chamber 4 is connected to a gas fuel supply passage 6 provided in the casing 1 and has an open end closed by an electromagnet 7.
電磁石７は電磁コイル８の中心に磁極片９と鉄心10と
を配置しこれらの間に戻しばね11を装入した通常の構成
であり、鉄心10と一体の弁棒10aの先端に計量弁12が取
付けられていて導入路２の入口端を開閉するようになっ
ている。即ち、電磁コイル８に通電すると鉄心10が磁極
片９に吸着して計量弁12を開弁し、電磁コイル８の通電
を停止すると戻しばね11のばね力で計量弁12を閉弁させ
るものである。調圧室５はケーシング１に取付けた圧力
センサ13とダイヤフラム16とを有しているとともに開放
端を送出路21を具えたカバー体22によって塞がれてい
る。圧力センサ13はアネロイド形、半導体ピエゾ抵抗
形、表面弾性波形など適宜のものを用いることができ、
その感圧部は絞り14を有する検出路15によって調圧室５
の圧力を検出するようになっている。この絞り14は調圧
室５の圧力が急変してもその変動を緩和して圧力センサ
13に感知させ圧力信号を安定化するため設けたものであ
る。The electromagnet 7 has a normal configuration in which a magnetic pole piece 9 and an iron core 10 are arranged at the center of an electromagnetic coil 8 and a return spring 11 is inserted between the pole pieces 9 and an iron core 10. Is mounted to open and close the entrance end of the introduction path 2. That is, when the electromagnetic coil 8 is energized, the iron core 10 is attracted to the magnetic pole piece 9 to open the measuring valve 12, and when the energizing of the electromagnetic coil 8 is stopped, the measuring valve 12 is closed by the spring force of the return spring 11. is there. The pressure regulating chamber 5 has a pressure sensor 13 and a diaphragm 16 attached to the casing 1 and has an open end closed by a cover 22 having a delivery path 21. As the pressure sensor 13, an appropriate one such as an aneroid type, a semiconductor piezoresistive type, and a surface elastic waveform can be used.
The pressure sensing part is controlled by the detection path 15 having the throttle 14 by the pressure regulating chamber 5.
Pressure is detected. This restrictor 14 reduces the fluctuation of the pressure in the pressure regulating chamber 5 even if the pressure suddenly changes.
It is provided to stabilize the pressure signal by making it sense at 13.
また、ダイヤフラム16は周縁部をケーシング１と大気
孔17を有するダイヤフラムカバー18とによって固定さ
れ、その一方は調圧室５に連通した調整室19を形成して
いるとともにもう一方は大気室20を形成している。この
ダイヤフラム16は調圧室５の気体燃料圧力と大気圧力と
の差圧力によって自由に変位し、気体燃料圧力が低下す
ると調整室19の容積を小さくし上昇すると調圧室19の容
積を大きくして調圧室５の圧力脈動を吸収し圧力を安定
化するのに役立つ。Further, the diaphragm 16 has its peripheral edge fixed by the casing 1 and a diaphragm cover 18 having an air hole 17, one of which forms an adjustment chamber 19 communicating with the pressure regulating chamber 5, and the other of which forms the air chamber 20. Has formed. The diaphragm 16 is freely displaced by the pressure difference between the gaseous fuel pressure in the pressure regulating chamber 5 and the atmospheric pressure. When the gaseous fuel pressure decreases, the volume of the regulating chamber 19 decreases, and when the gaseous pressure rises, the volume of the pressure regulating chamber 19 increases. Thus, the pressure pulsation of the pressure regulating chamber 5 is absorbed and the pressure is stabilized.
尚、調圧室５の気体燃料を目的機器へ供給する送出路
21は流量規制用の絞り23を具えているが、これは省略し
ても差支えない。Note that a delivery path for supplying gaseous fuel in the pressure regulating chamber 5 to a target device.
Although 21 is provided with a throttle 23 for regulating the flow rate, this may be omitted.
圧力センサ13が発する電気的な圧力信号は信号線24に
よってマイクロコンピュータのような電子式制御器25に
送られ、学習演算により開弁状態または閉弁状態に保持
させて調圧室５を所定の一定圧力にするか、または所定
デューティ比で開閉させて調圧室５を所定の一定圧力に
するような駆動信号が作られる。この駆動信号は信号線
26によって電磁コイル８に送られ計量弁12を開閉動作さ
せる。An electric pressure signal generated by the pressure sensor 13 is sent to an electronic controller 25 such as a microcomputer via a signal line 24, and is held in a valve-open state or a valve-closed state by a learning operation to set the pressure regulating chamber 5 to a predetermined value. A drive signal is generated such that the pressure is adjusted to a constant pressure, or the pressure control chamber 5 is opened and closed at a predetermined duty ratio to set the pressure regulating chamber 5 to a predetermined constant pressure. This drive signal is a signal line
It is sent to the electromagnetic coil 8 by 26 to open and close the metering valve 12.
アクチュエータは電磁石７の代りにリニア形のステッ
ピングモータで構成する場合もある。このときはステッ
ピングモータの直線往復動する出力軸に計量弁12が取付
けられ、導入路２を全閉と全開の間で無段階に開度調節
し調圧室５を所定の一定圧力に維持する。The actuator may be constituted by a linear stepping motor instead of the electromagnet 7. At this time, the metering valve 12 is attached to the output shaft that reciprocates linearly of the stepping motor, and the opening degree of the introduction path 2 is continuously adjusted between the fully closed state and the fully opened state to maintain the pressure regulating chamber 5 at a predetermined constant pressure. .
尚、気体燃料が都市ガスのときは比較的低い正圧であ
るのでそのまま入口室４に送入できることは勿論である
が、高圧のLPGであっても計量弁12を電磁気力で動作さ
せているのでそのまま入口室４に送入することができ
る。また、燃料流量が増加すると、調圧室５の圧力は計
量弁12をダイヤフラムで動作させる従来方式では次第に
高くなる傾向にあるが、圧力を検出してアクチュエータ
にフィードバックする本発明方式では燃料流量の変動が
あっても常に一定圧力に維持することができる。When the gaseous fuel is city gas, it has a relatively low positive pressure, so that it can be sent directly to the inlet chamber 4 as a matter of course. However, even with a high-pressure LPG, the metering valve 12 is operated by electromagnetic force. Therefore, it can be sent to the entrance room 4 as it is. When the fuel flow rate increases, the pressure in the pressure regulating chamber 5 tends to gradually increase in the conventional method in which the metering valve 12 is operated by the diaphragm. However, in the present invention method in which the pressure is detected and fed back to the actuator, the fuel flow rate is increased. Even if there is a fluctuation, it is possible to always maintain a constant pressure.
［発明の効果］ 本発明によると、調圧室の圧力を検出して計量弁のア
クチュエータにフィードバックする構成であるから、ヒ
ステレシスや経時劣化がなく安定した開閉動作を行なわ
せ、流量変動があっても所定の一定圧力に精密且つ安定
よく調整することができ、更に調圧室の容積をダイヤフ
ラムで可変とする構成であるから、圧力脈動を吸収し調
圧室の圧力が安定可され圧力調整が更に精度よく行なわ
れる。[Effects of the Invention] According to the present invention, since the pressure in the pressure regulating chamber is detected and fed back to the actuator of the metering valve, a stable opening / closing operation without hysteresis or deterioration with time is performed, and there is a fluctuation in flow rate. The pressure can be adjusted to a predetermined constant pressure precisely and stably, and the volume of the pressure control chamber is made variable by the diaphragm. It is performed more precisely.
【図面の簡単な説明】 図面は本発明の実施例を示す縦断面図である。 １……ケーシング、２……導入路、５……調圧室、７…
…電磁石、12……計量弁、13……圧力センサ、16……ダ
イヤフラム、21……送出路、25……電子式制御器、BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention. 1 ... casing, 2 ... introduction path, 5 ... pressure regulation chamber, 7 ...
... Electromagnet, 12 ... Measuring valve, 13 ... Pressure sensor, 16 ... Diaphragm, 21 ... Sending path, 25 ... Electronic controller,
Claims (4)
力の気体燃料を目的機器へ供給する送出路とが接続され
た調圧室と、前記導入路を開閉する計量弁とを有する気
体燃料の圧力調整装置において、前記計量弁を開閉動作
させるための電磁気力で作動するアクチュエータと、前
記調圧室の圧力を検出する圧力センサと、前記圧力セン
サの圧力信号に基いて前記アクチュエータに駆動信号を
送る電子式制御器とを具えたことを特徴とする圧力調整
装置。1. A pressure regulating chamber in which an introduction path for feeding gas fuel at a positive pressure and a delivery path for supplying gas fuel at a constant pressure to a target device are connected, and a metering valve for opening and closing the introduction path. A pressure regulating device for the gaseous fuel having an actuator operated by electromagnetic force for opening and closing the metering valve, a pressure sensor for detecting a pressure in the pressure regulating chamber, and the actuator based on a pressure signal of the pressure sensor. And an electronic controller for sending a drive signal to the pressure controller.
積を圧力変動に応じて可変とするダイヤフラムを具えた
ことを特徴とする気体燃料の圧力調整装置。2. A gas fuel pressure adjusting device according to claim 1, further comprising a diaphragm for changing the volume of the pressure regulating chamber in accordance with the pressure fluctuation.
２いずれかに記載の気体燃料の圧力調整装置。3. The method according to claim 1, wherein the actuator is an electromagnet.
3. The pressure adjusting device for gaseous fuel according to claim 2.
る請求項１、２いずれかに記載の気体燃料の圧力調整装
置。4. The gas fuel pressure adjusting device according to claim 1, wherein the actuator is a stepping motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20187890A JP2945986B2 (en) | 1990-07-30 | 1990-07-30 | Gas fuel pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20187890A JP2945986B2 (en) | 1990-07-30 | 1990-07-30 | Gas fuel pressure regulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0486362A JPH0486362A (en) | 1992-03-18 |
| JP2945986B2 true JP2945986B2 (en) | 1999-09-06 |
Family
ID=16448362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20187890A Expired - Fee Related JP2945986B2 (en) | 1990-07-30 | 1990-07-30 | Gas fuel pressure regulator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2945986B2 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1267437B1 (en) * | 1994-06-03 | 1997-02-05 | Fiat Ricerche | ELECTRONICALLY CONTROLLED PRESSURE REGULATOR DEVICE FOR INTERNAL COMBUSTION ENGINES FUELED BY GAS, IN PARTICULAR WITH CNG. |
| US6257000B1 (en) * | 2000-03-22 | 2001-07-10 | Luping Wang | Fluid storage and dispensing system featuring interiorly disposed and exteriorly adjustable regulator for high flow dispensing of gas |
| KR100827989B1 (en) * | 2007-04-03 | 2008-05-07 | (주)모토닉 | Apparatus for fuel supply |
| KR100827984B1 (en) * | 2007-04-03 | 2008-05-07 | (주)모토닉 | Apparatus for raise the pressure of gas fuel vehicle |
| WO2011160105A2 (en) | 2010-06-18 | 2011-12-22 | Advanced Technology Materials, Inc. | Endpoint determination for capillary-assisted flow control |
| JP5416676B2 (en) * | 2010-10-19 | 2014-02-12 | 川崎重工業株式会社 | Fuel gas supply system for gas engine |
| JP5427158B2 (en) | 2010-10-19 | 2014-02-26 | 川崎重工業株式会社 | Fuel gas supply and filling system |
| CN102278238B (en) * | 2011-06-04 | 2012-10-03 | 四川红光汽车机电有限公司 | Electromagnetic three-way pressure control valve |
| CN104813095B (en) * | 2012-09-21 | 2018-05-01 | 恩特格里斯公司 | Pressure adjusts the anti-spike stress management of fluid storage and transport box |
| CN116576281B (en) * | 2023-07-13 | 2023-09-15 | 艾肯（江苏）工业技术有限公司 | Circulation opposite-flushing type flow regulating valve |
-
1990
- 1990-07-30 JP JP20187890A patent/JP2945986B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0486362A (en) | 1992-03-18 |
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