JPH09222020A - Method for making expanding stroke of in-cylinder injection engine longer than really compressing stroke in terms of stroke - Google Patents
Method for making expanding stroke of in-cylinder injection engine longer than really compressing stroke in terms of strokeInfo
- Publication number
- JPH09222020A JPH09222020A JP8097261A JP9726196A JPH09222020A JP H09222020 A JPH09222020 A JP H09222020A JP 8097261 A JP8097261 A JP 8097261A JP 9726196 A JP9726196 A JP 9726196A JP H09222020 A JPH09222020 A JP H09222020A
- Authority
- JP
- Japan
- Prior art keywords
- dead center
- stroke
- compression
- expansion
- valve
- 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.)
- Pending
Links
Classifications
-
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、筒内噴射ガソリンエン
ジンの、本当に圧縮する工程よりも膨張する工程の方
を、ストロークで言うならば長くとる方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for making a stroke of a cylinder injection gasoline engine longer than a true compression step in terms of stroke.
【０００２】[0002]
【従来の技術】従来の、筒内噴射ガソリンエンジンにお
いては、理論として、 圧縮比＝膨張比 であった。2. Description of the Related Art In a conventional direct injection gasoline engine, theoretically, compression ratio = expansion ratio.
【０００３】[0003]
【発明が解決しようとする課題】従来の、筒内噴射ガソ
リンエンジンにあっては、理論として、 圧縮比＝膨張比 の為、膨張しきる前に排気弁が開き、爆発に因って出た
エネルギー（パワー、トルク）を、多く排出してしま
う、と言う問題点があった。In the conventional cylinder-injection gasoline engine, the theory is that the compression ratio = expansion ratio, so the exhaust valve opens before the expansion is complete, and the energy generated due to the explosion. There is a problem that a large amount of (power, torque) is discharged.
【０００４】本発明は、筒内噴射ガソリンエンジンの、
本当に圧縮する工程よりも膨張する工程の方を、ストロ
ークで言うならば長くとる方法を得ることを目的として
おり、さらに、該方法を用いた時の、膨張工程の時の対
策を得る事を目的としている。[0004] The present invention relates to a direct injection gasoline engine.
The purpose is to obtain a method in which the process of expanding rather than the process of really compressing is taken longer in terms of stroke, and further, to obtain a measure during the expanding process when using this method. I am trying.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成する為
に、本発明の、筒内噴射ガソリンエンジンの、本当に圧
縮する工程よりも膨張する工程の方を、ストロークで言
うならば長くとる方法においては、圧縮工程の時、排気
弁を、下死点で開き、上死点の少し手前の間で閉じる。In order to achieve the above object, in the method of taking the stroke of the cylinder injection gasoline engine of the present invention, the step of expanding the cylinder rather than the step of really compressing is longer. Opens the exhaust valve at the bottom dead center and closes just before the top dead center during the compression process.
【０００６】また、圧縮工程の時、排気弁を開け過ぎた
時の対策として、膨張工程の時、膨張し過ぎて回転の抵
抗になる前に、吸気弁を開き、下死点で閉じる。Further, as a countermeasure against excessive opening of the exhaust valve during the compression process, the intake valve is opened and closed at the bottom dead center during the expansion process before it expands too much and becomes resistance to rotation.
【０００７】[0007]
【作用】上記のように構成された、筒内噴射ガソリンエ
ンジンの、本当に圧縮する工程よりも膨張する工程の方
を、ストロークで言うならば長くとる方法においては、
圧縮工程の時、排気弁を、下死点で開き、上死点の少し
手前の間で閉じる事に因り、 圧縮比＜膨張比 の工程が行える。According to the above-described method, in the in-cylinder injection gasoline engine, the expansion step is longer than the actual compression step in terms of stroke.
During the compression process, the process of compression ratio <expansion ratio can be performed because the exhaust valve is opened at bottom dead center and closed just before top dead center.
【０００８】さらに、圧縮工程の時、排気弁を開け過ぎ
た時の対策として、膨張工程の時、膨張し過ぎて回転の
抵抗になる前に、吸気弁を開き、下死点で閉じる事に因
り、回転する時の抵抗も少なくなり、さらに、 圧縮比＜膨張比 の比率の割り合いが高くなり、また、排気ガスを空気に
因って、薄める事ができる。Further, as a measure against excessive opening of the exhaust valve during the compression process, the intake valve is opened and closed at the bottom dead center during the expansion process before it expands excessively and becomes resistance to rotation. Therefore, the resistance during rotation is reduced, the ratio of compression ratio <expansion ratio is high, and the exhaust gas can be thinned due to air.
【０００９】[0009]
【実施例】実施例について図面を参照して説明すると、
図１から図４においては、筒内噴射ガソリンエンジン
の、本当に圧縮する工程よりも膨張する工程の方を、ス
トロークで言うならば長くとる方法の、圧縮工程と膨張
工程の時の、弁の動きを示した縦断面図であり、図１か
ら図４は、 図１ 圧縮工程−１ 吸気弁は閉じ、排気弁は、下死点で開き、上死点の少し
手前の間で閉じる。（図１に示される排気弁は、ピスト
ンが２分の１程、上昇した時点で閉じると仮定した図で
あり、閉じる直前の図でもある。） 図２ 圧縮工程−２（ガソリンの噴射・点火） 吸気弁と排気弁は閉じている。 図３ 膨張工程−１ 吸気弁は、膨張し過ぎて回転の抵抗になる前に開き、排
気弁は閉じている。（図３に示される吸気弁は、ピスト
ンが４分の３程、下降した時点で開くと仮定した図であ
り、開いた直後の図でもある。） 図４ 膨張工程−２ 吸気弁は、下死点で閉じ、排気弁も閉じている。であ
る。（図１から図４に示される弁のバルブ・タイミング
は、エンジンの目的、回転数、回転数の上昇時、下降
時、あるいは、圧縮比などに因って違うので、含まれて
いない。）Embodiments will be described with reference to the drawings.
1 to 4, the movement of the valve in the compression process and the expansion process of the cylinder injection gasoline engine in which the expansion process is longer than the compression process in terms of stroke. 1 to FIG. 4. FIG. 1 to FIG. 4 show the compression process of FIG. 1. The intake valve is closed, the exhaust valve is opened at the bottom dead center, and is closed just before the top dead center. (The exhaust valve shown in FIG. 1 is a diagram assuming that the piston is closed when the piston moves up by about half, and is also a diagram immediately before the closing.) FIG. 2 Compression step-2 (gasoline injection / ignition) ) The intake valve and exhaust valve are closed. Fig. 3 Expansion step-1 The intake valve opens before it expands too much to resist rotation, and the exhaust valve closes. (The intake valve shown in FIG. 3 is a view assuming that the piston is opened when the piston is lowered by about three quarters, and is also a view immediately after it is opened.) FIG. It closes at the dead point, and the exhaust valve is also closed. It is. (The valve timings of the valves shown in FIGS. 1 to 4 are not included because they differ depending on the purpose of the engine, the number of revolutions, when the number of revolutions increases, when the revolutions decrease, or due to the compression ratio, etc.)
【００１０】[0010]
【発明の効果】本発明は、以上説明したように構成され
ているので、以下に記載されるような効果を奏する。Since the present invention is configured as described above, it has the following effects.
【００１１】筒内噴射ガソリンエンジンの、本当に圧縮
する工程よりも膨張する工程の方を、ストロークで言う
ならば長くとる方法において、圧縮工程の時、排気弁
を、下死点で開き、上死点の少し手前の間で閉じる事に
因り、 圧縮比＜膨張比 の工程が行え、従来の、筒内噴射ガソリンエンジンより
も、同じ量の燃料を消費するにあたって、爆発に因って
出たエネルギー（パワー、トルク）を、より多く、ピス
トン、そして、クランク・シャフトへと伝える事ができ
る。In a method of taking a stroke of a cylinder injection gasoline engine, which expands more than a compression actually, in terms of stroke, the exhaust valve is opened at the bottom dead center during the compression step and the top dead center is reached. Due to the fact that it closes just before the point, the process of compression ratio <expansion ratio can be performed, and the energy generated by the explosion when consuming the same amount of fuel as the conventional direct injection gasoline engine More (power, torque) can be transmitted to the piston and crank shaft.
【００１２】また、圧縮工程の時、排気弁を開け過ぎた
時の対策として、膨張工程の時、膨張し過ぎて回転の抵
抗になる前に、吸気弁を開き、下死点で閉じる事に因
り、回転の抵抗も少なくなり、さらに、 圧縮比＜膨張比 の比率の割り合いが高くなり、また、排気ガスを空気に
因って、薄める事ができるので、排気の時に排気ガスが
シリンダーの中に残る割り合いが少なくなり、それに因
って、次の爆発で、完全燃焼が近づく。As a countermeasure against excessive opening of the exhaust valve during the compression process, the intake valve is opened and closed at the bottom dead center during the expansion process before it expands too much and becomes a resistance to rotation. As a result, the resistance to rotation also decreases, and the ratio of compression ratio <expansion ratio increases, and the exhaust gas can be diluted due to the air. The proportion remaining inside is reduced, and as a result, complete combustion approaches in the next explosion.
【図１】筒内噴射ガソリンエンジンの工程の実施例を示
す、縦断面図である。（圧縮工程−１）FIG. 1 is a vertical sectional view showing an embodiment of a process of a cylinder injection gasoline engine. (Compression process-1)
【図２】筒内噴射ガソリンエンジンの工程の実施例を示
す、縦断面図である。（圧縮工程−２）FIG. 2 is a vertical cross-sectional view showing an example of a process of a cylinder injection gasoline engine. (Compression step-2)
【図３】筒内噴射ガソリンエンジンの工程の実施例を示
す、縦断面図である。（膨張工程−１）FIG. 3 is a vertical sectional view showing an embodiment of a process of a cylinder injection gasoline engine. (Expansion step-1)
【図４】筒内噴射ガソリンエンジンの工程の実施例を示
す、縦断面図である。（膨張工程−２）FIG. 4 is a vertical cross-sectional view showing an example of a process of a cylinder injection gasoline engine. (Expansion step-2)
１ 吸気弁（吸気工程の時、上死点で開き、下死点で閉
じる弁と、膨張工程の時、膨張し過ぎて回転の抵抗にな
る前に開き、下死点で閉じる弁、を兼ねた弁） ２ 排気弁（排気工程の時、下死点で開き、上死点で閉
じる弁と、圧縮工程の時、下死点で閉き、上死点の少し
手前の間で閉じる弁、を兼ねた弁） ３ プラグ ４ ガソリン噴射器 ５ ピストン1 Intake valve (also serves as a valve that opens at top dead center during the intake stroke and closes at bottom dead center, and a valve that opens before expanding too much and becomes resistance to rotation during the expansion stroke and closes at bottom dead center) 2) Exhaust valve (a valve that opens at bottom dead center and closes at top dead center during the exhaust stroke, and a valve that closes at bottom dead center and closes slightly before top dead center during the compression stroke, Valve that doubles as a valve 3 plug 4 gasoline injector 5 piston
─────────────────────────────────────────────────────
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【手続補正書】[Procedure amendment]
【提出日】平成８年４月１８日[Submission date] April 18, 1996
【手続補正２】[Procedure amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】全文[Correction target item name] Full text
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【書類名】 明細書[Document Name] Statement
【発明の名称】 筒内噴射ガソリンエンジンの、本当
に圧縮する工程よりも膨張する工程の方を、ストローク
で言うならば長くとる方法。Title of the Invention A method in which the expansion step of a direct injection gasoline engine is longer than the actual compression step in terms of stroke.
【特許請求の範囲】[Claims]
【発明の詳細な説明】Detailed Description of the Invention
【０００１】[0001]
【産業上の利用分野】本発明は、筒内噴射ガソリンエン
ジンの、本当に圧縮する工程よりも膨張する工程の方
を、ストロークで言うならば長くとる方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for making a stroke of a cylinder injection gasoline engine longer than a true compression step in terms of stroke.
【０００２】[0002]
【従来の技術】従来の、筒内噴射ガソリンエンジンにお
いては、理論として、 圧縮比＝膨張比 であった。2. Description of the Related Art In a conventional direct injection gasoline engine, theoretically, compression ratio = expansion ratio.
【０００３】[0003]
【発明が解決しようとする課題】従来の、筒内噴射ガソ
リンエンジンにあっては、理論として、 圧縮比＝膨張比 の為、膨張しきる前に排気弁が開き、爆発に因って出た
エネルギー（パワー、トルク）を、多く排出してしま
う、と言う問題点があった。In the conventional cylinder-injection gasoline engine, the theory is that the compression ratio = expansion ratio, so the exhaust valve opens before the expansion is complete, and the energy generated due to the explosion. There is a problem that a large amount of (power, torque) is discharged.
【０００４】本発明は、筒内噴射ガソリンエンジンの、
本当に圧縮する工程よりも膨張する工程の方を、ストロ
ークで言うならば長くとる方法を得ることを目的として
おり、さらに、該方法を用いた時の、膨張工程の時の対
策を得る事を目的としている。[0004] The present invention relates to a direct injection gasoline engine.
The purpose is to obtain a method in which the process of expanding rather than the process of really compressing is taken longer in terms of stroke, and further, to obtain a measure during the expanding process when using this method. I am trying.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成する為
に、本発明の、筒内噴射ガソリンエンジンの、本当に圧
縮する工程よりも膨張する工程の方を、ストロークで言
うならば長くとる方法においては、圧縮工程の時、排気
弁を、下死点で開き、上死点の少し手前の間で閉じる。In order to achieve the above object, in the method of taking the stroke of the cylinder injection gasoline engine of the present invention, the step of expanding the cylinder rather than the step of really compressing is longer. Opens the exhaust valve at the bottom dead center and closes just before the top dead center during the compression process.
【０００６】また、圧縮工程の時、排気弁を開け過ぎた
時の対策として、膨張工程の時、膨張し過ぎて回転の抵
抗になる前に、吸気弁を開き、下死点で閉じる。Further, as a countermeasure against excessive opening of the exhaust valve during the compression process, the intake valve is opened and closed at the bottom dead center during the expansion process before it expands too much and becomes resistance to rotation.
【０００７】[0007]
【作用】上記の様に構成された、筒内噴射ガソリンエン
ジンの、本当に圧縮する工程よりも膨張する工程の方
を、ストロークで言うならば長くとる方法においては、
圧縮工程の時、排気弁を、下死点で開き、上死点の少し
手前の間で閉じる事に因り、 圧縮比＜膨張比 の工程が行える。In the method of taking the stroke of the cylinder injection gasoline engine having the above-described structure, the step of expanding the cylinder as compared with the step of really compressing is longer than that of the stroke.
During the compression process, the process of compression ratio <expansion ratio can be performed because the exhaust valve is opened at bottom dead center and closed just before top dead center.
【０００８】さらに、圧縮工程の時、排気弁を開け過ぎ
た時の対策として、膨張工程の時、膨張し過ぎて回転の
抵抗になる前に、吸気弁を開き、下死点で閉じる事に因
り、回転する時の抵抗も少なくなり、さらに、 圧縮比＜膨張比 の比率の割り合いが高くなり、また、排気ガスを空気に
因って、薄める事ができる。Further, as a measure against excessive opening of the exhaust valve during the compression process, the intake valve is opened and closed at the bottom dead center during the expansion process before it expands excessively and becomes resistance to rotation. Therefore, the resistance during rotation is reduced, the ratio of compression ratio <expansion ratio is high, and the exhaust gas can be thinned due to air.
【０００９】[0009]
【実施例】実施例について図面を参照して説明すると、
図１から図４においては、筒内噴射ガソリンエンジン
の、本当に圧縮する工程よりも膨張する工程の方を、ス
トロークで言うならば長くとる方法の、圧縮工程と膨張
工程の時の、弁の動きを示した縦断面図であり、図１か
ら図４は、 図１ 圧縮工程−１ 吸気弁は閉じ、排気弁は、下死点で開き、上死点の少し
手前の間で閉じる。（図１に示される排気弁は、ピスト
ンが２分の１程、上昇した時点で閉じると仮定した図で
あり、閉じる直前の図でもある。） 図２ 圧縮工程−２（ガソリンの噴射・点火） 吸気弁と排気弁は閉じている。 図３ 膨張工程−１ 吸気弁は、膨張し過ぎて回転の抵抗になる前に開き、排
気弁は閉じている。（図３に示される吸気弁は、ピスト
ンが４分の３程、下降した時点で開くと仮定した図であ
り、開いた直後の図でもある。） 図４ 膨張工程−２ 吸気弁は、下死点で閉じ、排気弁も閉じている。であ
る。（図１から図４に示される弁のバルブ・タイミング
は、エンジンの目的、回転数、回転数の上昇時、下降
時、あるいは、圧縮比などに因って違うので、含まれて
いない。）Embodiments will be described with reference to the drawings.
1 to 4, the movement of the valve in the compression process and the expansion process of the cylinder injection gasoline engine in which the expansion process is longer than the compression process in terms of stroke. 1 to FIG. 4. FIG. 1 to FIG. 4 show the compression process of FIG. 1. The intake valve is closed, the exhaust valve is opened at the bottom dead center, and is closed just before the top dead center. (The exhaust valve shown in FIG. 1 is a diagram assuming that the piston is closed when the piston moves up by about half, and is also a diagram immediately before the closing.) FIG. 2 Compression step-2 (gasoline injection / ignition) ) The intake valve and exhaust valve are closed. Fig. 3 Expansion step-1 The intake valve opens before it expands too much to resist rotation, and the exhaust valve closes. (The intake valve shown in FIG. 3 is a view assuming that the piston is opened when the piston is lowered by about three quarters, and is also a view immediately after it is opened.) FIG. It closes at the dead point, and the exhaust valve is also closed. It is. (The valve timings of the valves shown in FIGS. 1 to 4 are not included because they differ depending on the purpose of the engine, the number of revolutions, when the number of revolutions increases, when the revolutions decrease, or due to the compression ratio, etc.)
【００１０】[0010]
【発明の効果】本発明は、以上説明したように構成され
ているので、以下に記載されるような効果を奏する。Since the present invention is configured as described above, it has the following effects.
【００１１】筒内噴射ガソリンエンジンの、本当に圧縮
する工程よりも膨張する工程の方を、ストロークで言う
ならば長くとる方法において、圧縮工程の時、排気弁
を、下死点で開き、上死点の少し手前の間で閉じる事に
因り、 圧縮比＜膨張比 の工程が行え、従来の、筒内噴射ガソリンエンジンより
も、同じ量の燃料を消費するにあたって、爆発に因って
出たエネルギー（パワー、トルク）を、より多く、ピス
トン、そして、クランク・シャフトへと伝える事ができ
る。In a method of taking a stroke of a cylinder injection gasoline engine, which expands more than a compression actually, in terms of stroke, the exhaust valve is opened at the bottom dead center during the compression step and the top dead center is reached. Due to the fact that it closes just before the point, the process of compression ratio <expansion ratio can be performed, and the energy generated by the explosion when consuming the same amount of fuel as the conventional direct injection gasoline engine More (power, torque) can be transmitted to the piston and crank shaft.
【００１２】また、圧縮工程の時、排気弁を開け過ぎた
時の対策として、膨張工程の時、膨張し過ぎて回転の抵
抗になる前に、吸気弁を開き、下死点で閉じる事に因
り、回転の抵抗も少なくなり、さらに、 圧縮比＜膨張比 の比率の割り合いが高くなり、また、排気ガスを空気に
因って、薄める事ができるので、排気の時に排気ガスが
シリンダーの中に残る割り合いが少なくなり、それに因
って、次の爆発で、完全燃焼が近づく。As a countermeasure against excessive opening of the exhaust valve during the compression process, the intake valve is opened and closed at the bottom dead center during the expansion process before it expands too much and becomes a resistance to rotation. As a result, the resistance to rotation also decreases, and the ratio of compression ratio <expansion ratio increases, and the exhaust gas can be diluted due to the air. The proportion remaining inside is reduced, and as a result, complete combustion approaches in the next explosion.
【図面の簡単な説明】[Brief description of drawings]
【図１】筒内噴射ガソリンエンジンの工程の実施例を示
す、縦断面図である。（圧縮工程−１）FIG. 1 is a vertical sectional view showing an embodiment of a process of a cylinder injection gasoline engine. (Compression process-1)
【図２】筒内噴射ガソリンエンジンの工程の実施例を示
す、縦断面図である。（圧縮工程−２）FIG. 2 is a vertical cross-sectional view showing an example of a process of a cylinder injection gasoline engine. (Compression step-2)
【図３】筒内噴射ガソリンエンジンの工程の実施例を示
す、縦断面図である。（膨張工程−１）FIG. 3 is a vertical sectional view showing an embodiment of a process of a cylinder injection gasoline engine. (Expansion step-1)
【図４】筒内噴射ガソリンエンジンの工程の実施例を示
す、縦断面図である。（膨張工程−２）FIG. 4 is a vertical cross-sectional view showing an example of a process of a cylinder injection gasoline engine. (Expansion step-2)
【符号の説明】 １ 吸気弁（吸気工程の時、上死点で開き、下死点で閉
じる弁と、膨張工程の時、膨張し過ぎて回転の抵抗にな
る前に開き、下死点で閉じる弁、を兼ねた弁） ２ 排気弁（排気工程の時、下死点で開き、上死点で閉
じる弁と、圧縮工程の時、下死点で閉き、上死点の少し
手前の間で閉じる弁、を兼ねた弁） ３ プラグ ４ ガソリン噴射器 ５ ピストン[Explanation of Codes] 1 Intake valve (a valve that opens at the top dead center during the intake stroke and closes at the bottom dead center) and an intake valve that opens before overexpanding to cause rotational resistance during the expansion stroke and opens at the bottom dead center A valve that doubles as a closing valve. 2 Exhaust valve (a valve that opens at bottom dead center during the exhaust process and closes at top dead center, and a valve that closes at bottom dead center during the compression process and is located just before top dead center) Valve that doubles as a valve that closes between each other) 3 Plug 4 Gasoline injector 5 Piston
【手続補正３】[Procedure 3]
【補正対象書類名】図面[Document name to be amended] Drawing
【補正対象項目名】全図[Correction target item name] All figures
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【図１】 FIG.
【図２】 [Fig. 2]
【図３】 [Figure 3]
【図４】 ─────────────────────────────────────────────────────
FIG. 4 ─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成８年６月２２日[Submission date] June 22, 1996
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】全文[Correction target item name] Full text
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【書類名】 明細書[Document Name] Statement
【発明の名称】 筒内噴射ガソリンエンジンの、本当
に圧縮する工程よりも膨張する工程の方を、ストローク
で言うならば長くとる方法。Title of the Invention A method in which the expansion step of a direct injection gasoline engine is longer than the actual compression step in terms of stroke.
【特許請求の範囲】[Claims]
【発明の詳細な説明】Detailed Description of the Invention
【０００１】[0001]
【産業上の利用分野】本発明は、筒内噴射ガソリンエン
ジンの、本当に圧縮する工程よりも膨張する工程の方
を、ストロークで言うならば長くとる方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for making a stroke of a cylinder injection gasoline engine longer than a true compression step in terms of stroke.
【０００２】[0002]
【従来の技術】従来の、筒内噴射ガソリンエンジンにお
いては、理論として、 圧縮比＝膨張比 であった。2. Description of the Related Art In a conventional direct injection gasoline engine, theoretically, compression ratio = expansion ratio.
【０００３】[0003]
【発明が解決しようとする課題】従来の、筒内噴射ガソ
リンエンジンにあっては、理論として、 圧縮比＝膨張比 の為、膨張しきる前に排気弁が開き、爆発に因って出た
エネルギー（パワー、トルク）を、多く排出してしま
う、と言う問題点があった。In the conventional cylinder-injection gasoline engine, the theory is that the compression ratio = expansion ratio, so the exhaust valve opens before the expansion is complete, and the energy generated due to the explosion. There is a problem that a large amount of (power, torque) is discharged.
【０００４】本発明は、筒内噴射ガソリンエンジンの、
本当に圧縮する工程よりも膨張する工程の方を、ストロ
ークで言うならば長くとる方法を得ることを目的として
おり、さらに、該方法を用いた時の、膨張工程の時の対
策を得る事を目的としている。[0004] The present invention relates to a direct injection gasoline engine.
The purpose is to obtain a method in which the process of expanding rather than the process of really compressing is taken longer in terms of stroke, and further, to obtain a measure during the expanding process when using this method. I am trying.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成する為
に、本発明の、筒内噴射ガソリンエンジンの、本当に圧
縮する工程よりも膨張する工程の方を、ストロークで言
うならば長くとる方法においては、圧縮工程の時、排気
弁を、下死点で開き、上死点の少し手前の間で閉じる。In order to achieve the above object, in the method of taking the stroke of the cylinder injection gasoline engine of the present invention, the step of expanding the cylinder rather than the step of really compressing is longer. Opens the exhaust valve at the bottom dead center and closes just before the top dead center during the compression process.
【０００６】また、圧縮工程の時、排気弁を開け過ぎた
時の対策として、膨張工程の時、膨張し過ぎて回転の抵
抗になる前に、吸気弁を開き、下死点で閉じる。Further, as a countermeasure against excessive opening of the exhaust valve during the compression process, the intake valve is opened and closed at the bottom dead center during the expansion process before it expands too much and becomes resistance to rotation.
【０００７】[0007]
【作用】上記の様に構成された、筒内噴射ガソリンエン
ジンの、本当に圧縮する工程よりも膨張する工程の方
を、ストロークで言うならば長くとる方法においては、
圧縮工程の時、排気弁を、下死点で開き、上死点の少し
手前の間で閉じる事に因り、 圧縮比＜膨張比 の工程が行える。In the method of taking the stroke of the cylinder injection gasoline engine having the above-described structure, the step of expanding the cylinder as compared with the step of really compressing is longer than that of the stroke.
During the compression process, the process of compression ratio <expansion ratio can be performed because the exhaust valve is opened at bottom dead center and closed just before top dead center.
【０００８】さらに、圧縮工程の時、排気弁を開け過ぎ
た時の対策として、膨張工程の時、膨張し過ぎて回転の
抵抗になる前に、吸気弁を開き、下死点で閉じる事に因
り、回転する時の抵抗も少なくなり、さらに、 圧縮比＜膨張比 の比率の割り合いが高くなり、また、排気ガスを空気に
因って、薄める事ができる。Further, as a measure against excessive opening of the exhaust valve during the compression process, the intake valve is opened and closed at the bottom dead center during the expansion process before it expands excessively and becomes resistance to rotation. Therefore, the resistance during rotation is reduced, the ratio of compression ratio <expansion ratio is high, and the exhaust gas can be thinned due to air.
【０００９】[0009]
【実施例】実施例について図面を参照して説明すると、
図１から図４においては、筒内噴射ガソリンエンジン
の、本当に圧縮する工程よりも膨張する工程の方を、ス
トロークで言うならば長くとる方法の、圧縮工程と膨張
工程の時の、弁の動きを示した縦断面図であり、図１か
ら図４は、 図１ 圧縮工程−１ 吸気弁は閉じ、排気弁は、下死点で開き、上死点の少し
手前の間で閉じる。（図１に示される排気弁は、ピスト
ンが２分の１程、上昇した時点で閉じると仮定した図で
あり、閉じる直前の図でもある。） 図２ 圧縮工程−２（ガソリンの噴射・点火） 吸気弁と排気弁は閉じている。 図３ 膨張工程−１ 吸気弁は、膨張し過ぎて回転の抵抗になる前に開き、排
気弁は閉じている。（図３に示される吸気弁は、ピスト
ンが４分の３程、下降した時点で開くと仮定した図であ
り、開いた直後の図でもある。） 図４ 膨張工程−２ 吸気弁は、下死点で閉じ、排気弁も閉じている。であ
る。（図１から図４に示される弁のバルブ・タイミング
は、エンジンの目的、回転数、回転数の上昇時、下降
時、あるいは、圧縮比などに因って違うので、含まれて
いない。）Embodiments will be described with reference to the drawings.
1 to 4, the movement of the valve in the compression process and the expansion process of the cylinder injection gasoline engine in which the expansion process is longer than the compression process in terms of stroke. 1 to FIG. 4. FIG. 1 to FIG. 4 show the compression process of FIG. 1. The intake valve is closed, the exhaust valve is opened at the bottom dead center, and is closed just before the top dead center. (The exhaust valve shown in FIG. 1 is a diagram assuming that the piston is closed when the piston moves up by about half, and is also a diagram immediately before the closing.) FIG. 2 Compression step-2 (gasoline injection / ignition) ) The intake valve and exhaust valve are closed. Fig. 3 Expansion step-1 The intake valve opens before it expands too much to resist rotation, and the exhaust valve closes. (The intake valve shown in FIG. 3 is a view assuming that the piston is opened when the piston is lowered by about three quarters, and is also a view immediately after it is opened.) FIG. It closes at the dead point, and the exhaust valve is also closed. It is. (The valve timings of the valves shown in FIGS. 1 to 4 are not included because they differ depending on the purpose of the engine, the number of revolutions, when the number of revolutions increases, when the revolutions decrease, or due to the compression ratio, etc.)
【００１０】[0010]
【発明の効果】本発明は、以上説明したように構成され
ているので、以下に記載されるような効果を奏する。Since the present invention is configured as described above, it has the following effects.
【００１１】筒内噴射ガソリンエンジンの、本当に圧縮
する工程よりも膨張する工程の方を、ストロークで言う
ならば長くとる方法において、圧縮工程の時、排気弁
を、下死点で開き、上死点の少し手前の間で閉じる事に
因り、 圧縮比＜膨張比 の工程が行え、従来の、筒内噴射ガソリンエンジンより
も、同じ量の燃料を消費するにあたって、爆発に因って
出たエネルギー（パワー、トルク）を、より多く、ピス
トン、そして、クランク・シャフトへと伝える事ができ
る。In a method of taking a stroke of a cylinder injection gasoline engine, which expands more than a compression actually, in terms of stroke, the exhaust valve is opened at the bottom dead center during the compression step and the top dead center is reached. Due to the fact that it closes just before the point, the process of compression ratio <expansion ratio can be performed, and the energy generated by the explosion when consuming the same amount of fuel as the conventional direct injection gasoline engine More (power, torque) can be transmitted to the piston and crank shaft.
【００１２】また、圧縮工程の時、排気弁を開け過ぎた
時の対策として、膨張工程の時、膨張し過ぎて回転の抵
抗になる前に、吸気弁を開き、下死点で閉じる事に因
り、回転の抵抗も少なくなり、さらに 圧縮比＜膨張比 の比率の割り合いが高くなり、また、排気ガスを空気に
因って、薄める事ができるので、排気の時に排気ガスが
シリンダーの中に残る割り合いが少なくなり、それに因
って、次の爆発で、完全燃焼が近づく。As a countermeasure against excessive opening of the exhaust valve during the compression process, the intake valve is opened and closed at the bottom dead center during the expansion process before it expands too much and becomes a resistance to rotation. As a result, the resistance to rotation also decreases, and the ratio of compression ratio <expansion ratio increases, and the exhaust gas can be diluted due to the air, so the exhaust gas will be in the cylinder during exhaust. There is less of the remaining percentage, and as a result, complete combustion approaches in the next explosion.
【図面の簡単な説明】[Brief description of drawings]
【図１】筒内噴射ガソリンエンジンの工程の実施例を示
す、縦断面図である。（圧縮工程−１）FIG. 1 is a vertical sectional view showing an embodiment of a process of a cylinder injection gasoline engine. (Compression process-1)
【図２】筒内噴射ガソリンエンジンの工程の実施例を示
す、縦断面図である。（圧縮工程−２）FIG. 2 is a vertical cross-sectional view showing an example of a process of a cylinder injection gasoline engine. (Compression step-2)
【図３】筒内噴射ガソリンエンジンの工程の実施例を示
す、縦断面図である。（膨張工程−１）FIG. 3 is a vertical sectional view showing an embodiment of a process of a cylinder injection gasoline engine. (Expansion step-1)
【図４】筒内噴射ガソリンエンジンの工程の実施例を示
す、縦断面図である。（膨張工程−２）FIG. 4 is a vertical cross-sectional view showing an example of a process of a cylinder injection gasoline engine. (Expansion step-2)
【符号の説明】 １ 吸気弁（吸気工程の時、上死点で開き、下死点で閉
じる弁と、膨張工程の時、膨張し過ぎて回転の抵抗にな
る前に開き、下死点で閉じる弁、を兼ねた弁） ２ 排気弁（排気工程の時、下死点で開き、上死点で閉
じる弁と、圧縮工程の時、下死点で閉き、上死点の少し
手前の間で閉じる弁、を兼ねた弁） ３ プラグ ４ ガソリン噴射器 ５ ピストン[Explanation of Codes] 1 Intake valve (a valve that opens at the top dead center during the intake stroke and closes at the bottom dead center) and an intake valve that opens before overexpanding to cause rotational resistance during the expansion stroke and opens at the bottom dead center A valve that doubles as a closing valve. 2 Exhaust valve (a valve that opens at bottom dead center during the exhaust process and closes at top dead center, and a valve that closes at bottom dead center during the compression process and is located just before top dead center) Valve that doubles as a valve that closes between each other) 3 Plug 4 Gasoline injector 5 Piston
【手続補正２】[Procedure amendment 2]
【補正対象書類名】図面[Document name to be amended] Drawing
【補正対象項目名】全図[Correction target item name] All figures
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【図１】 FIG.
【図２】 [Fig. 2]
【図３】 [Figure 3]
【図４】 ─────────────────────────────────────────────────────
FIG. 4 ─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成８年７月２７日[Submission date] July 27, 1996
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】全文[Correction target item name] Full text
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【書類名】 明細書[Document Name] Statement
【発明の名称】 筒内噴射ガソリンエンジンの、本当
に圧縮する工程よりも膨張する工程の方を、ストローク
で言うならば長くとる方法。Title of the Invention A method in which the expansion step of a direct injection gasoline engine is longer than the actual compression step in terms of stroke.
【特許請求の範囲】[Claims]
【発明の詳細な説明】Detailed Description of the Invention
【０００１】[0001]
【産業上の利用分野】本発明は、筒内噴射ガソリンエン
ジンの、本当に圧縮する工程よりも膨張する工程の方
を、ストロークで言うならば長くとる方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for making a stroke of a cylinder injection gasoline engine longer than a true compression step in terms of stroke.
【０００２】[0002]
【従来の技術】従来の、筒内噴射ガソリンエンジンにお
いては、理論として、 圧縮比＝膨張比 であった。2. Description of the Related Art In a conventional direct injection gasoline engine, theoretically, compression ratio = expansion ratio.
【０００３】[0003]
【発明が解決しようとする課題】従来の、筒内噴射ガソ
リンエンジンにあっては、理論として、 圧縮比＝膨張比 の為、膨張しきる前に排気弁が開き、爆発に因って出た
エネルギー（パワー、トルク）を、多く排出してしま
う、と言う問題点があった。In the conventional cylinder-injection gasoline engine, the theory is that the compression ratio = expansion ratio, so the exhaust valve opens before the expansion is complete, and the energy generated due to the explosion. There is a problem that a large amount of (power, torque) is discharged.
【０００４】本発明は、筒内噴射ガソリンエンジンの、
本当に圧縮する工程よりも膨張する工程の方を、ストロ
ークで言うならば長くとる方法を得ることを目的として
おり、さらに、該方法を用いた時の、膨張工程の時の対
策を得る事を目的としている。[0004] The present invention relates to a direct injection gasoline engine.
The purpose is to obtain a method in which the process of expanding rather than the process of really compressing is taken longer in terms of stroke, and further, to obtain a measure during the expanding process when using this method. I am trying.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成する為
に、本発明の、筒内噴射ガソリンエンジンの、本当に圧
縮する工程よりも膨張する工程の方を、ストロークで言
うならば長くとる方法においては、圧縮工程の時、排気
弁を、下死点で開き、上死点の少し手前の間で閉じる。In order to achieve the above object, in the method of taking the stroke of the cylinder injection gasoline engine of the present invention, the step of expanding the cylinder rather than the step of really compressing is longer. Opens the exhaust valve at the bottom dead center and closes just before the top dead center during the compression process.
【０００６】また、圧縮工程の時、排気弁を開け過ぎた
時の対策として、膨張工程の時、膨張し過ぎて回転の抵
抗になる前に、吸気弁を開き、下死点で閉じる。Further, as a countermeasure against excessive opening of the exhaust valve during the compression process, the intake valve is opened and closed at the bottom dead center during the expansion process before it expands too much and becomes resistance to rotation.
【０００７】[0007]
【作用】上記の様に構成された、筒内噴射ガソリンエン
ジンの、本当に圧縮する工程よりも膨張する工程の方
を、ストロークで言うならば長くとる方法においては、
圧縮工程の時、排気弁を、下死点で開き、上死点の少し
手前の間で閉じる事に因り、 圧縮比＜膨張比 の工程が行える。In the method of taking the stroke of the cylinder injection gasoline engine having the above-described structure, the step of expanding the cylinder as compared with the step of really compressing is longer than that of the stroke.
During the compression process, the process of compression ratio <expansion ratio can be performed because the exhaust valve is opened at bottom dead center and closed just before top dead center.
【０００８】さらに、圧縮工程の時、排気弁を開け過ぎ
た時の対策として、膨張工程の時、膨張し過ぎて回転の
抵抗になる前に、吸気弁を開き、下死点で閉じる事に因
り、回転する時の抵抗も少なくなり、さらに、 圧縮比＜膨張比 の比率の割り合いが高くなり、また、排気ガスを空気に
因って、薄める事ができる。Further, as a measure against excessive opening of the exhaust valve during the compression process, the intake valve is opened and closed at the bottom dead center during the expansion process before it expands excessively and becomes resistance to rotation. Therefore, the resistance during rotation is reduced, the ratio of compression ratio <expansion ratio is high, and the exhaust gas can be thinned due to air.
【０００９】[0009]
【実施例】実施例について図面を参照して説明すると、
図１から図４においては、筒内噴射ガソリンエンジン
の、本当に圧縮する工程よりも膨張する工程の方を、ス
トロークで言うならば長くとる方法の、圧縮工程と膨張
工程の時の、弁の動きを示した縦断面図であり、図１か
ら図４は、 図１ 圧縮工程−１ 吸気弁は閉じ、排気弁は、下死点で開き、上死点の少し
手前の間で閉じる。（図１に示される排気弁は、ピスト
ンが２分の１程、上昇した時点で閉じると仮定した図で
あり、閉じる直前の図でもある。） 図２ 圧縮工程−２（ガソリンの噴射・点火） 吸気弁と排気弁は閉じている。 図３ 膨張工程−１ 吸気弁は、膨張し過ぎて回転の抵抗になる前に開き、排
気弁は閉じている。（図３に示される吸気弁は、ピスト
ンが４分の３程、下降した時点で開くと仮定した図であ
り、開いた直後の図でもある。） 図４ 膨張工程−２ 吸気弁は、下死点で閉じ、排気弁も閉じている。であ
る。（図１から図４に示される弁のバルブ・タイミング
は、エンジンの目的、回転数、回転数の上昇時、下降
時、あるいは、圧縮比などに因って違うので、含まれて
いない。）Embodiments will be described with reference to the drawings.
1 to 4, the movement of the valve in the compression process and the expansion process of the cylinder injection gasoline engine in which the expansion process is longer than the compression process in terms of stroke. 1 to FIG. 4. FIG. 1 to FIG. 4 show the compression process of FIG. 1. The intake valve is closed, the exhaust valve is opened at the bottom dead center, and is closed just before the top dead center. (The exhaust valve shown in FIG. 1 is a diagram assuming that the piston is closed when the piston moves up by about half, and is also a diagram immediately before the closing.) FIG. 2 Compression step-2 (gasoline injection / ignition) ) The intake valve and exhaust valve are closed. Fig. 3 Expansion step-1 The intake valve opens before it expands too much to resist rotation, and the exhaust valve closes. (The intake valve shown in FIG. 3 is a view assuming that the piston is opened when the piston is lowered by about three quarters, and is also a view immediately after it is opened.) FIG. It closes at the dead point, and the exhaust valve is also closed. It is. (The valve timings of the valves shown in FIGS. 1 to 4 are not included because they differ depending on the purpose of the engine, the number of revolutions, when the number of revolutions increases, when the number of revolutions decreases, or due to the compression ratio.
【００１０】[0010]
【発明の効果】本発明は、以上説明したように構成され
ているので、以下に記載されるような効果を奏する。Since the present invention is configured as described above, it has the following effects.
【００１１】筒内噴射ガソリンエンジンの、本当に圧縮
する工程よりも膨張する工程の方を、ストロークで言う
ならば長くとる方法において、圧縮工程の時、排気弁
を、下死点で開き、上死点の少し手前の間で閉じる事に
因り、 圧縮比＜膨張比 の工程が行え、従来の、筒内噴射ガソリンエンジンより
も、同じ量の燃料を消費するにあたって、爆発に因って
出たエネルギー（パワー、トルク）を、より多く、ピス
トン、そして、クランク・シャフトへと伝える事ができ
る。In a method of taking a stroke of a cylinder injection gasoline engine, which expands more than a compression actually, in terms of stroke, the exhaust valve is opened at the bottom dead center during the compression step and the top dead center is reached. Due to the fact that it closes just before the point, the process of compression ratio <expansion ratio can be performed, and the energy generated by the explosion when consuming the same amount of fuel as the conventional direct injection gasoline engine More (power, torque) can be transmitted to the piston and crank shaft.
【００１２】また、圧縮工程の時、排気弁を開け過ぎた
時の対策として、膨張工程の時、膨張し過ぎて回転の抵
抗になる前に、吸気弁を開き、下死点で閉じる事に因
り、回転の抵抗も少なくなり、さらに 圧縮比＜膨張比 の比率の割り合いが高くなり、また、排気ガスを空気に
因って、薄める事ができるので、排気の時に排気ガスが
シリンダーの中に残る割り合いが少なくなり、それに因
って、次の爆発で、完全燃焼が近づく。As a countermeasure against excessive opening of the exhaust valve during the compression process, the intake valve is opened and closed at the bottom dead center during the expansion process before it expands too much and becomes a resistance to rotation. As a result, the resistance to rotation also decreases, and the ratio of compression ratio <expansion ratio increases, and the exhaust gas can be diluted due to the air, so the exhaust gas will be in the cylinder during exhaust. There is less of the remaining percentage, and as a result, complete combustion approaches in the next explosion.
【図面の簡単な説明】[Brief description of drawings]
【図１】筒内噴射ガソリンエンジンの工程の実施例を示
す、縦断面図である。（圧縮工程−１）FIG. 1 is a vertical sectional view showing an embodiment of a process of a cylinder injection gasoline engine. (Compression process-1)
【図２】筒内噴射ガソリンエンジンの工程の実施例を示
す、縦断面図である。（圧縮工程−２）FIG. 2 is a vertical cross-sectional view showing an example of a process of a cylinder injection gasoline engine. (Compression step-2)
【図３】筒内噴射ガソリンエンジンの工程の実施例を示
す、縦断面図である。（膨張工程−１）FIG. 3 is a vertical sectional view showing an embodiment of a process of a cylinder injection gasoline engine. (Expansion step-1)
【図４】筒内噴射ガソリンエンジンの工程の実施例を示
す、縦断面図である。（膨張工程−２）FIG. 4 is a vertical cross-sectional view showing an example of a process of a cylinder injection gasoline engine. (Expansion step-2)
【符号の説明】 １ 吸気弁（吸気工程の時、上死点で開き、下死点で閉
じる弁と、膨張工程の時、膨張し過ぎて回転の抵抗にな
る前に開き、下死点で閉じる弁、を兼ねた弁） ２ 排気弁（排気工程の時、下死点で開き、上死点で閉
じる弁と、圧縮工程の時、下死点で開き、上死点の少し
手前の間で閉じる弁、を兼ねた弁） ３ プラグ ４ ガソリン噴射器 ５ ピストン[Explanation of Codes] 1 Intake valve (a valve that opens at the top dead center during the intake stroke and closes at the bottom dead center) and an intake valve that opens before overexpanding to cause rotational resistance during the expansion stroke and opens at the bottom dead center 2) Exhaust valve (opens at bottom dead center during the exhaust process and closes at top dead center during the exhaust process, and opens at bottom dead center during the compression process, just before top dead center) Valve that doubles as a valve that doubles as a valve) 3 Plug 4 Gasoline injector 5 Piston
【手続補正２】[Procedure amendment 2]
【補正対象書類名】図面[Document name to be amended] Drawing
【補正対象項目名】全図[Correction target item name] All figures
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【図１】 FIG.
【図２】 [Fig. 2]
【図３】 [Figure 3]
【図４】 ─────────────────────────────────────────────────────
FIG. 4 ─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成８年１１月３０日[Submission date] November 30, 1996
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】全文[Correction target item name] Full text
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【書類名】 明細書[Document Name] Statement
【発明の名称】 筒内噴射ガソリンエンジンの、本当
に圧縮する工程よりも膨張する工程の方を、ストローク
で言うならば長くとる方法。Title of the Invention A method in which the expansion step of a direct injection gasoline engine is longer than the actual compression step in terms of stroke.
【特許請求の範囲】[Claims]
【発明の詳細な説明】Detailed Description of the Invention
【０００１】[0001]
【産業上の利用分野】本発明は、筒内噴射ガソリンエン
ジンの、本当に圧縮する工程よりも膨張する工程の方
を、ストロークで言うならば長くとる方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for making a stroke of a cylinder injection gasoline engine longer than a true compression step in terms of stroke.
【０００２】[0002]
【従来の技術】従来の、筒内噴射ガソリンエンジンにお
いては、理論として、 圧縮比＝膨張比 であった。2. Description of the Related Art In a conventional direct injection gasoline engine, theoretically, compression ratio = expansion ratio.
【０００３】[0003]
【発明が解決しようとする課題】従来の、筒内噴射ガソ
リンエンジンにあっては、理論として、 圧縮比＝膨張比 の為、膨張しきる前に排気弁が開き、爆発に因って出た
エネルギー（パワー、トルク）を、多く排出してしま
う、と言う問題点があった。In the conventional cylinder-injection gasoline engine, the theory is that the compression ratio = expansion ratio, so the exhaust valve opens before the expansion is complete, and the energy generated due to the explosion. There is a problem that a large amount of (power, torque) is discharged.
【０００４】本発明は、筒内噴射ガソリンエンジンの、
本当に圧縮する工程よりも膨張する工程の方を、ストロ
ークで言うならば長くとる方法を得ることを目的として
おり、さらに、該方法を用いた時の、膨張工程の時の対
策を得る事を目的としている。[0004] The present invention relates to a direct injection gasoline engine.
The purpose is to obtain a method in which the process of expanding rather than the process of really compressing is taken longer in terms of stroke, and further, to obtain a measure during the expanding process when using this method. I am trying.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成する為
に、本発明の、筒内噴射ガソリンエンジンの、本当に圧
縮する工程よりも膨張する工程の方を、ストロークで言
うならば長くとる方法においては、圧縮工程の時、排気
弁を、下死点で開き、上死点の少し手前の間で閉じる。In order to achieve the above object, in the method of taking the stroke of the cylinder injection gasoline engine of the present invention, the step of expanding the cylinder rather than the step of really compressing is longer. Opens the exhaust valve at the bottom dead center and closes just before the top dead center during the compression process.
【０００６】また、圧縮工程の時、排気弁を開け過ぎた
時の対策として、膨張工程の時、膨張し過ぎて回転の抵
抗になる前に、吸気弁を開き、下死点で閉じる。Further, as a countermeasure against excessive opening of the exhaust valve during the compression process, the intake valve is opened and closed at the bottom dead center during the expansion process before it expands too much and becomes resistance to rotation.
【０００７】[0007]
【作用】上記の様に構成された、筒内噴射ガソリンエン
ジンの、本当に圧縮する工程よりも膨張する工程の方
を、ストロークで言うならば長くとる方法においては、
圧縮工程の時、排気弁を、下死点で開き、上死点の少し
手前の間で閉じる事に因り、 圧縮比＜膨張比 の工程が行える。In the method of taking the stroke of the cylinder injection gasoline engine having the above-described structure, the step of expanding the cylinder as compared with the step of really compressing is longer than that of the stroke.
During the compression process, the process of compression ratio <expansion ratio can be performed because the exhaust valve is opened at bottom dead center and closed just before top dead center.
【０００８】さらに、圧縮工程の時、排気弁を開け過ぎ
た時の対策として、膨張工程の時、膨張し過ぎて回転の
抵抗になる前に、吸気弁を開き、下死点で閉じる事に因
り、回転する時の抵抗も少なくなり、さらに、 圧縮比＜膨張比 の比率の割り合いが高くなり、また、排気ガスを空気に
因って、薄める事ができる。Further, as a measure against excessive opening of the exhaust valve during the compression process, the intake valve is opened and closed at the bottom dead center during the expansion process before it expands excessively and becomes resistance to rotation. Therefore, the resistance during rotation is reduced, the ratio of compression ratio <expansion ratio is high, and the exhaust gas can be thinned due to air.
【０００９】[0009]
【実施例】実施例について図面を参照して説明すると、
図１から図４においては、筒内噴射ガソリンエンジン
の、本当に圧縮する工程よりも膨張する工程の方を、ス
トロークで言うならば長くとる方法の、圧縮工程と膨張
工程の時の、弁の動きを示した縦断面図であり、図１か
ら図４は、 図１ 圧縮工程−１ 吸気弁は閉じ、排気弁は、下死点で開き、上死点の少し
手前の間で閉じる。（図１に示される排気弁は、ピスト
ンが２分の１程、上昇した時点で閉じると仮定した図で
あり、閉じる直前の図でもある。） 図２ 圧縮工程−２（ガソリンの噴射・点火） 吸気弁と排気弁は閉じている。 図３ 膨張工程−１ 吸気弁は、膨張し過ぎて回転の抵抗になる前に開き、排
気弁は閉じている。（図３に示される吸気弁は、ピスト
ンが４分の３程、下降した時点で開くと仮定した図であ
り、開いた直後の図でもある。） 図４ 膨張工程−２ 吸気弁は、下死点で閉じ、排気弁も閉じている。であ
る。（図１から図４に示される弁のバルブ・タイミング
は、エンジンの目的、回転数、回転数の上昇時、下降
時、あるいは、圧縮比などに因って違うので、含まれて
いない。）Embodiments will be described with reference to the drawings.
1 to 4, the movement of the valve in the compression process and the expansion process of the cylinder injection gasoline engine in which the expansion process is longer than the compression process in terms of stroke. 1 to FIG. 4. FIG. 1 to FIG. 4 show the compression process of FIG. 1. The intake valve is closed, the exhaust valve is opened at the bottom dead center, and is closed just before the top dead center. (The exhaust valve shown in FIG. 1 is a diagram assuming that the piston is closed when the piston moves up by about half, and is also a diagram immediately before the closing.) FIG. 2 Compression step-2 (gasoline injection / ignition) ) The intake valve and exhaust valve are closed. Fig. 3 Expansion step-1 The intake valve opens before it expands too much to resist rotation, and the exhaust valve closes. (The intake valve shown in FIG. 3 is a view assuming that the piston is opened when the piston is lowered by about three quarters, and is also a view immediately after it is opened.) FIG. It closes at the dead point, and the exhaust valve is also closed. It is. (The valve timings of the valves shown in FIGS. 1 to 4 are not included because they differ depending on the purpose of the engine, the number of revolutions, when the number of revolutions increases, when the number of revolutions decreases, or the compression ratio.)
【００１０】[0010]
【発明の効果】本発明は、以上説明したように構成され
ているので、以下に記載されるような効果を奏する。Since the present invention is configured as described above, it has the following effects.
【００１１】筒内噴射ガソリンエンジンの、本当に圧縮
する工程よりも膨張する工程の方を、ストロークで言う
ならば長くとる方法において、圧縮工程の時、排気弁
を、下死点で開き、上死点の少し手前の間で閉じる事に
因り、 圧縮比＜膨張比 の工程が行え、従来の、筒内噴射ガソリンエンジンより
も、同じ量の燃料を消費するにあたって、爆発に因って
出たエネルギー（パワー、トルク）を、より多く、ピス
トン、そして、クランク・シャフトへと伝える事ができ
る。In a method of taking a stroke of a cylinder injection gasoline engine, which expands more than a compression actually, in terms of stroke, the exhaust valve is opened at the bottom dead center during the compression step and the top dead center is reached. Due to the fact that it closes just before the point, the process of compression ratio <expansion ratio can be performed, and the energy generated by the explosion when consuming the same amount of fuel as the conventional direct injection gasoline engine More (power, torque) can be transmitted to the piston and crank shaft.
【００１２】また、圧縮工程の時、排気弁を開け過ぎた
時の対策として、膨張工程の時、膨張し過ぎて回転の抵
抗になる前に、吸気弁を開き、下死点で閉じる事に因
り、回転の抵抗も少なくなり、さらに 圧縮比＜膨張比 の比率の割り合いが高くなり、また、排気ガスを空気に
因って、薄める事ができるので、排気の時に排気ガスが
シリンダーの中に残る割り合いが少なくなり、それに因
って、次の爆発で、完全燃焼が近づく。As a countermeasure against excessive opening of the exhaust valve during the compression process, the intake valve is opened and closed at the bottom dead center during the expansion process before it expands too much and becomes a resistance to rotation. As a result, the resistance to rotation also decreases, and the ratio of compression ratio <expansion ratio increases, and the exhaust gas can be diluted due to the air, so the exhaust gas will be in the cylinder during exhaust. There is less of the remaining percentage, and as a result, complete combustion approaches in the next explosion.
【図面の簡単な説明】[Brief description of drawings]
【図１】筒内噴射ガソリンエンジンの工程の実施例を示
す、縦断面図である。（圧縮工程−１）FIG. 1 is a vertical sectional view showing an embodiment of a process of a cylinder injection gasoline engine. (Compression process-1)
【図２】筒内噴射ガソリンエンジンの工程の実施例を示
す、縦断面図である。（圧縮工程−２）FIG. 2 is a vertical cross-sectional view showing an example of a process of a cylinder injection gasoline engine. (Compression step-2)
【図３】筒内噴射ガソリンエンジンの工程の実施例を示
す、縦断面図である。（膨張工程−１）FIG. 3 is a vertical sectional view showing an embodiment of a process of a cylinder injection gasoline engine. (Expansion step-1)
【図４】筒内噴射ガソリンエンジンの工程の実施例を示
す、縦断面図である。（膨張工程−２）FIG. 4 is a vertical cross-sectional view showing an example of a process of a cylinder injection gasoline engine. (Expansion step-2)
【符号の説明】 １ 吸気弁（吸気工程の時、上死点で開き、下死点で閉
じる弁と、膨張工程の時、膨張し過ぎて回転の抵抗にな
る前に開き、下死点で閉じる弁、を兼ねた弁） ２ 排気弁（排気工程の時、下死点で開き、上死点で閉
じる弁と、圧縮工程の時、下死点で開き、上死点の少し
手前の間で閉じる弁、を兼ねた弁） ３ プラグ ４ 燃料噴射器 ５ ピストン ６ 吸気管 ７ 排気管[Explanation of Codes] 1 Intake valve (a valve that opens at the top dead center during the intake stroke and closes at the bottom dead center) and an intake valve that opens before it expands too much and becomes rotational resistance during the expansion stroke 2) Exhaust valve (opens at bottom dead center during the exhaust process and closes at top dead center during the exhaust process, and opens at bottom dead center during the compression process, just before top dead center) Valve that doubles as a valve that doubles as a valve) 3 Plug 4 Fuel injector 5 Piston 6 Intake pipe 7 Exhaust pipe
【手続補正２】[Procedure amendment 2]
【補正対象書類名】図面[Document name to be amended] Drawing
【補正対象項目名】全図[Correction target item name] All figures
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【図１】 FIG.
【図２】 [Fig. 2]
【図３】 [Figure 3]
【図４】 ─────────────────────────────────────────────────────
FIG. 4 ─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成９年１月２６日[Submission date] January 26, 1997
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】全文[Correction target item name] Full text
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【書類名】 明細書[Document Name] Statement
【発明の名称】 筒内噴射ガソリンエンジンの、本当
に圧縮する工程よりも膨張する工程の方を、ストローク
で言うならば長くとる方法。Title of the Invention A method in which the expansion step of a direct injection gasoline engine is longer than the actual compression step in terms of stroke.
【特許請求の範囲】[Claims]
【発明の詳細な説明】Detailed Description of the Invention
【０００１】[0001]
【産業上の利用分野】本発明は、筒内噴射ガソリンエン
ジンの、本当に圧縮する工程よりも膨張する工程の方
を、ストロークで言うならば長くとる方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of lengthening a stroke of a cylinder injection gasoline engine in which the expansion process is longer than the actual compression process.
【０００２】[0002]
【従来の技術】従来の、筒内噴射ガソリンエンジンにお
いては、理論として、 圧縮比＝膨張比 であった。2. Description of the Related Art In a conventional direct injection gasoline engine, theoretically, compression ratio = expansion ratio.
【０００３】[0003]
【発明が解決しようとする課題】従来の、筒内噴射ガソ
リンエンジンにあっては、理論として、 圧縮比＝膨張比 の為、膨張しきる前に排気弁が開き、爆発に因って出た
エネルギー（パワー、トルク）を、多く排出してしま
う、と言う問題点があった。In the conventional cylinder-injection gasoline engine, the theory is that the compression ratio = expansion ratio, so the exhaust valve opens before the expansion is complete, and the energy generated due to the explosion. There is a problem that a large amount of (power, torque) is discharged.
【０００４】本発明は、筒内噴射ガソリンエンジンの、
本当に圧縮する工程よりも膨張する工程の方を、ストロ
ークで言うならば長くとる方法を得ることを目的として
おり、さらに、該方法を用いた時の、膨張工程の時の対
策を得る事を目的としている。[0004] The present invention relates to a direct injection gasoline engine.
The purpose is to obtain a method of taking a stroke that is longer than the step of really compressing in terms of stroke, and further to obtain a measure during the expansion step when using the method. I am trying.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成する為
に、本発明の、筒内噴射ガソリンエンジンの、本当に圧
縮する工程よりも膨張する工程の方を、ストロークで言
うならば長くとる方法においては、圧縮工程の時、排気
弁を、下死点で開き、上死点の少し手前の間で閉じる。In order to achieve the above object, in the method of taking the stroke of the cylinder injection gasoline engine of the present invention, the step of expanding the cylinder rather than the step of really compressing is longer. Opens the exhaust valve at the bottom dead center and closes just before the top dead center during the compression process.
【０００６】また、圧縮工程の時、排気弁を開け過ぎた
時の対策として、膨張工程の時、膨張し過ぎて回転の抵
抗になる前に、吸気弁を開き、下死点で閉じる。Further, as a countermeasure against excessive opening of the exhaust valve during the compression process, the intake valve is opened and closed at the bottom dead center during the expansion process before it expands too much and becomes resistance to rotation.
【０００７】[0007]
【作用】上記の様に構成された、筒内噴射ガソリンエン
ジンの、本当に圧縮する工程よりも膨張する工程の方
を、ストロークで言うならば長くとる方法においては、
圧縮工程の時、排気弁を、下死点で開き、上死点の少し
手前の間で閉じる事に因り、 圧縮比＜膨張比 の工程が行える。In the method of taking the stroke of the in-cylinder injection gasoline engine configured as described above, which is longer than the actual compression step, in terms of stroke,
During the compression process, the process of compression ratio <expansion ratio can be performed because the exhaust valve is opened at bottom dead center and closed just before top dead center.
【０００８】さらに、圧縮工程の時、排気弁を開け過ぎ
た時の対策として、膨張工程の時、膨張し過ぎて回転の
抵抗になる前に、吸気弁を開き、下死点で閉じる事に因
り、回転する時の抵抗も少なくなり、さらに、 圧縮比＜膨張比 の比率の割り合いが高くなり、また、排気ガスを空気に
因って、薄める事ができる。Further, as a measure against excessive opening of the exhaust valve during the compression process, the intake valve is opened and closed at the bottom dead center during the expansion process before it expands excessively and becomes resistance to rotation. Therefore, the resistance during rotation is reduced, the ratio of compression ratio <expansion ratio is high, and the exhaust gas can be thinned due to air.
【０００９】[0009]
【実施例】実施例について図面を参照して説明すると、
図１から図４においては、筒内噴射ガソリンエンジン
の、本当に圧縮する工程よりも膨張する工程の方を、ス
トロークで言うならば長くとる方法の、圧縮工程と膨張
工程の時の、弁の動きを示した縦断面図であり、図１か
ら図４は、 図１ 圧縮工程−１ 吸気弁は閉じ、排気弁は、下死点で開き、上死点の少し
手前の間で閉じる。（図１に示される排気弁は、ピスト
ンが２分の１程、上昇した時点で閉じると仮定した図で
あり、閉じる直前の図でもある。） 図２ 圧縮工程−２（ガソリンの噴射・点火） 吸気弁と排気弁は閉じている。 図３ 膨張工程−１ 吸気弁は、膨張し過ぎて回転の抵抗になる前に開き、排
気弁は閉じている。（図３に示される吸気弁は、ピスト
ンが４分の３程、下降した時点で開くと仮定した図であ
り、開いた直後の図でもある。） 図４ 膨張工程−２ 吸気弁は、下死点で閉じ、排気弁も閉じている。であ
る。（図１から図４に示される弁のバルブ・タイミング
は、エンジンの目的、回転数、回転数の上昇時、下降
時、あるいは、圧縮比などに因って違うので、含まれて
いない。）Embodiments will be described with reference to the drawings.
1 to 4, the movement of the valve in the compression process and the expansion process of the cylinder injection gasoline engine in which the expansion process is longer than the compression process in terms of stroke. 1 to FIG. 4. FIG. 1 to FIG. 4 show the compression process of FIG. 1. The intake valve is closed, the exhaust valve is opened at the bottom dead center, and is closed just before the top dead center. (The exhaust valve shown in FIG. 1 is a diagram assuming that the piston closes when the piston moves up by about half, and is also a diagram immediately before the closing.) FIG. 2 Compression process-2 (injection / ignition of gasoline) ) The intake valve and exhaust valve are closed. Fig. 3 Expansion process-1 The intake valve opens before it expands too much to resist rotation, and the exhaust valve closes. (The intake valve shown in FIG. 3 is a view assuming that the piston is opened when the piston is lowered by about three quarters, and is also a view immediately after the opening.) FIG. It closes at the dead point, and the exhaust valve is also closed. It is. (The valve timings of the valves shown in FIGS. 1 to 4 are not included because they differ depending on the purpose of the engine, the number of revolutions, when the number of revolutions increases, when the number of revolutions decreases, or the compression ratio.)
【００１０】[0010]
【発明の効果】本発明は、以上説明したように構成され
ているので、以下に記載されるような効果を奏する。Since the present invention is configured as described above, it has the following effects.
【００１１】筒内噴射ガソリンエンジンの、本当に圧縮
する工程よりも膨張する工程の方を、ストロークで言う
ならば長くとる方法において、圧縮工程の時、排気弁
を、下死点で開き、上死点の少し手前の間で閉じる事に
因り、 圧縮比＜膨張比 の工程が行え、従来の、筒内噴射ガソリンエンジンより
も、同じ量の燃料を消費するにあたって、爆発に因って
出たエネルギー（パワー、トルク）を、より多く、ピス
トン、そして、クランク・シャフトへと伝える事ができ
る。In a method of taking a stroke of a cylinder injection gasoline engine, which expands more than a compression actually, in terms of stroke, the exhaust valve is opened at the bottom dead center during the compression step and the top dead center is reached. Due to the fact that it closes just before the point, the process of compression ratio <expansion ratio can be performed, and the energy generated by the explosion when consuming the same amount of fuel as the conventional direct injection gasoline engine More (power, torque) can be transmitted to the piston and crank shaft.
【００１２】また、圧縮工程の時、排気弁を開け過ぎた
時の対策として、膨張工程の時、膨張し過ぎて回転の抵
抗になる前に、吸気弁を開き、下死点で閉じる事に因
り、回転の抵抗も少なくなり、さらに 圧縮比＜膨張比 の比率の割り合いが高くなり、また、排気ガスを空気に
因って、薄める事ができるので、排気の時に排気ガスが
シリンダーの中に残る割り合いが少なくなり、それに因
って、次の爆発で、完全燃焼が近づく。As a countermeasure against excessive opening of the exhaust valve during the compression process, the intake valve is opened and closed at the bottom dead center during the expansion process before it expands too much and becomes a resistance to rotation. As a result, the resistance to rotation also decreases, and the ratio of compression ratio <expansion ratio increases, and the exhaust gas can be diluted due to the air, so the exhaust gas will be in the cylinder during exhaust. There is less of the remaining percentage, and as a result, complete combustion approaches in the next explosion.
【図面の簡単な説明】[Brief description of drawings]
【図１】筒内噴射ガソリンエンジンの工程の実施例を示
す、縦断面図である。（圧縮工程−１）FIG. 1 is a vertical sectional view showing an embodiment of a process of a cylinder injection gasoline engine. (Compression process-1)
【図２】筒内噴射ガソリンエンジンの工程の実施例を示
す、縦断面図である。（圧縮工程−２）FIG. 2 is a vertical cross-sectional view showing an example of a process of a cylinder injection gasoline engine. (Compression step-2)
【図３】筒内噴射ガソリンエンジンの工程の実施例を示
す、縦断面図である。（膨張工程−１）FIG. 3 is a vertical sectional view showing an embodiment of a process of a cylinder injection gasoline engine. (Expansion step-1)
【図４】筒内噴射ガソリンエンジンの工程の実施例を示
す、縦断面図である。（膨張工程−２）FIG. 4 is a vertical cross-sectional view showing an example of a process of a cylinder injection gasoline engine. (Expansion step-2)
【符号の説明】 １ 吸気弁（吸気工程の時、上死点で開き、下死点で閉
じる弁と、膨張工程の時、膨張し過ぎて回転の抵抗にな
る前に開き、下死点で閉じる弁、を兼ねた弁） ２ 排気弁（排気工程の時、下死点で開き、上死点で閉
じる弁と、圧縮工程の時、下死点で開き、上死点の少し
手前の間で閉じる弁、を兼ねた弁） ３ プラグ ４ 燃料噴射器 ５ ピストン ６ 吸気管 ７ 排気管[Explanation of Codes] 1 Intake valve (a valve that opens at the top dead center during the intake stroke and closes at the bottom dead center) and an intake valve that opens before it expands too much and becomes rotational resistance during the expansion stroke 2) Exhaust valve (opens at bottom dead center during the exhaust process and closes at top dead center during the exhaust process, and opens at bottom dead center during the compression process, just before top dead center) Valve that doubles as a valve that doubles as a valve) 3 Plug 4 Fuel injector 5 Piston 6 Intake pipe 7 Exhaust pipe
【手続補正２】[Procedure amendment 2]
【補正対象書類名】図面[Document name to be amended] Drawing
【補正対象項目名】全図[Correction target item name] All figures
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【図１】 FIG.
【図２】 [Fig. 2]
【図３】 [Figure 3]
【図４】 ─────────────────────────────────────────────────────
FIG. 4 ─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成９年４月１８日[Submission date] April 18, 1997
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】全文[Correction target item name] Full text
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【書類名】 明細書[Document Name] Statement
【発明の名称】 筒内噴射ガソリンエンジンの、本当
に圧縮する工程よりも膨張する工程の方を、ストローク
で言うならば長くとる方法。Title of the Invention A method in which the expansion step of a direct injection gasoline engine is longer than the actual compression step in terms of stroke.
【特許請求の範囲】[Claims]
【発明の詳細な説明】Detailed Description of the Invention
【０００１】[0001]
【産業上の利用分野】本発明は、筒内噴射ガソリンエン
ジンの、本当に圧縮する工程よりも膨張する工程の方
を、ストロークで言うならば長くとる方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of lengthening a stroke of a cylinder injection gasoline engine in which the expansion process is longer than the actual compression process.
【０００２】[0002]
【従来の技術】従来の、筒内噴射ガソリンエンジンにお
いては、理論として、 圧縮比＝膨張比 であった。2. Description of the Related Art In a conventional direct injection gasoline engine, theoretically, compression ratio = expansion ratio.
【０００３】[0003]
【発明が解決しようとする課題】従来の、筒内噴射ガソ
リンエンジンにあっては、理論として、 圧縮比＝膨張比 の為、膨張しきる前に排気弁が開き、爆発に因って出た
エネルギー（パワー、トルク）を、多く排出してしま
う、と言う問題点があった。In the conventional cylinder-injection gasoline engine, the theory is that the compression ratio = expansion ratio, so the exhaust valve opens before the expansion is complete, and the energy generated due to the explosion. There is a problem that a large amount of (power, torque) is discharged.
【０００４】本発明は、筒内噴射ガソリンエンジンの、
本当に圧縮する工程よりも膨張する工程の方を、ストロ
ークで言うならば長くとる方法を得ることを目的として
おり、さらに、該方法を用いた時の、膨張工程の時の対
策を得る事を目的としている。[0004] The present invention relates to a direct injection gasoline engine.
The purpose is to obtain a method of taking a stroke that is longer than the step of really compressing in terms of stroke, and further to obtain a measure during the expansion step when using the method. I am trying.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成する為
に、本発明の、筒内噴射ガソリンエンジンの、本当に圧
縮する工程よりも膨張する工程の方を、ストロークで言
うならば長くとる方法においては、圧縮工程の時、排気
弁を、下死点で開き、上死点の少し手前の間で閉じる。In order to achieve the above object, in the method of taking the stroke of the cylinder injection gasoline engine of the present invention, the step of expanding the cylinder rather than the step of really compressing is longer. Opens the exhaust valve at the bottom dead center and closes just before the top dead center during the compression process.
【０００６】また、圧縮工程の時、排気弁を開け過ぎた
時の対策として、膨張工程の時、膨張し過ぎて回転の抵
抗になる前に、吸気弁を開き、下死点で閉じる。Further, as a countermeasure against excessive opening of the exhaust valve during the compression process, the intake valve is opened and closed at the bottom dead center during the expansion process before it expands too much and becomes resistance to rotation.
【０００７】[0007]
【作用】上記の様に構成された、筒内噴射ガソリンエン
ジンの、本当に圧縮する工程よりも膨張する工程の方
を、ストロークで言うならば長くとる方法においては、
圧縮工程の時、排気弁を、下死点で開き、上死点の少し
手前の間で閉じる事に因り、 圧縮比＜膨張比 の工程が行える。In the method of taking the stroke of the in-cylinder injection gasoline engine configured as described above, which is longer than the actual compression step, in terms of stroke,
During the compression process, the process of compression ratio <expansion ratio can be performed because the exhaust valve is opened at bottom dead center and closed just before top dead center.
【０００８】さらに、圧縮工程の時、排気弁を開け過ぎ
た時の対策として、膨張工程の時、膨張し過ぎて回転の
抵抗になる前に、吸気弁を開き、下死点で閉じる事に因
り、回転する時の抵抗も少なくなり、さらに、 圧縮比＜膨張比 の比率の割り合いが高くなり、また、排気ガスを空気に
因って、薄める事ができ、さらに、膨張工程もスムーズ
に行える。Further, as a measure against excessive opening of the exhaust valve during the compression process, the intake valve is opened and closed at the bottom dead center during the expansion process before it expands excessively and becomes resistance to rotation. As a result, the resistance during rotation is reduced, the ratio of compression ratio <expansion ratio is high, and the exhaust gas can be thinned due to air, and the expansion process is smooth. You can do it.
【０００９】[0009]
【実施例】実施例について図面を参照して説明すると、
図１から図４においては、筒内噴射ガソリンエンジン
の、本当に圧縮する工程よりも膨張する工程の方を、ス
トロークで言うならば長くとる方法の、圧縮工程と膨張
工程の時の、弁の動きを示した縦断面図であり、図１か
ら図４は、 図１ 圧縮工程−１ 吸気弁は閉じ、排気弁は、下死点で開き、上死点の少し
手前の間で閉じる。（図１に示される排気弁は、ピスト
ンが２分の１程、上昇した時点で閉じると仮定した図で
あり、閉じる直前の図でもある。） 図２ 圧縮工程−２（ガソリンの噴射・点火） 吸気弁と排気弁は閉じている。 図３ 膨張工程−１ 吸気弁は、膨張し過ぎて回転の抵抗になる前に開き、排
気弁は閉じている。（図３に示される吸気弁は、ピスト
ンが４分の３程、下降した時点で開くと仮定した図であ
り、開いた直後の図でもある。） 図４ 膨張工程−２ 吸気弁は、下死点で閉じ、排気弁も閉じている。であ
る。（図１から図４に示される弁のバルブ・タイミング
は、エンジンの目的、回転数、回転数の上昇時、下降
時、あるいは、圧縮比などに因って違うので、含まれて
いない。）Embodiments will be described with reference to the drawings.
1 to 4, the movement of the valve in the compression process and the expansion process of the cylinder injection gasoline engine in which the expansion process is longer than the compression process in terms of stroke. 1 to FIG. 4. FIG. 1 to FIG. 4 show the compression process of FIG. 1. The intake valve is closed, the exhaust valve is opened at the bottom dead center, and is closed just before the top dead center. (The exhaust valve shown in FIG. 1 is a diagram assuming that the piston is closed when the piston moves up by about half, and is also a diagram immediately before the closing.) FIG. 2 Compression step-2 (gasoline injection / ignition) ) The intake valve and exhaust valve are closed. Fig. 3 Expansion step-1 The intake valve opens before it expands too much to resist rotation, and the exhaust valve closes. (The intake valve shown in FIG. 3 is a view assuming that the piston is opened when the piston is lowered by about three quarters, and is also a view immediately after it is opened.) FIG. It closes at the dead point, and the exhaust valve is also closed. It is. (The valve timings of the valves shown in FIGS. 1 to 4 are not included because they differ depending on the purpose of the engine, the number of revolutions, when the number of revolutions increases, when the number of revolutions decreases, or due to the compression ratio.
【００１０】[0010]
【発明の効果】本発明は、以上説明したように構成され
ているので、以下に記載されるような効果を奏する。Since the present invention is configured as described above, it has the following effects.
【００１１】筒内噴射ガソリンエンジンの、本当に圧縮
する工程よりも膨張する工程の方を、ストロークで言う
ならば長くとる方法において、圧縮工程の時、排気弁
を、下死点で開き、上死点の少し手前の間で閉じる事に
因り、 圧縮比＜膨張比 の工程が行え、従来の、筒内噴射ガソリンエンジンより
も、同じ量の燃料を消費するにあたって、爆発に因って
出たエネルギー（パワー、トルク）を、より多く、ピス
トン、そして、クランク・シャフトへと伝える事ができ
る。In a method of taking a stroke of a cylinder injection gasoline engine, which expands more than a compression actually, in terms of stroke, the exhaust valve is opened at the bottom dead center during the compression step and the top dead center is reached. Due to the fact that it closes just before the point, the process of compression ratio <expansion ratio can be performed, and the energy generated by the explosion when consuming the same amount of fuel as the conventional direct injection gasoline engine More (power, torque) can be transmitted to the piston and crank shaft.
【００１２】また、圧縮工程の時、排気弁を開け過ぎた
時の対策として、膨張工程の時、膨張し過ぎて回転の抵
抗になる前に、吸気弁を開き、下死点で閉じる事に因
り、回転する時の抵抗も少なくなり、さらに 圧縮比＜膨張比 の比率の割り合いが高くなり、また、排気ガスを空気に
因って、薄める事ができるので、排気の時に排気ガスが
シリンダーの中に残る割り合いが少なくなり、それに因
って、次の爆発で、完全燃焼が近づく。As a countermeasure against excessive opening of the exhaust valve during the compression process, the intake valve is opened and closed at the bottom dead center during the expansion process before it expands too much and becomes a resistance to rotation. As a result, the resistance when rotating also decreases, and the ratio of compression ratio <expansion ratio increases, and the exhaust gas can be diluted due to air, so the exhaust gas can be used when it is discharged. The proportion remaining inside is reduced, and as a result, complete combustion approaches at the next explosion.
【図面の簡単な説明】[Brief description of drawings]
【図１】筒内噴射ガソリンエンジンの工程の実施例を示
す、縦断面図である。（圧縮工程−１）FIG. 1 is a vertical sectional view showing an embodiment of a process of a cylinder injection gasoline engine. (Compression process-1)
【図２】筒内噴射ガソリンエンジンの工程の実施例を示
す、縦断面図である。（圧縮工程−２）FIG. 2 is a vertical cross-sectional view showing an example of a process of a cylinder injection gasoline engine. (Compression step-2)
【図３】筒内噴射ガソリンエンジンの工程の実施例を示
す、縦断面図である。（膨張工程−１）FIG. 3 is a vertical sectional view showing an embodiment of a process of a cylinder injection gasoline engine. (Expansion step-1)
【図４】筒内噴射ガソリンエンジンの工程の実施例を示
す、縦断面図である。（膨張工程−２）FIG. 4 is a vertical cross-sectional view showing an example of a process of a cylinder injection gasoline engine. (Expansion step-2)
【符号の説明】 １ 吸気弁（吸気工程の時、上死点で開き、下死点で閉
じる弁と、膨張工程の時、膨張し過ぎて回転の抵抗にな
る前に開き、下死点で閉じる弁、を兼ねた弁） ２ 排気弁（排気工程の時、下死点で開き、上死点で閉
じる弁と、圧縮工程の時、下死点で開き、上死点の少し
手前の間で閉じる弁、を兼ねた弁） ３ プラグ ４ 燃料噴射器 ５ ピストン ６ 吸気管 ７ 排気管[Explanation of Codes] 1 Intake valve (a valve that opens at the top dead center during the intake stroke and closes at the bottom dead center) and an intake valve that opens before it expands too much and becomes rotational resistance during the expansion stroke 2) Exhaust valve (opens at bottom dead center during the exhaust process and closes at top dead center during the exhaust process, and opens at bottom dead center during the compression process, just before top dead center) Valve that doubles as a valve that doubles as a valve) 3 Plug 4 Fuel injector 5 Piston 6 Intake pipe 7 Exhaust pipe
【手続補正２】[Procedure amendment 2]
【補正対象書類名】図面[Document name to be amended] Drawing
【補正対象項目名】全図[Correction target item name] All figures
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【図１】 FIG.
【図２】 [Fig. 2]
【図３】 [Figure 3]
【図４】 FIG. 4
Claims (2)
き、上死点の少し手前の間で閉じる、筒内噴射ガソリン
エンジン。（図１から図４）1. A cylinder injection gasoline engine in which an exhaust valve is opened at bottom dead center and closed just before top dead center during a compression process. (Figs. 1 to 4)
時に開け過ぎた時の対策として、膨張工程の時、膨張し
過ぎて回転の抵抗になる前に、吸気弁を開き、下死点で
閉じる、筒内噴射ガソリンエンジン。（図１から図４）2. The exhaust valve according to claim 1, when the exhaust valve is opened too much during the compression process, the intake valve is opened and the bottom deadening occurs during the expansion process before it expands too much and becomes resistance to rotation. In-cylinder injection gasoline engine, closed at points. (Figs. 1 to 4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8097261A JPH09222020A (en) | 1996-02-18 | 1996-02-18 | Method for making expanding stroke of in-cylinder injection engine longer than really compressing stroke in terms of stroke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8097261A JPH09222020A (en) | 1996-02-18 | 1996-02-18 | Method for making expanding stroke of in-cylinder injection engine longer than really compressing stroke in terms of stroke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09222020A true JPH09222020A (en) | 1997-08-26 |
Family
ID=14187609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8097261A Pending JPH09222020A (en) | 1996-02-18 | 1996-02-18 | Method for making expanding stroke of in-cylinder injection engine longer than really compressing stroke in terms of stroke |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09222020A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11132068A (en) * | 1997-10-25 | 1999-05-18 | Osamu Nakada | Method for taking real expansion stroke during expansion longer than compression stroke during compression as stroke in cylindrical injection four-cycle gasoline engine, and measures when taking it excessively long |
-
1996
- 1996-02-18 JP JP8097261A patent/JPH09222020A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11132068A (en) * | 1997-10-25 | 1999-05-18 | Osamu Nakada | Method for taking real expansion stroke during expansion longer than compression stroke during compression as stroke in cylindrical injection four-cycle gasoline engine, and measures when taking it excessively long |
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