JPS59201901A - Lubricating oil feeder of rotary piston engine - Google Patents

Lubricating oil feeder of rotary piston engine

Info

Publication number
JPS59201901A
JPS59201901A JP58075480A JP7548083A JPS59201901A JP S59201901 A JPS59201901 A JP S59201901A JP 58075480 A JP58075480 A JP 58075480A JP 7548083 A JP7548083 A JP 7548083A JP S59201901 A JPS59201901 A JP S59201901A
Authority
JP
Japan
Prior art keywords
lubricating oil
working chamber
piston engine
oil
rotary piston
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
JP58075480A
Other languages
Japanese (ja)
Other versions
JPS6211162B2 (en
Inventor
Tsutomu Yamamoto
勤 山本
Kazunori Nakatsu
中津　和徳
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.)
Mazda Motor Corp
Original Assignee
Mazda Motor Corp
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 Mazda Motor Corp filed Critical Mazda Motor Corp
Priority to JP58075480A priority Critical patent/JPS59201901A/en
Publication of JPS59201901A publication Critical patent/JPS59201901A/en
Publication of JPS6211162B2 publication Critical patent/JPS6211162B2/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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B53/00—Internal-combustion aspects of rotary-piston or oscillating-piston engines
    • F02B53/10—Fuel supply; Introducing fuel to combustion space
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B53/00—Internal-combustion aspects of rotary-piston or oscillating-piston engines
    • F02B2053/005—Wankel engines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は減速時に燃料の供給を制限するようにしたロー
クリピストンエンジンにおいて、潤滑油の消費量を改善
し５　しかも排気通路に設けられた触媒やセンサ類の汚
損を防止できる潤滑油供給装置に関する。Detailed Description of the Invention (Field of Industrial Application) The present invention improves the consumption of lubricating oil in a low-return piston engine that limits the supply of fuel during deceleration. This invention relates to a lubricating oil supply device that can prevent catalysts and sensors from becoming contaminated.

（従来技術） ロークリピストンエンジンはケーシンク内ヲ遊星回転運
動するロータとケーシング内壁面との潤滑を図るため、
エンジン本体を循環する主潤滑系路とは別途に作動室内
にも潤滑油を供給する糸路を有している。(Prior art) In order to lubricate the rotor, which rotates planetarily within the casing, and the inner wall surface of the casing,
Separately from the main lubrication system that circulates through the engine body, there is a line that supplies lubricating oil to the working chamber.

この潤滑油は、一般にケーシング内の潤滑に必要な油量
に作動室内で燃焼する油量を朋友た量が供給されている
。This lubricating oil is generally supplied in an amount equal to the amount of oil required for lubrication within the casing and the amount of oil burned within the working chamber.

ところが、減速時に燃料を制限するように構成されてな
るロークリピストンエンジンにおいては。However, in a low-return piston engine that is configured to limit fuel during deceleration.

減速時に燃料が制限されると２作動室内で燃焼する潤滑
油量が減少するので１作動室内に余分な量の潤滑油が供
給されていることになる。When fuel is restricted during deceleration, the amount of lubricant burned in the two working chambers decreases, so an extra amount of lubricating oil is supplied to the first working chamber.

そのような余分な１ａＩＰｋ油は、排気通路を経て排気
される時に、特に潤滑油中に含まれるリン成分が触媒と
反応して触媒上にガラス状の膜を作り。When such excess 1aIPk oil is exhausted through the exhaust passage, the phosphorus component contained in the lubricating oil reacts with the catalyst to form a glass-like film on the catalyst.

触媒作用を阻害し、また排気通路６８設けられるセンサ
類を汚損することがある。This may impede the catalytic action and contaminate the sensors provided in the exhaust passage 68.

従来、潤滑系路の途中に吸着材を配置せしめてリン成分
を除去し一９触媒やセンサ類の汚損防止を図った除去装
置がある（例えば特開昭５６−６０１８）。Conventionally, there is a removal device in which an adsorbent is disposed in the middle of a lubrication system path to remove phosphorus components and prevent contamination of catalysts and sensors (for example, Japanese Patent Laid-Open No. 56-6018).

しかるに、この種の装置を減速時に燃料の供給が制限さ
れるロータリピストンエンジンに適用すると、触媒やセ
ンサ類の汚損は防止できるが、減速時には上述した様に
余分な潤滑油が供給されるので、潤滑油の消費量が改善
されないという問題がある。However, if this type of device is applied to a rotary piston engine where the fuel supply is restricted during deceleration, it can prevent the catalyst and sensors from becoming contaminated, but as mentioned above, excess lubricating oil will be supplied during deceleration. There is a problem that the consumption of lubricating oil is not improved.

（発明の目的） 本発明はかかる点に鑑みてなされたもので２減速時に燃
料の供給が制限されるロータリビス１−ンエンジンにお
いて、減速時には７ｆｌＩ涜油量を減少せしめて作動室
内に余分な潤滑油を供給せず潤滑油の消費量改善を図り
、しかも排気通路に設けられる触媒やセンづ・類の汚損
の防止を図ったロータリピストンエンジンのａ滑油供給
装置を提供することを目的とする。(Object of the Invention) The present invention has been made in view of the above points, and in a rotary rev engine engine where fuel supply is limited during deceleration, it reduces the amount of 7flI oil during deceleration and eliminates excess oil in the working chamber. The purpose of the present invention is to provide a lubricating oil supply device for a rotary piston engine, which improves lubricating oil consumption without supplying lubricating oil, and prevents contamination of catalysts and sensors installed in exhaust passages. do.

（発明の構成） 本発明は減速時に作動室への燃料の供給を制限するよう
にしたロータリピストンエンジンにおいて、上記作動室
への燃料の供給が制限されたときに該作動室へ供給する
潤滑油量を減少せしめる潤滑油減量装置を設けたローク
リピストンエンジンの潤滑油供給装置である。(Structure of the Invention) The present invention provides a rotary piston engine in which the supply of fuel to the working chamber is restricted during deceleration, in which lubricating oil is supplied to the working chamber when the supply of fuel to the working chamber is restricted. This is a lubricating oil supply device for a rotary piston engine equipped with a lubricating oil reducing device that reduces the amount of lubricating oil.

（実施例） 以下２本発明の構成を実施例について図面を、参照して
説明する。(Example) The configuration of the present invention will be described below with reference to the drawings for two examples.

第１図において、１はロータリピストンエンジンを示し
、減速時に燃料の供給が制限されるような手段ををして
いる。一方作動室２内には、吸気通路３に設けられたイ
ンジェクタ４より燃料が噴射されるとともに潤滑油５も
供給される。In FIG. 1, reference numeral 1 indicates a rotary piston engine, which is provided with means to restrict fuel supply during deceleration. Meanwhile, fuel is injected into the working chamber 2 from an injector 4 provided in an intake passage 3, and lubricating oil 5 is also supplied.

潤滑油５はオイルポンプ６を介してオイルパンツ内から
引き上げられて、メタリングオイルポンプ８によってエ
ンジンの回転と負荷に応した必要な潤滑油量が２つの流
路９，１０に分岐される。Lubricating oil 5 is pulled up from inside the oil pant via oil pump 6, and a necessary amount of lubricating oil corresponding to engine rotation and load is branched into two flow paths 9 and 10 by metering oil pump 8.

一方の流路９はソレノイドバルブ１１を経て上記吸気通
路３の出口部側に設けられた第１給油ノズル１２に接続
され、潤滑油は該第１給油ノズル１２から噴射されて作
動室２内に供給される。また、他方の流路１０もソレノ
イドバルブ１３を経てロータハウジング１４に挿通して
設けられる第２給油ノズル１５に接続され、潤滑油は該
第２給油ノズル１５を介して作動室２内に噴射される。One flow path 9 is connected via a solenoid valve 11 to a first oil supply nozzle 12 provided on the outlet side of the intake passage 3, and lubricating oil is injected from the first oil supply nozzle 12 into the working chamber 2. Supplied. Further, the other flow path 10 is also connected to a second oil supply nozzle 15 provided through the rotor housing 14 through a solenoid valve 13, and lubricating oil is injected into the working chamber 2 through the second oil supply nozzle 15. Ru.

上記第１給油ノズル１２から噴射される潤滑油は２主に
ロータハウジング１４の内面１８とロータ１６の外周に
沿って設けられるサイドシール１７の潤滑に寄与し、第
２給油ノズル１５から噴射される潤滑油は、主にアペッ
クスシール１９とロータハウジング１４の内面１８の潤
滑に寄与する。The lubricating oil injected from the first oil supply nozzle 12 mainly contributes to the lubrication of the inner surface 18 of the rotor housing 14 and the side seal 17 provided along the outer circumference of the rotor 16, and is injected from the second oil supply nozzle 15. The lubricating oil mainly contributes to lubrication of the apex seal 19 and the inner surface 18 of the rotor housing 14.

ところで、上記第２給油ノズル１５は作動室２内に開Ｉ
コされているので１作動室２内の圧力に影響されて潤滑
油が飛散することがあり、エンジン通常運転時に上記ア
ペックスシール１９が第２給油ノズル１５の真下にある
時に、当該アペックスシール１９とロータハウジング１
４で仕切られる左右の室の圧力が略等しくなる位置に、
上記第２給油ノズル１５を設けることが好ましい。By the way, the second refueling nozzle 15 is opened into the working chamber 2.
Since the lubricating oil is affected by the pressure inside the first working chamber 2, it may scatter. Rotor housing 1
At the position where the pressures of the left and right chambers partitioned by 4 are approximately equal,
Preferably, the second refueling nozzle 15 is provided.

なお２図中２０は点火プラグ、２１は吸気ボート、２２
は排気通路、２３は偏心軸を示す。In Figure 2, 20 is the spark plug, 21 is the intake boat, and 22
indicates an exhaust passage, and 23 indicates an eccentric shaft.

次に、減速時に上記作動室２への燃料の供給が制限され
た場合の−ａ滑油減量装置について説明する。Next, a description will be given of the -a oil reducing device when the supply of fuel to the working chamber 2 is restricted during deceleration.

第２図において、制御回路２４には、エアフローセンサ
２５（第１図参照）からポテンショメーク２６を介して
検出された吸気流量に対応する信号Ｓ１と、エンジン回
転数上ンサ２７からの信号Ｓ２と、エンジン冷却水温セ
ンサ２８からの信号Ｓ３およびスロットルバルブ開度ス
イッチ２９を介して検出されたスロットルバルブ３０　
（第１図参照）の開度に対応する信号Ｓ４の４一つの信
号が人力される。上記信号Ｓ１と８２とから、基本噴射
量決定回路３１を介して最適な燃料噴射量が演算され、
その演算量に相当するパルス波に変換されて出力される
。その出力パルス波はインジェクタ駆動回路３２を介し
て上記インジェクタ４の燃料噴出量を制御することにな
る。In FIG. 2, the control circuit 24 receives a signal S1 corresponding to the intake flow rate detected from the air flow sensor 25 (see FIG. 1) via the potentiometer 26, and a signal S2 from the engine speed increase sensor 27. , the throttle valve 30 detected via the signal S3 from the engine coolant temperature sensor 28 and the throttle valve opening switch 29.
Four signals of signal S4 corresponding to the opening degree (see FIG. 1) are manually input. The optimum fuel injection amount is calculated from the signals S1 and 82 via the basic injection amount determining circuit 31,
It is converted into a pulse wave corresponding to the amount of calculation and output. The output pulse wave controls the fuel injection amount of the injector 4 via the injector drive circuit 32.

一方、上記信号Ｓ２，３３．Ｓ４により、減速時を検出
し、潤滑油を減少せしめる領域（第３図で斜線で示す）
を決定して、ソレノイドバルブ１１゜１３を制御する。On the other hand, the signals S2, 33. Area where S4 detects deceleration and reduces lubricating oil (shown with diagonal lines in Figure 3)
is determined and the solenoid valves 11 and 13 are controlled.

すなわち、信号Ｓ２が基準電圧■１を越えてエンジン回
転数が設定回転数Ｎｌ（第３図参照）以上になると、比
較器３３の出力が“１”レベルとなり、また信号Ｓ３が
基準電圧■２を越えてエンジン冷却水温が設定冷却水温
Ｔｌ（第３図参照）以上になると、比較器３４の出力が
“１″レベルとなるので、信号Ｓ４によりスロソトハル
ブ３０の全閉が確認されると、ＡＮＤゲート３５の出力
が“１”レベルとなる。ＡＮＤゲート３５の出力が“１
”レベルとなると、ソレノイドバルブ駆動回路３６が作
動してソレノイドバルブＩＬ　　１３の励磁コイルＩｌ
ａ、１３ａの各々を励磁して制御弁１１ｂ、１３ｂを作
動せしめる（第１図参照）該制御弁１１ｂ、１３ｂが作
動すると、前記流路９，１０が各々せばめられることに
なり１作動室２内に供給される潤滑油量が減少すること
になる。That is, when the signal S2 exceeds the reference voltage ■1 and the engine speed exceeds the set rotation speed Nl (see Figure 3), the output of the comparator 33 becomes "1" level, and the signal S3 exceeds the reference voltage ■2. When the engine cooling water temperature exceeds the set cooling water temperature Tl (see Fig. 3), the output of the comparator 34 becomes "1" level. The output of the gate 35 becomes "1" level. The output of AND gate 35 is “1”
” level, the solenoid valve drive circuit 36 operates and the excitation coil Il of the solenoid valve IL 13 is activated.
a, 13a are excited to operate the control valves 11b, 13b (see Fig. 1). When the control valves 11b, 13b are operated, the flow paths 9, 10 are narrowed, so that one working chamber 2 This results in a decrease in the amount of lubricating oil supplied to the inside.

なお、上記設定回転数Ｎ１は・エンジンの回転数がアイ
ドル回転数よりも高い値に設定され、また設定冷却水温
Ｔ１でエンジンが十分暖気されている値に設定されてい
て、ともにエンジン停止等が起こらないような設定値が
選ばれる。The above set rotation speed N1 is set so that the engine rotation speed is higher than the idle rotation speed, and the engine is sufficiently warmed up at the set cooling water temperature T1, and both of these are set to a value that ensures that the engine stops, etc. Setting values are chosen that will prevent this from occurring.

以上述べた実施例では、制御面、路２４の出力でソレノ
イドバルブ１１．１３を制御するが、その他上記メタリ
ングオイルポンプ８の吐出量を制御するように構成する
こともできる。In the embodiment described above, the solenoid valves 11, 13 are controlled by the output of the control surface and the passage 24, but the discharge amount of the metering oil pump 8 may also be controlled.

（発明の効果） 本発明は゛減速時に燃料の供給が制限されるロークリピ
ストンエンジンにおいて、燃料が制限されると作動室内
に供給される潤滑油量を減少せしめる潤滑油減量装置を
設けているので、減速時にもケーシン、グ内の潤滑に必
要な潤滑油量を供給でき余分の潤滑油が供給されないの
で、潤滑油の消費量の改善ができ、その結果、排気され
る潤滑油成分、即ちリン成分も減少するので、排気通路
に設けられている触媒やセンサ類の汚損の防止が図れる
効果がある。(Effects of the Invention) The present invention is provided with a lubricating oil reducing device that reduces the amount of lubricating oil supplied into the working chamber when fuel is restricted in a low-return piston engine where fuel supply is restricted during deceleration. Even during deceleration, the amount of lubricating oil required for lubrication inside the casing and the casing can be supplied, and excess lubricating oil is not supplied, so the amount of lubricating oil consumed can be improved, and as a result, the lubricating oil components that are exhausted, i.e., phosphorus, are reduced. Since the components are also reduced, there is an effect of preventing contamination of the catalyst and sensors provided in the exhaust passage.

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

図面は本発明の実施様態を例示するもので、第１図はロ
ークリピストンエンジンの潤滑油供給装置を示すシステ
ム図、第２図は制御回路の動作を説明するブロック図、
第３図は潤滑油減少領域を示す図である。 １・・・ロータリピストンエンジン、２・・・作動室５
・・・ｉ’１ＱＩｉ油、１１・・・ソレノイドバルブ１
２・・・第１給油ノズル １３・・・ソレノイドバルブ １５・・・第２給油ノズル ２４・・・制御回路The drawings illustrate embodiments of the present invention, and FIG. 1 is a system diagram showing a lubricating oil supply device for a rotary piston engine, and FIG. 2 is a block diagram illustrating the operation of a control circuit.
FIG. 3 is a diagram showing a lubricant reduction area. 1... Rotary piston engine, 2... Working chamber 5
...i'1QIi oil, 11...Solenoid valve 1
2...First oil supply nozzle 13...Solenoid valve 15...Second oil supply nozzle 24...Control circuit

Claims (1)

【特許請求の範囲】[Claims] １）−作動室に／ｌ１ＩＩ滑油を供給する一方、減速時
に上記作動室への燃料の併結を制限するようにしたロー
クリピストンエンジンにおいて、上記作動室への燃料の
供給が制限されなときに、該作動室へ供給する上記潤滑
油量を減少させる潤滑油減量装置を設けたことを特徴と
するロークリピストンエンジンの潤滑油供給装置。1) - In a low-repetition piston engine that supplies l1II lubricant oil to the working chamber and restricts the merging of fuel to the working chamber during deceleration, when the supply of fuel to the working chamber is not restricted. A lubricating oil supply device for a rotary piston engine, characterized in that a lubricating oil reducing device for reducing the amount of lubricating oil supplied to the working chamber is provided.
JP58075480A 1983-04-28 1983-04-28 Lubricating oil feeder of rotary piston engine Granted JPS59201901A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58075480A JPS59201901A (en) 1983-04-28 1983-04-28 Lubricating oil feeder of rotary piston engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58075480A JPS59201901A (en) 1983-04-28 1983-04-28 Lubricating oil feeder of rotary piston engine

Publications (2)

Publication Number Publication Date
JPS59201901A true JPS59201901A (en) 1984-11-15
JPS6211162B2 JPS6211162B2 (en) 1987-03-11

Family

ID=13577493

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58075480A Granted JPS59201901A (en) 1983-04-28 1983-04-28 Lubricating oil feeder of rotary piston engine

Country Status (1)

Country Link
JP (1) JPS59201901A (en)

Also Published As

Publication number Publication date
JPS6211162B2 (en) 1987-03-11

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