JPS6045727A - Multicylinder engine - Google Patents

Multicylinder engine

Info

Publication number
JPS6045727A
JPS6045727A JP15397383A JP15397383A JPS6045727A JP S6045727 A JPS6045727 A JP S6045727A JP 15397383 A JP15397383 A JP 15397383A JP 15397383 A JP15397383 A JP 15397383A JP S6045727 A JPS6045727 A JP S6045727A
Authority
JP
Japan
Prior art keywords
crankshafts
cylinder
cylinders
mixture
engine
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
JP15397383A
Other languages
Japanese (ja)
Inventor
Shinji Shiyudo
首藤 伸二
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.)
Kawasaki Heavy Industries Ltd
Kawasaki Motors Ltd
Original Assignee
Kawasaki Heavy Industries Ltd
Kawasaki Jukogyo KK
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 Kawasaki Heavy Industries Ltd, Kawasaki Jukogyo KK filed Critical Kawasaki Heavy Industries Ltd
Priority to JP15397383A priority Critical patent/JPS6045727A/en
Publication of JPS6045727A publication Critical patent/JPS6045727A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00Other engines
    • F02B75/32Engines characterised by connections between pistons and main shafts and not specific to preceding main groups
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B73/00Combinations of two or more engines, not otherwise provided for

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)

Abstract

PURPOSE:To shorten the distance between crankshafts and enable the sure transmission of motive power through a compact size and low weight, by forming the webs of the crankshafts with gears, and enagaging the gears with each other to transmit the motive power. CONSTITUTION:A fresh mixture supplied from an intake passage is compressed in a crankcase 24 as crankshafts 6, 11 rotate and pistons 5, 5 move down. At the same time, combustion gas is discharged from exhaust passages 26, 27. The compressed mixture is supplied into combustion chambers in a cylinder block 3. Since the same crankcase 24 is provided for both cylinders 1a, 1b, the mixture is charged into both the cylinders uniformly under equal pressure. As the pistons 5 move up, the mixture is compressed in the cylinders 1a, 1b for explosive combustion. Such strokes are repeated. According to this constitution, the distance between the crankshafts 6, 11 is shortened, the engine is made compact, and a separate system for transmitting motive power between the crankshafts is not needed. Therefore, the weight and the fuel consumption are reduced.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、クランク軸t2軸平行に配置して構成される
エンジンに関するもので、軸間距離の短いコンパクトな
複数気筒のエンジンに係るものである。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an engine configured with two crankshafts arranged parallel to each other, and relates to a compact multi-cylinder engine with a short distance between the shafts. be.

(従来技術およびその問題点) 第1図に従来の2気筒2サイクルエンジンの断面を示す
。同図は、一方の気筒の縦断面から、そのクランク軸、
他方の気筒のクランク軸およびトランスミフションの入
力軸を結ぶ線での断面図を示すものである。同図におい
て、1は2気筒のうちの一万〇気筒のエンジンで、シリ
ンダ3円ド2、シリンダ3およびクランクケース4より
構成され、シリンダ3円にはピストン5が嵌装されてい
る。6はクランク軸で、一端にダイナモアが、他端に動
力伝達用歯車8が、該クランク軸6に固着されており、
上記ピストン5とはそれぞれピストンピンおよびクラン
クビンを介しコンロンド9にて連結されている。10は
掃気通路である。11は他方Φ気筒のエンジンのクラン
ク軸で、該クランク軸11の端部に動力伝達用歯車12
および13がスゲライン嵌合され、歯車12が上記歯車
8と噛合し、両気筒の出力を合算して、他方の歯車13
により、多板クラッチ14を介して変速装置15の入力
軸16に、動力を伝達している。
(Prior art and its problems) FIG. 1 shows a cross section of a conventional two-cylinder two-stroke engine. The figure shows the crankshaft and
FIG. 3 is a cross-sectional view taken along a line connecting the crankshaft of the other cylinder and the input shaft of the transmission. In the figure, reference numeral 1 denotes a 10,000-cylinder engine out of two cylinders, which is composed of a cylinder 3, a cylinder 3, and a crankcase 4, and a piston 5 is fitted in the cylinder 3. 6 is a crankshaft, a dynamore is fixed to one end, and a power transmission gear 8 is fixed to the other end,
The piston 5 is connected to the piston 5 by a connecting rod 9 via a piston pin and a crank pin, respectively. 10 is a scavenging passage. 11 is the crankshaft of the other Φ cylinder engine, and a power transmission gear 12 is attached to the end of the crankshaft 11.
and 13 are line-fitted, the gear 12 meshes with the gear 8, the outputs of both cylinders are combined, and the other gear 13
As a result, power is transmitted to the input shaft 16 of the transmission 15 via the multi-disc clutch 14.

上記のとおり、各気筒間の動力吹出については、それぞ
れのクランク軸6..11にスプライン嵌合された歯車
8,12を互いに噛合させることにより、−個所に集合
させ、クランチ14を介し変速装置15の入力軸16へ
伝4させるものである。
As mentioned above, the power output between each cylinder is determined by each crankshaft 6. .. By meshing the gears 8 and 12 spline-fitted with each other, the gears 8 and 12 are brought together at the - point, and the transmission is transmitted to the input shaft 16 of the transmission 15 via the clutch 14.

そのため、動力取出のための大きな歯車8゜12を必要
とし、従って必然的にこの種の多気筒エンジンの大きさ
は気筒配列方向に大きくなる。更に、各気筒毎にシリン
ダ3.クランクケース4等が形成されているため、エン
ジン組立の複雑さはいう1でもなく、エンジンM量その
ものも非常に重く、燃料消費量も多い。
Therefore, a large gear 8.12 is required for power extraction, and the size of this type of multi-cylinder engine inevitably increases in the direction of cylinder arrangement. Furthermore, cylinder 3. Since the crankcase 4 and the like are formed, the engine assembly is not only complicated, but also the engine M itself is very heavy and consumes a lot of fuel.

(発明の目的) 本発明は、上記の種々の欠点を解消すべくなされたもの
で、クランク軸間距離を短くシ、コンパクトで軽量なし
かも動力伝達を確実に行うことができる多気筒のエンジ
ンを提供することを目的とするものである。
(Object of the Invention) The present invention has been made in order to eliminate the various drawbacks mentioned above, and provides a multi-cylinder engine that has a short distance between crankshafts, is compact, lightweight, and is capable of reliably transmitting power. The purpose is to provide

(発明の構成) 各クランク軸の一部であるクランクウェブに動力伝達用
のギヤを削設し、互いのギヤを噛合させることによρ、
動力を伝達するようにしたもの。
(Structure of the invention) By cutting gears for power transmission into the crank web, which is a part of each crankshaft, and meshing the gears with each other, ρ,
Something designed to transmit power.

(実施例) 第2図および第3図に本発明の一実施例である2気筒の
2サイクルエンジンを示す。第2図は、第1図に対応す
る図で縦断面図、第3図は第2図中lll−lff線に
おける断面図である。なお第2図は第3図中■−■線に
おける断面図である。
(Embodiment) FIGS. 2 and 3 show a two-cylinder two-stroke engine which is an embodiment of the present invention. FIG. 2 is a longitudinal sectional view corresponding to FIG. 1, and FIG. 3 is a sectional view taken along the line lll-lff in FIG. Note that FIG. 2 is a cross-sectional view taken along the line ■-■ in FIG. 3.

第1図と同一符号は同一物を示すのでその詳細な説明は
省略する。第2図および第3図において、2oは第1気
筒1a(第3図参照)のクランクウェブで、クランク軸
6の一部を構成している。21はクランクウェブ2oに
削設されたギヤ、22は第2気筒1b(第3図参照)の
クランクウェブで、クランク軸11の一部を構成してい
る。2,3はクランクウェブ22に削設されたギヤで上
記第1気筒1aのギヤ21と噛合している。24はクラ
ンクケースで、第1気筒1aおよび第2気筒1bの両ク
ランクウェブ20.22を覆い包むように一体的に形成
されている。25は吸気通路、26は第1気筒1aの排
気通路、27は第2気筒の排気通路、28は主掃気通路
である。29は副掃気通路で1両気筒1a、ibの副掃
気通路を兼用し1ζものである。
Since the same reference numerals as in FIG. 1 indicate the same parts, detailed explanation thereof will be omitted. In FIGS. 2 and 3, 2o is a crank web of the first cylinder 1a (see FIG. 3), which constitutes a part of the crankshaft 6. In FIG. 21 is a gear cut into the crank web 2o, and 22 is a crank web of the second cylinder 1b (see FIG. 3), which constitutes a part of the crankshaft 11. Gears 2 and 3 are cut into the crank web 22 and mesh with the gear 21 of the first cylinder 1a. Reference numeral 24 denotes a crankcase, which is integrally formed so as to cover both the crank webs 20, 22 of the first cylinder 1a and the second cylinder 1b. 25 is an intake passage, 26 is an exhaust passage for the first cylinder 1a, 27 is an exhaust passage for the second cylinder, and 28 is a main scavenging passage. Reference numeral 29 denotes an auxiliary scavenging passage which also serves as an auxiliary scavenging passage for both cylinders 1a and ib, and has a length of 1ζ.

(作 用) 本発明の一実施例である2気筒の2tイクルエンジンは
上記の如く構成されるもので、吸気通路25より供給さ
れた新気の混合気は通常の2サイクルエンジンと同じく
第3図中矢印の如くクランク軸6,11が回動しピスト
ン5,5の下降にともない、クランクケース24円で圧
縮される。と同時に燃焼したガスは排気通路26゜27
より排出され、上記圧縮された混合気が主掃気通路28
および副掃気通路29を経て、シリンダ3の燃焼室内へ
供給される。
(Function) The two-cylinder 2t cycle engine which is an embodiment of the present invention is constructed as described above, and the fresh air mixture supplied from the intake passage 25 is fed into the third cycle engine as in a normal two-stroke engine. As the crankshafts 6 and 11 rotate as shown by arrows in the figure and the pistons 5 and 5 descend, the crankcase is compressed by 24 yen. At the same time, the gas that was combusted goes to the exhaust passage 26°27
The compressed air-fuel mixture is discharged from the main scavenging passage 28.
It is supplied into the combustion chamber of the cylinder 3 through the sub-scavenging passage 29.

この場合、内気筒1a、lbのクランクケースが一体シ
;形成されているため、内気筒la。
In this case, since the crankcases of the inner cylinders 1a and 1b are integrally formed, the inner cylinder 1a.

1bへの供給が同圧力にて行われ、均一に充填される。1b is supplied at the same pressure and filled uniformly.

次いで、ピストン5が上昇し、圧縮され、爆発燃焼され
、上記の行程を順次繰り返す。
Next, the piston 5 moves up, is compressed, explodes and burns, and repeats the above steps in sequence.

これらの各行程において、クランク軸6.11に装着さ
れたクランクウェブ20.22のギヤ21.23が互い
に噛合されてbる罠めクランク軸6,11の回転方向は
逆であり、第1気筒1aと第2気筒1bは常に同じ行程
を経る。
In each of these strokes, the gears 21.23 of the crank web 20.22 mounted on the crankshaft 6.11 are engaged with each other, and the rotational directions of the trapping crankshafts 6, 11 are opposite, and the first cylinder 1a and the second cylinder 1b always undergo the same stroke.

(発明の効果) 以上のとおりであり、本発明は、平行に配置した2本の
クランク軸の各クランク軸の一部であるクランクウェブ
にギヤを削設し、これらを互いに噛合させるようにした
ので、クランク軸間の距離を著しく縮めることができ、
エンジンそのものをコンパクトにできるようになった。
(Effects of the Invention) As described above, the present invention has two crankshafts arranged in parallel, in which gears are cut into the crank webs that are a part of each crankshaft, and the gears are made to mesh with each other. Therefore, the distance between the crankshafts can be significantly reduced,
The engine itself can now be made more compact.

それに従来の如く別途に各クランク軸間の動力伝達系を
必要としないので、非常に軽量化でき、燃料消費量を著
しく低減できるようになったO また、内気筒のクランクケースを一体に形成しているの
で、内気筒への均一な混合気供給を行うことが可能であ
p、バランスのよい出方全得ることができる。
In addition, since there is no need for a separate power transmission system between each crankshaft as in the past, the weight can be significantly reduced, and fuel consumption can be significantly reduced.In addition, the crankcase of the inner cylinder is formed as one piece. Therefore, it is possible to uniformly supply the air-fuel mixture to the inner cylinders, and a well-balanced mixture can be obtained.

部片持ち構造に比べて、安定し1c噛合いを得ることが
でき、騒音、振動の発生金抑えることができる。特にバ
ランサー金必要とせず、安定した運転が可能となった。
Compared to a cantilevered structure, it is possible to obtain stable 1C meshing, and the generation of noise and vibration can be suppressed. Stable operation is now possible without the need for a balancer.

なお前述の実施例は2気筒の2サイタルエンジンである
が、4気筒、6気筒、8気筒等の、′g数の気筒数であ
れば、いずれのものにも適用できるものであp、’f7
m4サイクルエンジンにも適用できるものである。
Although the above-mentioned embodiment is a two-cylinder two-citer engine, it can be applied to any type of engine, such as four cylinders, six cylinders, eight cylinders, etc., as long as the number of cylinders is equal to the number of g.p,' f7
It can also be applied to m4 cycle engines.

ttc、クランクウェブに削設するギヤは、−個のクラ
ンクウェブにのみ削設したものを示したが、両方のクラ
ンクウェブに削設してもよい0
ttc, the gear cut into the crank web is shown as being cut into only one crank web, but it may be cut into both crank webs.

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

第1図は従来の2気筒2サイクルエンジンを示す縦断面
図、第2図は本発明の一実施例である2気筒2サイクル
エンジンの縦断面図、第3図は第2図中111−1[線
における断面図である〇1・・・エンジン 1a・・・
第1気筒 1b・・・第2気筒 6,11・・・クラン
ク軸 20゜22・・・クランクウェブ 21,23・
・・ギヤ24・・・クランクグー7 出願人 川崎重工業株式会社 代 理 人 弁理士 高 雄次部 第1図 第2図 ■ 1つ ―
FIG. 1 is a vertical cross-sectional view showing a conventional two-cylinder two-stroke engine, FIG. 2 is a vertical cross-sectional view of a two-cylinder two-stroke engine that is an embodiment of the present invention, and FIG. [Cross-sectional view along the line 〇1...Engine 1a...
1st cylinder 1b... 2nd cylinder 6, 11... Crankshaft 20° 22... Crank web 21, 23...
...Gear 24...Crank goo 7 Applicant Kawasaki Heavy Industries Co., Ltd. Representative Patent attorney Yuji Ko Department Figure 1 Figure 2 ■ One -

Claims (1)

【特許請求の範囲】 クランク軸t2軸平行に配置したエンジンにおいて、夫
々のクランク軸の一部であるクランクウェブに動力伝達
用のギヤ【削設し、互いに噛合させることにより、動カ
ケ伝達するようにしたことt%徴とする多気筒エンジン
[Claims] In an engine arranged parallel to the crankshaft t2, gears for transmitting power are cut in the crank web, which is a part of each crankshaft, and are meshed with each other to transmit power. A multi-cylinder engine with t% characteristics.
JP15397383A 1983-08-23 1983-08-23 Multicylinder engine Pending JPS6045727A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15397383A JPS6045727A (en) 1983-08-23 1983-08-23 Multicylinder engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15397383A JPS6045727A (en) 1983-08-23 1983-08-23 Multicylinder engine

Publications (1)

Publication Number Publication Date
JPS6045727A true JPS6045727A (en) 1985-03-12

Family

ID=15574121

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15397383A Pending JPS6045727A (en) 1983-08-23 1983-08-23 Multicylinder engine

Country Status (1)

Country Link
JP (1) JPS6045727A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012056275A1 (en) * 2010-10-29 2012-05-03 Obrist Engineering Gmbh Machine combination comprising an internal combustion engine and a generator
US9103277B1 (en) 2014-07-03 2015-08-11 Daniel Sexton Gurney Moment-cancelling 4-stroke engine
DE102014215851A1 (en) 2014-08-11 2016-02-11 Bayerische Motoren Werke Aktiengesellschaft Reciprocating internal combustion engine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5920021A (en) * 1982-07-27 1984-02-01 Canon Inc Power supply device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5920021A (en) * 1982-07-27 1984-02-01 Canon Inc Power supply device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012056275A1 (en) * 2010-10-29 2012-05-03 Obrist Engineering Gmbh Machine combination comprising an internal combustion engine and a generator
US9103277B1 (en) 2014-07-03 2015-08-11 Daniel Sexton Gurney Moment-cancelling 4-stroke engine
US9732615B2 (en) 2014-07-03 2017-08-15 Daniel Sexton Gurney Moment-cancelling 4-stroke engine
DE102014215851A1 (en) 2014-08-11 2016-02-11 Bayerische Motoren Werke Aktiengesellschaft Reciprocating internal combustion engine

Similar Documents

Publication Publication Date Title
JPWO2008010490A1 (en) Cycloid reciprocating engine and pump device using this crank mechanism
US8267056B2 (en) Split-cycle internal combustion engine
JP3137283B2 (en) Two-way reciprocating piston engine
EP0040549A1 (en) Engine
JPH0221045A (en) Balancer device for internal combustion engine
EP0158453A2 (en) Multi-cylinder internal combusion engine
US4586881A (en) Machine having integral piston and cylinder wall sections
KR20060109497A (en) Reciprocating engine
JPS6045727A (en) Multicylinder engine
US20100108034A1 (en) Rotary Engine
WO1997001694A1 (en) Multiple crankshaft ic engine
JPS6045717A (en) Multicylinder two-cycle engine
US3421490A (en) Engine construction
KR900700728A (en) An internal combustion engine
US2056056A (en) Engine cylinder
US4616604A (en) Stator-Rotor piston internal combustion engine
US20080017141A1 (en) Air/fuel double pre-mix self-supercharging internal combustion engine with optional freewheeling mechanism
JPS5946359A (en) V-type 2-cycle internal-combustion engine for autobicycle
WO2000036288A2 (en) Pairing of combustion chambers in engines
US636478A (en) Gas-engine.
US20050061269A1 (en) Stotler variable displacement radial rotary piston engine
WO2022269644A1 (en) Output helical shaft of internal combustion engines
JPS6314025Y2 (en)
JPS5946325A (en) Three-cylinder internal-combustion engine
KR20000017802A (en) Dual piston engine