[go: up one dir, main page]

JPS61178518A - 4-cycle engine to also carry out suction through exhaust valve - Google Patents

4-cycle engine to also carry out suction through exhaust valve

Info

Publication number
JPS61178518A
JPS61178518A JP60018993A JP1899385A JPS61178518A JP S61178518 A JPS61178518 A JP S61178518A JP 60018993 A JP60018993 A JP 60018993A JP 1899385 A JP1899385 A JP 1899385A JP S61178518 A JPS61178518 A JP S61178518A
Authority
JP
Japan
Prior art keywords
exhaust
valve
intake
switching
exhaust 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
Application number
JP60018993A
Other languages
Japanese (ja)
Inventor
Yuji Noguchi
雄司 野口
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP60018993A priority Critical patent/JPS61178518A/en
Publication of JPS61178518A publication Critical patent/JPS61178518A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/44—Multiple-valve gear or arrangements, not provided for in preceding subgroups, e.g. with lift and different valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/28—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of coaxial valves; characterised by the provision of valves co-operating with both intake and exhaust ports
    • 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
    • F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/002—Integrally formed cylinders and cylinder heads
    • 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
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
    • 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
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/20—SOHC [Single overhead camshaft]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4214—Shape or arrangement of intake or exhaust channels in cylinder heads specially adapted for four or more valves per cylinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F2001/244—Arrangement of valve stems in cylinder heads
    • F02F2001/245—Arrangement of valve stems in cylinder heads the valve stems being orientated at an angle with the cylinder axis
    • 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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

PURPOSE:To improve suction efficiency by also carrying out suction through an exhaust valve which has been used for only exhausting. CONSTITUTION:In an intake stroke, a switching valve 2 is pressed down to shut an exhaust pipe 5 in the lower part of a switching chamber 1. In this case, an exhaust valve 6 is also pressed down, and suction is carried out through the exhaust valve 6 as well as an intake valve 7. In a compression-explosion stroke, the intake and exhaust valves are closed, and the switching valve 2 has already returned to the upper part of the switching chamber 1. In an exhaust stroke, the switching valve 2 shuts an intake pipe 4 to prevent exhaust gas from entering the intake pipe 4, thus exhaust is carried out through the exhaust valve 6.

Description

【発明の詳細な説明】 この発明は、従来、排気のためにしか用いられていなか
フだ排気弁からも吸入を行う４サイクルエンジンに関す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a four-stroke engine that also takes in air through a rear exhaust valve, which was conventionally used only for exhaust.

従来の４サイクルエンジンは、高性能化を図るにあたり
吸気効率を向上させるため、吸気及び排気弁の大径化、
多弁化を推し進めてきた。In order to improve the performance of conventional 4-cycle engines, in order to improve intake efficiency, the diameter of the intake and exhaust valves has been increased,
We have been pushing for greater eloquence.

しかし、ボアが決１．ている以上、大径化にも限界があ
り、う弁化においても　たとえ１気筒４９９式であろう
と、吸気用に供されるのは、その半分の２弁のみであっ
た。However, Boa decided 1. As long as the diameter is large, there is a limit to increasing the diameter, and even if the valve was changed to a single cylinder Type 499, only half of the two valves would be used for intake.

不発８！４は、こうした閉界を打ち破り、排気用の排気
弁からも吸入を行うことにより、−挙に約２倍の吸入面
積を得て、より一層の高性能化を速成するために発明さ
れたものである。The Misfire 8!4 was invented to break through this closed world and also take in air from the exhaust valve, thereby increasing the suction area by about twice as much and achieving even higher performance. It is what was done.

これを図面について説明すると、 （イ）排気弁・（６）付近に切換室（１）を設け、その
土部に吸気管（４）を接続する。To explain this with reference to the drawings, (a) A switching chamber (1) is provided near the exhaust valve (6), and an intake pipe (4) is connected to the soil part of the switching chamber (1).

（ロ）切換室（１）下部に排気管（５）を接続する。(b) Connect the exhaust pipe (5) to the lower part of the switching chamber (1).

（ハ）切換室（１ン内に、カム（８′月こより駆動され
、切換室（１）内を上下する切換弁（２）を設ける。(c) A switching valve (2) is provided in the switching chamber (1), which is driven by a cam (8') and moves up and down within the switching chamber (1).

（ニ）切換室（１）より排気弁孔に、吸排気管（３）を
接続する。(d) Connect the intake and exhaust pipe (3) from the switching chamber (1) to the exhaust valve hole.

（ホ）吸入行程時にも排気弁（６）が開くようカム（８
）をセットする。(e) Cam (8) so that the exhaust valve (6) opens even during the suction stroke.
).

本発明は、以上の横絞からなっている。The present invention consists of the above-described horizontal aperture.

吸入、ｆｆ！宿、爆発、排気の４行程からその作Φカ原
理を説明すると、 （吸入行程） ８弁の作Ｉｆ］杖態は、第２図の様に、切換弁（２）は
、カム（８′）により押し下げられ排気弁（６）への吸
気回路を構成すると同時に、切換室（１）下部て排気管
（５）をふさぎ、排気ガスの逆流や吸入気の咲きぬけを
防ぐ。この時、排気弁（６）もカム（８）により押し下
げられ吸気弁（７）と共に排気弁（６）からも吸入を行
う。Inhalation, ff! To explain the principle of its operation from the four strokes of intake, explosion, and exhaust, (intake stroke) the operation of the eight valves is as shown in Figure 2, the switching valve (2) is ) to form an intake circuit to the exhaust valve (6), and at the same time block the exhaust pipe (5) with the lower part of the switching chamber (1) to prevent backflow of exhaust gas and leakage of intake air. At this time, the exhaust valve (6) is also pushed down by the cam (8), and suction is performed from the exhaust valve (6) as well as the intake valve (7).

排気イテ程より回続して見ると、排気弁（６）は、徘貝
行程時より開きフ放しの伏態であり、吸排気の切換は、
切換弁（２）により行われる。Looking at the exhaust valve (6) from the exhaust stroke, the exhaust valve (6) is in the open position from the wandering stroke, and the intake/exhaust switching is as follows.
This is done by a switching valve (2).

（圧縮、爆発行程） 第３図の様に従来どおり吸排気弁は閉 じ、切換弁（２）は、カム（８′）のセットにより切換
室（１）上部に戻フている。(Compression and Explosion Stroke) As shown in FIG. 3, the intake and exhaust valves are closed as before, and the switching valve (2) is returned to the upper part of the switching chamber (1) by the setting of the cam (8').

（排気行程） 第４図の様に切換弁（２）は、切換室（１）上部で吸気
管（４）をふさぎ、吸気管（４）への排気ガスの侵入を
防ぐと同時に、排気回路を慣成し、排気弁（６）からの
排気が行われる。(Exhaust stroke) As shown in Figure 4, the switching valve (2) closes the intake pipe (4) at the top of the switching chamber (1), prevents exhaust gas from entering the intake pipe (4), and at the same time is established, and exhaust is performed from the exhaust valve (6).

本発明により （ａ）吸気弁径が、従来エンジンの約２倍（％弁エンジ
ンにあ）ては、はぼ、ボア全面）となるため大巾な吸気
効率の向上が得られ高性炬化が達成できる。With the present invention, (a) the diameter of the intake valve is approximately twice that of a conventional engine (in case of a % valve engine, the diameter of the intake valve is approximately twice that of a conventional engine), which means that the diameter of the intake valve is approximately twice that of a conventional engine (in the case of a % valve engine, the diameter of the intake valve is approximately twice that of a conventional engine). can.

（ｂ）排気弁からも吸入するため、強力なスワール効果
が得られ急速燃焼による信中速性能と燃嘗の向上が可断
である。(b) Since the fuel is also inhaled through the exhaust valve, a strong swirl effect can be obtained, and rapid combustion can improve medium-speed performance and fuel consumption.

（Ｃ）吸入気により、排気弁系も冷却されるためシリン
グ−頭部温湿の均一化が得られ安定した性矩を発揮する
。(C) Since the exhaust valve system is also cooled by the intake air, the temperature and humidity of the Schilling head are equalized and stable performance is achieved.

（ｄ）切換弁は、排気行程において、切換室上部にそワ
くり隔れる形となるため排気抵抗を最小におさえられる
と共に、直接、燃焼にさらされる事がない事から大径、
軽量に設計できる。(d) During the exhaust stroke, the switching valve is bent away from the top of the switching chamber, which minimizes exhaust resistance, and because it is not directly exposed to combustion, it has a large diameter.
Can be designed to be lightweight.

等のすぐれた効果を発生する。It produces excellent effects such as

また、本発明は、切換室と切換弁の追加、カムのセツテ
ィング変更等、シリング−頭部の簡単な小改造で製作で
きるためコストも安くできる。Furthermore, the present invention can be manufactured by simple minor modification of the sling head, such as adding a switching chamber and switching valve, changing the cam setting, etc., so that the cost can be reduced.

なお、本発明は、構造が簡単である事 からエンジンの冷却方式や気筒数、使用燃料や弁駆動方
式等を問わず、１気筒あたり３弁以上のエンジンにおい
ても応用可断である。Since the present invention has a simple structure, it can be applied to engines with three or more valves per cylinder, regardless of the engine cooling system, number of cylinders, fuel used, valve drive system, etc.

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

第１図は、本発明の正面断面図。 第２図は、本発明の詳細な説明図。 第３図は、本発明の圧縮、爆発行程説明図。 第４図は、本発明の詳細な説明図。 第５図は、本発明を透視した斜視図。（徘見イテ程。）
以上、何れも冷却、漬浸、点火系収等の不要部は省略。 （１）は、吸排気切換室 （２）は、吸排気切換弁 （３）は、吸排気管 （４）は、吸気管 （５）は、排気管 （６）は、排気弁 （７）は、吸気弁 （８）は、カム （９）は、ロッカーアーム （１０）は、シリングー （１１）は、ピストンFIG. 1 is a front sectional view of the present invention. FIG. 2 is a detailed explanatory diagram of the present invention. FIG. 3 is an explanatory diagram of the compression and explosion strokes of the present invention. FIG. 4 is a detailed explanatory diagram of the present invention. FIG. 5 is a perspective view of the present invention. (Wandering itte degree.)
In all of the above, unnecessary parts such as cooling, soaking, and ignition system installation are omitted. (1) is the intake/exhaust switching chamber (2), the intake/exhaust switching valve (3), the intake/exhaust pipe (4), the intake pipe (5), the exhaust pipe (6), and the exhaust valve (7). , intake valve (8), cam (9), rocker arm (10), cylinder (11), piston

Claims (1)

【特許請求の範囲】 （イ）吸排気切換室（１）（以下「切換室」という。）
を設け、その上部に吸気管（４）を接続する。 （ロ）切換室（１）下部には、排気管（５）を接続する
。 （ハ）切換室（１）内に吸排気切換弁（２）（以下「切
換弁」という。）を設ける。 （ニ）切換室（１）より排気弁孔に吸排気管（３）を接
続する。 （ホ）吸入行程時にも排気弁（６）が、開くようカム（
８）をセットする。 以上の如く構成された４サイクルエンジン。[Claims] (a) Intake/exhaust switching chamber (1) (hereinafter referred to as "switching chamber")
is provided, and the intake pipe (4) is connected to the upper part thereof. (b) Connect the exhaust pipe (5) to the lower part of the switching chamber (1). (c) An intake/exhaust switching valve (2) (hereinafter referred to as "switching valve") is provided in the switching chamber (1). (d) Connect the intake and exhaust pipe (3) from the switching chamber (1) to the exhaust valve hole. (e) The cam (
8) Set. A four-stroke engine configured as described above.
JP60018993A 1985-02-03 1985-02-03 4-cycle engine to also carry out suction through exhaust valve Pending JPS61178518A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60018993A JPS61178518A (en) 1985-02-03 1985-02-03 4-cycle engine to also carry out suction through exhaust valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60018993A JPS61178518A (en) 1985-02-03 1985-02-03 4-cycle engine to also carry out suction through exhaust valve

Publications (1)

Publication Number Publication Date
JPS61178518A true JPS61178518A (en) 1986-08-11

Family

ID=11987089

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60018993A Pending JPS61178518A (en) 1985-02-03 1985-02-03 4-cycle engine to also carry out suction through exhaust valve

Country Status (1)

Country Link
JP (1) JPS61178518A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0213138U (en) * 1988-06-30 1990-01-26
FR2910540A1 (en) * 2006-12-21 2008-06-27 Peugeot Citroen Automobiles Sa Internal combustion engine for motor vehicle, has derivation unit connecting passage to intake pipe, exhaust pipe and both intake and exhaust pipes when unit is in intake, exhaust and intermediate positions, respectively
CN105370337A (en) * 2015-11-17 2016-03-02 大连理工大学 Series-connection valve speed control system of spark ignition type internal combustion engine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0213138U (en) * 1988-06-30 1990-01-26
FR2910540A1 (en) * 2006-12-21 2008-06-27 Peugeot Citroen Automobiles Sa Internal combustion engine for motor vehicle, has derivation unit connecting passage to intake pipe, exhaust pipe and both intake and exhaust pipes when unit is in intake, exhaust and intermediate positions, respectively
CN105370337A (en) * 2015-11-17 2016-03-02 大连理工大学 Series-connection valve speed control system of spark ignition type internal combustion engine

Similar Documents

Publication Publication Date Title
JPH07208177A (en) Cylinder fuel injection type multiple cylinder engine
JPS61178518A (en) 4-cycle engine to also carry out suction through exhaust valve
JPS6473121A (en) Intake device for v-row internal combustion engine
JPH05280359A (en) Air charge device for 2-cycle engine
JPH0533650A (en) 2-cycle internal combustion engine
JPS63253114A (en) Exhaust system for two-cycle engine
JPH0441223Y2 (en)
GB982334A (en) Four-stroke reciprocating-piston internal combustion engine
JPS63134816A (en) Six-cycle engine and air cooling engine
JPS58178822A (en) Two cycle internal-combustion engine
JP3142354B2 (en) 2 cycle engine
JPS6220620A (en) 2 cycle engine
JPS587057Y2 (en) 2-stroke internal combustion engine
JPS6466422A (en) Vertical type central purpose internal combustion engine
JPS60222521A (en) Scavenging port of two-cycle engine
JPH0791313A (en) Cylinder head of flat head combustion chamber type two cycle engine
ATE289003T1 (en) IMPROVED TWO-STROKE INTERNAL COMBUSTION ENGINE
JPH09166025A (en) Internal combustion engine
JPS63208618A (en) Forcedly air-cooled overhead-valve engine
RU2001127737A (en) Two-stroke internal combustion engine, both with internal and external mixture formation, with a cut-off, loop gas exchange scheme
JPS61229923A (en) 2-cycle spark ignition engine
JPS635113A (en) Exhaust system for internal combustion engine
JPH05118222A (en) Construction of combustion chamber of engine
JPS5587820A (en) Two-cycle internal combustion engine
JPH04127839U (en) 2-stroke internal combustion engine