JPS6260970A - Working medium pressure controller for stiring engine - Google Patents

Working medium pressure controller for stiring engine

Info

Publication number
JPS6260970A
JPS6260970A JP20121585A JP20121585A JPS6260970A JP S6260970 A JPS6260970 A JP S6260970A JP 20121585 A JP20121585 A JP 20121585A JP 20121585 A JP20121585 A JP 20121585A JP S6260970 A JPS6260970 A JP S6260970A
Authority
JP
Japan
Prior art keywords
engine
valve
pressure
pipe line
working medium
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
Application number
JP20121585A
Other languages
Japanese (ja)
Other versions
JPH0330716B2 (en
Inventor
Masaru Tsunekawa
恒川　勝
Yoshihiro Naito
喜裕 内藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aisin Corp
Original Assignee
Aisin Seiki Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Aisin Seiki Co Ltd filed Critical Aisin Seiki Co Ltd
Priority to JP20121585A priority Critical patent/JPS6260970A/en
Publication of JPS6260970A publication Critical patent/JPS6260970A/en
Publication of JPH0330716B2 publication Critical patent/JPH0330716B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G2243/00—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes

Landscapes

  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

PURPOSE:To prevent an engine from stalling at the time of deceleration, by installing a solenoid-operated control valve, regulating an idling speed properly, in a passage bypassing a pressure reducing valve, at the time of performing output control in a way of interlocking operations for feeding a working medium from the outside and exhausting it to the outside. CONSTITUTION:A pipe line 7 feeding gas out of a tank 9 and a pipe line 4 exhausting the gas with a pump 3 both are installed in each cylinder of a Stirling engine, and both throttle valves 12 and 13 in the midway of each pipe line are interlocked with each other via a rod 11, whereby feed and decompression of a working medium are carried out by movements of the rod 11, thus output control takes place. There is provided with a pipe line 29 which bypasses a throttle valve body 5 at the decompression side and equips a solenoid valve 28, and with a signal out of an idle detector 19 at an end of the rod 11 and an engine speed signal, a controller 22 opens or closes the solenoid valve 28 and controls it so as to make an idling speed come to properness. With this constitution, the engine is not case stopped because the idling speed drops too much at the time of engine deceleration.

Description

【発明の詳細な説明】 〔発明の目的〕 （産業上の利用分野） 本発明はスターリング機関の作動ガス圧力制御装置に関
し、特に詳述すれば、アイドリング回転数より高い時に
減圧弁と並列に設けた電磁弁を開とさせ、作動ガス圧力
を下げるスターリング機関の作動ガス圧力制御装置に関
する。本発明はスターリング機関を自動車等の車輌に搭
載した場合のエンジンブレーキの効き具合の向上および
アイドリング回転数の安定化に有効に利用できる。[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a working gas pressure control device for a Stirling engine. This invention relates to a working gas pressure control device for a Stirling engine that opens a solenoid valve to lower the working gas pressure. The present invention can be effectively used to improve the effectiveness of engine braking and stabilize the idling speed when a Stirling engine is mounted on a vehicle such as an automobile.

（従来の技術） 外燃機関であるスターリング機関の出力は、作動ガスを
封入した作動空間内の圧によって決められる。たとえば
、スターリング機関の出力を高める時は作動空間内の作
動ガス圧を上昇させる。このようなスターリング機関の
出力制御装置の代表的従来例を第３図に示す（特開昭４
６−２３５３４号公報参照）。スターリング機関の作動
空間１を、逆止弁２を介して圧縮機３に最高サイクル圧
ライン４およびライン１５によって連結させる。(Prior Art) The output of a Stirling engine, which is an external combustion engine, is determined by the pressure within a working space filled with working gas. For example, when increasing the output of a Stirling engine, the working gas pressure in the working space is increased. A typical conventional example of such a Stirling engine output control device is shown in FIG.
6-23534). The working space 1 of the Stirling engine is connected via a check valve 2 to a compressor 3 by a maximum cycle pressure line 4 and a line 15 .

該ライン４とライン１５とは減圧弁５で連結する。The line 4 and line 15 are connected through a pressure reducing valve 5.

又、作動空間１は、逆止弁６を介して最低サイクル圧ラ
イン７およびライン１６によって圧縮き３に連結される
。該ライン７とライン１６とは増圧弁８で連結する。９
は高圧タンクを示す。The working space 1 is also connected to the compressor 3 by a minimum cycle pressure line 7 and a line 16 via a check valve 6 . The line 7 and line 16 are connected by a pressure increase valve 8. 9
indicates a high pressure tank.

増圧弁８の下流側をフィードバックピストンシリンダ１
０に接続し、該シリンダ１０内のピストンを操作レバー
となるアクセルレバ−１１の端部にロッドを介して連結
する。アクセルレバ−１１は、増減弁８．５の弁棒１２
，１３と対向する。The downstream side of the pressure increase valve 8 is connected to the feedback piston cylinder 1.
0, and the piston in the cylinder 10 is connected to the end of an accelerator lever 11, which serves as an operating lever, via a rod. The accelerator lever 11 is connected to the valve stem 12 of the increase/decrease valve 8.5.
, 13.

フィードバックピストンシリンダ１０は、最低サイクル
圧ライン７の圧に応じてピストンが動き、アクセルレバ
−１１の支点１４の位置を変位させる働きをする。The feedback piston cylinder 10 has a piston that moves according to the pressure of the lowest cycle pressure line 7, and functions to displace the position of the fulcrum 14 of the accelerator lever 11.

スターリング機関の出力を増大させる時は、アクセルレ
バ−１１を左方向に押し増圧弁８を開とさせ、高圧作動
ガスを圧縮器３或いはタンク９から作動空間１に供給す
る。又、スターリング機関の出力を下げる時は、アクセ
ルレバ−１１を右方向に押し、減圧弁５を開とさせ、作
動空間１の圧を圧縮機３側に抜き減圧させる。定常運転
である出力の増減が安定域（所定値）に入ると、可動支
点１４の変位により増減圧弁８．５が閉じる。When increasing the output of the Stirling engine, the accelerator lever 11 is pushed to the left to open the pressure increase valve 8, and high-pressure working gas is supplied from the compressor 3 or tank 9 to the working space 1. Further, when lowering the output of the Stirling engine, the accelerator lever 11 is pushed to the right to open the pressure reducing valve 5, and the pressure in the working space 1 is released to the compressor 3 side to reduce the pressure. When the increase/decrease in output enters a stable range (predetermined value) during steady operation, the pressure increase/decrease valve 8.5 closes due to the displacement of the movable fulcrum 14.

（発明が解決しようとする問題点） ところで、減速運転時減圧弁５が開き、圧縮機３により
作動空間１の圧は減圧されるが、アイドリング時の設定
圧力近傍まで減圧されてくるとフィードバックピストン
シリンダ１０内のピストンが左方向に移動するため減圧
弁５は徐々に閉じ減圧速度が遅くなり、機関回転数はア
イドリング回転数より高くなる。このためエンジンブレ
ーキの効きが悪く走行フィーリングが悪い。さらに、ア
イドリング回転数まで機関回転数が落ちるまでに長い時
間を要し、運転操作が難しいという不具合があった。(Problem to be Solved by the Invention) By the way, during deceleration operation, the pressure reducing valve 5 opens and the pressure in the working space 1 is reduced by the compressor 3. However, when the pressure is reduced to near the set pressure during idling, the feedback piston Since the piston in the cylinder 10 moves to the left, the pressure reducing valve 5 gradually closes and the pressure reducing speed becomes slower, and the engine speed becomes higher than the idling speed. As a result, engine braking is not effective and driving feeling is poor. Furthermore, there was a problem in that it took a long time for the engine speed to drop to the idling speed, making it difficult to operate.

それ故に、本発明は、前述した従来技術の不具合を解消
させることを、解決すべき技術的課題とする。Therefore, the technical problem to be solved by the present invention is to eliminate the above-mentioned problems of the prior art.

〔発明の構成〕[Structure of the invention]

（問題点を解決するための手段） 上記した技術的課題を解決する為に、本発明において講
じた技術的手段は、減圧弁と並列に電磁弁を配し、アク
セルレバ−がアイド・リング位置にあり、機関回転数が
アイドリング回転数より高くなったとき該電磁弁を開と
せしめるようにしたことである。(Means for Solving the Problems) In order to solve the above-mentioned technical problems, the technical measures taken in the present invention are to arrange a solenoid valve in parallel with the pressure reducing valve, and to move the accelerator lever to the idle ring position. The solenoid valve is opened when the engine speed becomes higher than the idling speed.

（作用） 上記技術的手段は、次のように作用する。すなわち、減
速運転時、アクセルレバ−がアイドリング位置にあれば
電磁弁が開き圧縮機により作動空間内の作動ガスは機関
回転数がアイドリング回転数になるまで減圧されエンジ
ンブレーキ効果が大となる。又、機関回転数がアイドリ
ング回転数になるまで電磁弁が開いているため、アイド
リング回転数に落ちるまでの時間が短かくなり従来の不
具合を解消する。(Operation) The above technical means operates as follows. That is, during deceleration operation, if the accelerator lever is at the idling position, the solenoid valve opens and the compressor reduces the pressure of the working gas in the working space until the engine speed reaches the idling speed, increasing the engine braking effect. Furthermore, since the solenoid valve remains open until the engine speed reaches the idling speed, the time it takes for the engine speed to drop to the idling speed is shortened, eliminating the conventional problem.

（実施例） 以下、第１図及び第２図に本発明の一実施例を示すが、
第３図に示した従来例と同一部品ないし同一部材には同
一符号を記し、その説明を省略する。(Example) An example of the present invention is shown in FIGS. 1 and 2 below.
The same parts or members as those in the conventional example shown in FIG. 3 are denoted by the same reference numerals, and their explanations will be omitted.

減圧弁５と並列回路となる様に、ライン２９およびライ
ン３０を介して夫々最高サイクル圧ライン４およびライ
ン１５に接続された電磁弁２８が配設されており、また
、操作レバー１１の支点１４と反対方向の端にアイドリ
ング状態を検知するアイドル検出スイッチ１９が配設さ
れている。アイドル検出スイッチ１９はアイドリング時
操作レバーＩＩに接するロッドによって端子２０と接触
し且つスプリングの附勢力を受ける接触子２１を有す。A solenoid valve 28 is connected to the highest cycle pressure line 4 and line 15 via lines 29 and 30, respectively, so as to form a parallel circuit with the pressure reducing valve 5. An idle detection switch 19 for detecting an idling state is disposed at the opposite end. The idle detection switch 19 has a contactor 21 that is in contact with a terminal 20 by a rod that contacts the operating lever II during idling and receives the biasing force of a spring.

端子２０の一方は電源子Ｂに接続され端子２０の他方は
電子制御装置２２に接続される。該電子制御装置２２は
第２図に示す如く、機関の出力軸からの機関回転数の信
号（パルス）を受け、該信号をＦＶ変換器２３によりア
ナログ出力に変換させる。このアナログ出力は比較器２
４によりアイドル回転数設定器２５からの出力と比較し
、機関の実際の回転数が設定アイドリング回転数より高
い場合に出力され論理積回路２６に入力される。該論理
積回路２６にはアイドル検出スイッチ１９の信号も入力
されており、アイドル検出スイッチ１９がＯＮ且つ、機
関回転数が設定アイドリング回転数より高い場合に電磁
弁駆動回路２７を作動させ、電磁弁２８を開とされ作動
空間１の圧を減圧し、機関出力を減少させる。One of the terminals 20 is connected to the power source B, and the other terminal 20 is connected to the electronic control device 22. As shown in FIG. 2, the electronic control unit 22 receives an engine rotational speed signal (pulse) from the output shaft of the engine, and converts the signal into an analog output using an FV converter 23. This analog output is comparator 2
4, it is compared with the output from the idle rotation speed setter 25, and if the actual engine rotation speed is higher than the set idling rotation speed, it is outputted and input to the AND circuit 26. A signal from the idle detection switch 19 is also input to the AND circuit 26, and when the idle detection switch 19 is ON and the engine speed is higher than the set idling speed, the solenoid valve drive circuit 27 is activated, and the solenoid valve is activated. 28 is opened to reduce the pressure in the working space 1 and reduce the engine output.

〔発明の効果〕〔Effect of the invention〕

従来技術の不具合を解消するためにフィードバックピス
トンシリンダ１０ヘガス圧を導いている導管に絞りを設
けてフィードバックピストンシリンダ１０内のガス圧変
化を遅らせて減圧弁５の開度を太きして作動ガスの減圧
速度を速くすることも考えられる。しかし、このものは
作動ガスを減圧し過ぎてアイドリング運転に必要なガス
圧以下まで減圧してしまいエンストするという問題点が
あるが、本発明は減圧弁５と並列回路に設けられた電磁
弁２７が機関回転数とアイドル検出スイッチ１９の条件
が満たされた時だけ作動するため、電磁弁が開いて減圧
して機関回転数がアイドリング回転数より低くなると電
磁弁は閉じ、アイドリング運転に必要なガス圧が確保さ
れるので、エンストを生ずるなどの他の問題を何ら生じ
ない。又、アイドリング状態で運転中に冷却水温の影響
ありいは機関負荷変動の影響で機関回転数がアイドリン
グ回転数より高（なった場合にも電磁弁が開き機関回転
数をアイドリング回転数に保つことが出来る。In order to solve the problems of the prior art, a restriction is provided in the conduit that leads the gas pressure to the feedback piston cylinder 10 to delay the change in gas pressure in the feedback piston cylinder 10 and widen the opening of the pressure reducing valve 5 to reduce the amount of working gas. It is also possible to increase the depressurization speed. However, this method has the problem that the pressure of the working gas is reduced too much and the pressure is reduced below the gas pressure required for idling operation, causing the engine to stall. is activated only when the engine speed and idle detection switch 19 conditions are met, so when the solenoid valve opens and the pressure is reduced and the engine speed becomes lower than the idling speed, the solenoid valve closes and the gas necessary for idling operation is released. Since the pressure is ensured, other problems such as engine stalling do not occur. In addition, even if the engine speed becomes higher than the idling speed due to the influence of cooling water temperature or engine load fluctuation during idling operation, the solenoid valve opens to maintain the engine speed at the idling speed. I can do it.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明に係るスターリング機関の作動ガス圧力
制御装置の一実施例図、第２図は第１図示装置に使用さ
れる制御回路のブロック図、および第３図は従来のスタ
ーリング機関の作動ガス圧力制御装置の説明図である。 １・・・作動空間、２・・・逆止弁、３・・・圧縮材、
４・・・最高サイクル圧ライン、５・・・減圧弁、６・
・・逆止弁、７・・・最低サイクル圧ライン、８・・・
増圧弁、１１・・・操作レバー、２８・・・電磁弁FIG. 1 is a diagram of an embodiment of a working gas pressure control device for a Stirling engine according to the present invention, FIG. 2 is a block diagram of a control circuit used in the device shown in FIG. 1, and FIG. 3 is a diagram of a conventional Stirling engine. FIG. 2 is an explanatory diagram of a working gas pressure control device. 1... Working space, 2... Check valve, 3... Compressed material,
4... Maximum cycle pressure line, 5... Pressure reducing valve, 6...
...Check valve, 7...Minimum cycle pressure line, 8...
Pressure increase valve, 11... operation lever, 28... solenoid valve

Claims (1)

【特許請求の範囲】[Claims] 作動空間に一方向弁を介して接続される最低サイクル圧
ラインに設けた増圧弁、前記作動空間に一方向弁を介し
て接続される最高サイクル圧ラインに設けた減圧弁、該
減圧弁と並列に最高サイクル圧ラインに設けた電磁弁、
前記増減圧弁の開閉を制御する操作レバー、前記両サイ
クル圧ラインに一方向弁を介して接続された圧縮機、お
よび前記操作レバーがアイドリング位置にあり、且つ機
関回転数がアイドリング回転数より高くなつた時前記電
磁弁を開とさせる制御回路を有するスターリング機関の
作動ガス圧力制御装置。A pressure increasing valve provided in the lowest cycle pressure line connected to the working space via a one-way valve, a pressure reducing valve provided in the highest cycle pressure line connected to the working space via the one-way valve, and parallel to the pressure reducing valve. A solenoid valve installed in the highest cycle pressure line,
an operating lever that controls opening and closing of the pressure increase/decrease valve, a compressor connected to the both cycle pressure lines via a one-way valve, and the operating lever are in an idling position, and the engine speed is higher than the idling speed. A working gas pressure control device for a Stirling engine, comprising a control circuit that opens the solenoid valve when the electromagnetic valve is opened.
JP20121585A 1985-09-11 1985-09-11 Working medium pressure controller for stiring engine Granted JPS6260970A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20121585A JPS6260970A (en) 1985-09-11 1985-09-11 Working medium pressure controller for stiring engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20121585A JPS6260970A (en) 1985-09-11 1985-09-11 Working medium pressure controller for stiring engine

Publications (2)

Publication Number Publication Date
JPS6260970A true JPS6260970A (en) 1987-03-17
JPH0330716B2 JPH0330716B2 (en) 1991-05-01

Family

ID=16437251

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20121585A Granted JPS6260970A (en) 1985-09-11 1985-09-11 Working medium pressure controller for stiring engine

Country Status (1)

Country Link
JP (1) JPS6260970A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05278137A (en) * 1992-04-06 1993-10-26 Toppan Printing Co Ltd Production of embossed decorative sheet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05278137A (en) * 1992-04-06 1993-10-26 Toppan Printing Co Ltd Production of embossed decorative sheet

Also Published As

Publication number Publication date
JPH0330716B2 (en) 1991-05-01

Similar Documents

Publication Publication Date Title
US6073596A (en) Method for controlling electromagnetic actuators for operating cylinder valves in piston-type internal combustion engines
WO1997041346A1 (en) Device and method in combustion engines
US5048480A (en) Variable timing process and mechanism for a compression release engine retarder
JPS5911730B2 (en) Internal combustion engine with shuntable exhaust turbine supercharger
US4365600A (en) Diesel throttle valve control system
US4154060A (en) Method for starting a pressure-charged internal-combustion engine and apparatus for implementing the method
US4354465A (en) Diesel throttle valve control system
JPS6260970A (en) Working medium pressure controller for stiring engine
AU662899B2 (en) Method for coldstarting a piston engine and means for carrying out the method
US4557111A (en) Control system for the engagement and disengagement of exhaust gas turbochargers
JPH04503389A (en) Air supply system for internal combustion engines
US4363301A (en) Braking device for a four-cycle engine of a vehicle
US4483142A (en) Output control system for Stirling engines
JPH02181012A (en) 4-cycle internal combustion engine for driving automobile
EP0728920B1 (en) Method and arrangement for control of an exhaust brake in a combustion engine
CN216077254U (en) Mixed oil duct type engine braking device
JPH0214528B2 (en)
KR0149361B1 (en) Intake system for an automobile
JP2532206B2 (en) Fuel injection amount control device for diesel engine with turbocharger
GB2081378A (en) Diesel engine throttle valve control system
CN118391147A (en) In-cylinder brake control method and system suitable for variable valve diesel engine
SU1054558A1 (en) Combined-type power plant
JP3295676B2 (en) Exhaust brake device
JPS6210446A (en) Control device for idle speed in internal-combustion engine
GB2079980A (en) Diesel Throttle Valve Control System