JPS6160990B2 - - Google Patents
Info
- Publication number
- JPS6160990B2 JPS6160990B2 JP54060847A JP6084779A JPS6160990B2 JP S6160990 B2 JPS6160990 B2 JP S6160990B2 JP 54060847 A JP54060847 A JP 54060847A JP 6084779 A JP6084779 A JP 6084779A JP S6160990 B2 JPS6160990 B2 JP S6160990B2
- Authority
- JP
- Japan
- Prior art keywords
- plate
- signal generating
- housing
- drive shaft
- movable plate
- 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.)
- Expired
Links
- 238000002485 combustion reaction Methods 0.000 claims description 6
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
- F02P7/02—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of distributors
- F02P7/021—Mechanical distributors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/05—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using mechanical means
- F02P5/10—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using mechanical means dependent on fluid pressure in engine, e.g. combustion-air pressure
- F02P5/103—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using mechanical means dependent on fluid pressure in engine, e.g. combustion-air pressure dependent on the combustion-air pressure in engine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
- F02P7/06—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of circuit-makers or -breakers, or pick-up devices adapted to sense particular points of the timing cycle
- F02P7/067—Electromagnetic pick-up devices, e.g. providing induced current in a coil
- F02P7/0677—Mechanical arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Description
【発明の詳細な説明】
本発明は、内燃機関用点火装置に適用される点
火信号発生装置に関し、より詳細には高電圧の配
電部を持たないこの種装置の改良構造に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an ignition signal generating device applied to an ignition device for an internal combustion engine, and more particularly to an improved structure of this type of device that does not have a high-voltage power distribution section.
本発明はこれにおいて構造の簡単化、それによ
る装置の小型軽量化を図り、合せて耐久性の向上
および作動の円滑化による精度の向上を図ること
を目的としたものである。 The present invention aims at simplifying the structure, thereby making the device smaller and lighter, and at the same time improving accuracy by improving durability and smoothing the operation.
以下、図に示す実施例につき本発明を説明す
る。 The invention will now be explained with reference to the embodiments shown in the figures.
本発明の第１実施例を示す第１図および第２図
において、大径部１ａおよびこれよりも直径が小
さい小径部１ｂからなる概略２段の筒状をなした
ハウジング１には、内燃機関のカムシヤフト２と
連結された駆動シヤフト３が挿通され、これがハ
ウジング小径部１ｂを挿通する部所では第１の軸
受４により回転自在に支持されている。この駆動
シヤフト３のハウジング大径部１ｂを挿通する部
所には、遠心進角装置５を介して駆動シヤフト３
と連結された進角シヤフト６が係合されている。
遠心進角装置５は周知の通り、駆動シヤフト３、
従つて内燃機関の回転数に応じて、駆動シヤフト
３に対する進角シヤフト６の回転方向位相を進角
させるものである。 In FIGS. 1 and 2 showing a first embodiment of the present invention, a housing 1 having a generally two-stage cylindrical shape consisting of a large diameter portion 1a and a small diameter portion 1b having a smaller diameter includes an internal combustion engine. A drive shaft 3 connected to a camshaft 2 is inserted therethrough, and is rotatably supported by a first bearing 4 at a portion where it passes through the small diameter portion 1b of the housing. The drive shaft 3 is inserted through a centrifugal advance device 5 into a portion of the drive shaft 3 through which the housing large diameter portion 1b is inserted.
An advance shaft 6 connected to the advance angle shaft 6 is engaged.
As is well known, the centrifugal advance device 5 includes the drive shaft 3,
Therefore, the rotational direction phase of the advance shaft 6 relative to the drive shaft 3 is advanced in accordance with the rotational speed of the internal combustion engine.
進角シヤフト６の上端には、後述の点火信号発
生手段に信号を発生させるための信号発生用ロー
タ７が結合されている。ここではロータ７は磁性
体よりなり、その外周には機関の気筒数と同数の
突起（図示せず）が周方向に等間隔で形成されて
いる。 A signal generating rotor 7 is coupled to the upper end of the advance shaft 6 for generating a signal in an ignition signal generating means to be described later. Here, the rotor 7 is made of a magnetic material, and on its outer periphery are formed protrusions (not shown) of the same number as the number of cylinders of the engine at equal intervals in the circumferential direction.
上記ハウジング大径部１ａの上縁開口端には、
ここを蓋するキヤツプの機能をも果す進角用プレ
ート手段１０の固定プレート１１が、３個のビス
１２によつて固定されている。この固定プレート
１１は円板状で、その中心部にはハウジング１の
外部側へ突出するコツプ状の支持部１１ａが形成
されており、この支持部１１ａには、円筒状の第
２の軸受１３が取付けられている。そしてこの軸
受１３の外周には、円筒部１４ａを中心に有する
円板状の可動プレート１４が嵌合され、また軸受
１３の内周には駆動シヤフト３の上端が回転可能
に支持されている。固定プレート１１と可動プレ
ート１４およびロータ７との間にはそれぞれワツ
シヤ１５，１６が介在されている。 At the upper opening end of the housing large diameter portion 1a,
A fixing plate 11 of the advance angle plate means 10, which also functions as a cap, is fixed by three screws 12. This fixing plate 11 has a disc shape, and a support part 11a in the shape of a tip that protrudes to the outside of the housing 1 is formed in the center thereof. is installed. A disk-shaped movable plate 14 having a cylindrical portion 14a at the center is fitted onto the outer periphery of the bearing 13, and the upper end of the drive shaft 3 is rotatably supported on the inner periphery of the bearing 13. Washers 15 and 16 are interposed between the fixed plate 11, the movable plate 14, and the rotor 7, respectively.
上記進角用プレート手段１０の可動プレート１
４の下面には、点火信号発生手段２０が取付けら
れている。この手段２０は、周知の通り、これに
ロータ７の突起部が対向し合う毎に点火信号を発
生するものである。なお、点火信号発生手段２０
としては、電磁式、光電式、発振式等の公知のも
のがいずれも使用可能である（いずれを使用する
かによつてロータ７もそれに適合するものが使用
されるのは勿論である）。 Movable plate 1 of the advance angle plate means 10
An ignition signal generating means 20 is attached to the lower surface of 4. As is well known, this means 20 generates an ignition signal every time the protrusion of the rotor 7 faces the means 20. Note that the ignition signal generating means 20
Any known type, such as an electromagnetic type, a photoelectric type, or an oscillation type, can be used.
次に、ハウジング大径部１ａの上端部側面に
は、進角手段３０が取付けられている。この進角
手段３０は機関の運転条件、特に吸気負圧に応動
するもので、吸気負圧に応じて変位されるロツド
３１を有している。ロツド３１は進角用プレート
手段１０の可動プレート１４に設けられたピン１
７と連結されており、吸気負圧に応じて可動プレ
ート１４を回動させ、従つて点火信号発生手段２
０をロータ７に対して回動させる。 Next, an advance angle means 30 is attached to the side surface of the upper end of the large diameter portion 1a of the housing. The advance means 30 responds to the operating conditions of the engine, particularly to the intake negative pressure, and includes a rod 31 that is displaced in accordance with the intake negative pressure. The rod 31 is a pin 1 provided on the movable plate 14 of the advancing plate means 10.
7, which rotates the movable plate 14 in accordance with the intake negative pressure, thus causing the ignition signal generating means 2 to rotate.
0 relative to the rotor 7.
以上の如き構成の点火信号発生装置では、遠心
進角装置５の作動によつて機関の回転に対する信
号発生用ロータ７の回転位相が、機関回転数に応
じて変えられる。また進角手段３０の作動によつ
て点火信号発生手段２０の位置が、機関の吸気負
圧に応じて変えられる。これらによつて、点火信
号発生手段２０への点火信号発生時期すなわち機
関の点火時期が変えられるのは明らかであり、従
つて、従来周知のものと同一の点火時期制御が達
成される。 In the ignition signal generating device configured as described above, the rotational phase of the signal generating rotor 7 relative to the rotation of the engine is changed in accordance with the engine rotation speed by the operation of the centrifugal advance device 5. Further, by operating the advance angle means 30, the position of the ignition signal generating means 20 is changed in accordance with the intake negative pressure of the engine. It is clear that these change the timing of generating the ignition signal to the ignition signal generating means 20, that is, the ignition timing of the engine, and therefore the same ignition timing control as conventionally known control is achieved.
このように適正な作動が達成される上、上記構
成によれば、進角用プレート手段１０の固定プレ
ート１１によつてハウジング１の開口端が閉じら
れており、これにより、単に蓋するだけのキヤツ
プが廃止されている。すなわち部品点数が低減さ
れている。また進角手段３０と連絡された可動プ
レート１４は固定プレート１１のハウジング内部
側表面に取付けられ、信号発生用ロータ７よりも
ハウジング１の開口端側に位置している。従つ
て、組立てに際しては、信号発生用ロータ７を組
付けた後で、点火信号発生手段２０が取付けられ
た進角用プレート手段１０を組付けることが可能
となされ、これにより組立ての容易化が図られて
いる。 In addition to achieving proper operation as described above, according to the above structure, the open end of the housing 1 is closed by the fixed plate 11 of the advancing plate means 10, so that it is not necessary to simply cover the opening end of the housing 1. Cap is obsolete. In other words, the number of parts is reduced. The movable plate 14, which is connected to the advance angle means 30, is attached to the inner surface of the housing of the fixed plate 11, and is located closer to the open end of the housing 1 than the signal generating rotor 7. Therefore, during assembly, it is possible to assemble the advancing plate means 10 to which the ignition signal generating means 20 is attached after the signal generating rotor 7 is assembled, which facilitates assembly. It is planned.
さらに、駆動シヤフト３がその下端部で第１の
軸受４により支持されると共に、上端で第２の軸
受１３により支持されている。第２の軸受１３は
進角用プレート手段１０の固定プレート１１に固
定されたもので、外周では可動プレート１４をも
支持している。このように１つの軸受１３で駆動
シヤフト３と可動プレート１４とを支持している
結果、駆動シヤフト３の円滑な回転が得られるの
は勿論のこと、駆動シヤフト３に係合されたロー
タ７と可動プレート１４に固定された点火信号発
生手段２０との振れ（偏心）が小さくなり、点火
信号のスキツタリングや角度精度が向上する。 Furthermore, the drive shaft 3 is supported by a first bearing 4 at its lower end and by a second bearing 13 at its upper end. The second bearing 13 is fixed to the fixed plate 11 of the advancing plate means 10, and also supports the movable plate 14 on its outer periphery. As a result of supporting the drive shaft 3 and the movable plate 14 with one bearing 13 in this way, not only smooth rotation of the drive shaft 3 is obtained, but also the rotation of the rotor 7 engaged with the drive shaft 3. The deflection (eccentricity) with respect to the ignition signal generating means 20 fixed to the movable plate 14 is reduced, and the squittling and angular accuracy of the ignition signal are improved.
第３図は本発明の他の実施例を示す。この実施
例を上述の実施例との相違点につき説明すると、
ここでは信号発生用ロータ７′は皿状をなし、そ
の筒部内周に機関気筒数と同数の突起部７′ａを
有している。一方、進角手段３０′によつて回動
される進角用プレート手段１０′の可動プレート
１４′にはロータ７′の外周側に位置する突出部１
４′ａが形成され、これと対応する位置でロータ
７′の内側に、固定プレート１１′に固定された点
火信号発生手段２０′が配置されている。 FIG. 3 shows another embodiment of the invention. To explain the differences between this embodiment and the above-mentioned embodiments,
Here, the signal generating rotor 7' is dish-shaped and has protrusions 7'a on the inner periphery of its cylindrical portion, the same number as the number of engine cylinders. On the other hand, the movable plate 14' of the advance angle plate means 10' rotated by the advance angle means 30' has a protrusion 1 located on the outer peripheral side of the rotor 7'.
4'a is formed, and an ignition signal generating means 20' fixed to the fixed plate 11' is arranged inside the rotor 7' at a position corresponding to this.
なお、固定プレート１１′がハウジング１′の開
口端を閉じている点、固定プレート１１′への軸
受１３′の取付構造、並びに軸受１３′への可動プ
レート１４′および駆動シヤフト３′の支持構造
は、上述の実施例と同一である。 Note that the fixed plate 11' closes the open end of the housing 1', the mounting structure of the bearing 13' to the fixed plate 11', and the support structure of the movable plate 14' and the drive shaft 3' to the bearing 13'. is the same as the example described above.
しかしてこの実施例でも、可動プレート１４′
の回動によつて点火時期が変化するのは勿論であ
りまた部品点数の低減および組付の容易化が達成
されるのは明らかである。 However, also in this embodiment, the movable plate 14'
It goes without saying that the ignition timing changes by the rotation of the engine, and it is also obvious that the number of parts can be reduced and assembly can be facilitated.
以上説明した通りで本発明によれば、構造が簡
単で部品点数が少なく、しかも高性能な点火信号
発生装置を提供することができるというすぐれた
効果が得られる。 As explained above, according to the present invention, it is possible to provide an ignition signal generating device with a simple structure, a small number of parts, and high performance.
第１図は本発明装置の一実施例を示す断面正面
図、第２図はその平面図、第３図は本発明の他の
実施例を示す断面正面図である。
１，１′…ハウジング、３，３′…駆動シヤフ
ト、７，７′…信号発生用ロータ、１０，１０′…
進角用プレート手段、１１，１１′…固定プレー
ト、１３，１３′…軸受、１４，１４′…可動プレ
ート、２０，２０′…点火信号発生手段、３０，
３０′…進角手段。
FIG. 1 is a sectional front view showing one embodiment of the apparatus of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a sectional front view showing another embodiment of the invention. 1, 1'... Housing, 3, 3'... Drive shaft, 7, 7'... Signal generation rotor, 10, 10'...
Advance angle plate means, 11, 11'... fixed plate, 13, 13'... bearing, 14, 14'... movable plate, 20, 20'... ignition signal generating means, 30,
30'... Advance angle means.
Claims (1)
に挿通され内燃機関によつて回転される駆動シヤ
フトと；この駆動シヤフトに係合された信号発生
用ロータと；中心部にカツプ状の支持部が突出形
成された円板状の固定プレート、その支持部に保
持された軸受およびこの軸受の外周に回動可能に
支持れた可動プレートを有する進角用プレート手
段と；上記信号発生用ロータと対向して上記進角
用プレート手段に取付けられた点火信号発生手段
と；上記進角プレート手段の可動プレートに連結
され、内燃機関の運転条件に応じて上記可動プレ
ートを回動させる進角手段と；を備え、上記進角
用プレート手段の固定プレートを上記ハウジング
の上縁開口端に、上記可動プレートおよび点火信
号発生手段がハウジング内に位置すると共に、固
定プレートにより上記ハウジングの開口端が蓋さ
れる状態で固定し、かつ上記固定プレートの支持
部内に上記軸受を介して上記駆動シヤフトの先端
を回動可能に収納したことを特徴とする内燃機関
用点火信号発生装置。1 a generally cylindrical housing; a drive shaft inserted into the housing and rotated by an internal combustion engine; a signal generating rotor engaged with the drive shaft; a cup-shaped support protruding from the center; an advancing plate means having a formed disc-shaped fixed plate, a bearing held on the supporting portion thereof, and a movable plate rotatably supported on the outer periphery of the bearing; facing the signal generating rotor; an ignition signal generating means attached to the advance angle plate means; and an advance angle means connected to the movable plate of the advance angle plate means for rotating the movable plate according to operating conditions of the internal combustion engine. a state in which the fixed plate of the advancing plate means is located at an open end of the upper edge of the housing, the movable plate and the ignition signal generating means are located within the housing, and the open end of the housing is covered by the fixed plate. An ignition signal generating device for an internal combustion engine, characterized in that the drive shaft is fixed at the base plate, and the tip of the drive shaft is rotatably housed in the support portion of the fixing plate via the bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6084779A JPS55153857A (en) | 1979-05-16 | 1979-05-16 | Ignition signal generator for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6084779A JPS55153857A (en) | 1979-05-16 | 1979-05-16 | Ignition signal generator for internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55153857A JPS55153857A (en) | 1980-12-01 |
| JPS6160990B2 true JPS6160990B2 (en) | 1986-12-23 |
Family
ID=13154164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6084779A Granted JPS55153857A (en) | 1979-05-16 | 1979-05-16 | Ignition signal generator for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55153857A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53134127A (en) * | 1977-04-27 | 1978-11-22 | Mitsubishi Electric Corp | Engine ignition signal generating device |
-
1979
- 1979-05-16 JP JP6084779A patent/JPS55153857A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53134127A (en) * | 1977-04-27 | 1978-11-22 | Mitsubishi Electric Corp | Engine ignition signal generating device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55153857A (en) | 1980-12-01 |
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