JPH04501909A - variable tuning transmission - Google Patents

variable tuning transmission

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Publication number
JPH04501909A
JPH04501909A JP2507433A JP50743390A JPH04501909A JP H04501909 A JPH04501909 A JP H04501909A JP 2507433 A JP2507433 A JP 2507433A JP 50743390 A JP50743390 A JP 50743390A JP H04501909 A JPH04501909 A JP H04501909A
Authority
JP
Japan
Prior art keywords
support member
drive
variable
sliding member
sleeve
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
JP2507433A
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Japanese (ja)
Inventor
バン アバルマエテ ギルバート,ルシアン,チャールス,ヘンリ,ルイス
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of JPH04501909A publication Critical patent/JPH04501909A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H35/00Gearings or mechanisms with other special functional features
    • F16H35/008Gearings or mechanisms with other special functional features for variation of rotational phase relationship, e.g. angular relationship between input and output shaft
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/34403Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using helically teethed sleeve or gear moving axially between crankshaft and camshaft

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)
  • General Details Of Gearings (AREA)
  • Transmission Devices (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

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

Description

【発明の詳細な説明】 可変同調トランスミッション 本発明は、内燃機関のルクセンブルグ特許84.574に開示されているような 可変インターロック・ドライブに係るものである。[Detailed description of the invention] variable tuning transmission The invention relates to internal combustion engines such as those disclosed in Luxembourg patent 84.574. This relates to a variable interlock drive.

上記の特許に開示された可変インターロック・ドライブの基礎となっているアッ センブリーは2つの支持部材と滑動部材とを備えており、2つのギヤーは2つの 支持体を有するスリーブ(ドライブ・ハウジング)によってそれぞれ支持され、 そして滑動部材は2本の固定ガイドビンに沿って動くようになっている。両支持 部材は、エンジンのクランクケースへ固定されるよう設計されているケーシング を形成している。The upgrade underlying the variable interlock drive disclosed in the above patents The assembly includes two supporting members and a sliding member, and the two gears have two supporting members and a sliding member. each supported by a sleeve (drive housing) having a support; The sliding member is adapted to move along two fixed guide bins. both support The component is a casing designed to be fixed to the engine crankcase. is formed.

本発明の目的は、−個だけの支持部材と滑動部材とを備えており、−個だけの支 持部材を有するスリーブが2つのギヤーをそれぞれ支持しているようにしたアッ センブリーに基礎を置く可変インターロック・ドライブを実現する手段に係る。An object of the invention is to provide only - supporting members and sliding members; An assembly in which a sleeve with a holding member supports two gears respectively. This invention relates to a means for realizing variable interlock drives based on assembly.

支持部材内へ滑動するガイドピンは滑動部材へ取りつけられている。支持部材は クラクケースヘ片持ち梁のように固定された一片(鋳造一体)から成るか、もし くは支持部材はエンジンのクランクケースに組み込まれている。A guide pin that slides into the support member is attached to the slide member. The support member It consists of a single piece (cast in one piece) fixed like a cantilever to the crack case, or if In other words, the support member is incorporated into the engine crankcase.

上記手段は、高い剛性を持ち、加工部品の数が少なく、そしてコンパクトなアッ センブリーとなっている可変インターロック・ドライブを提供するという利点を もたらす。The above method has high rigidity, a small number of machined parts, and a compact installation. Benefits of providing variable interlock drive assemblies bring.

本発明は61変圧縮比とスパークもしくは圧縮点火手段とを有する2サイクルも しくは4サイクルエンジンに、これに限定するものではないが、主として適用す る。The present invention also provides a two-cycle system having a variable compression ratio of 61 and a spark or compression ignition means. Mainly, but not exclusively, applied to 4-stroke engines or 4-cycle engines. Ru.

エンジンのクランクケースへ片持ち梁のように固定された一片(鋳造一体)が支 持部材となっている。本発明の可変インターロック・ドライブの好ましい実施例 を以下に一例として説明する。It is supported by a piece (cast integrally) fixed like a cantilever to the engine crankcase. It is a holding member. Preferred embodiments of the variable interlock drive of the present invention will be explained below as an example.

本発明の可変インターロック・ドライブの原理は以下の説明と添付図との両方に よって簡単に理解されよう。The principle of the variable interlock drive of the invention is illustrated both in the following description and in the accompanying drawings. Therefore, it can be easily understood.

添付図は可変インターロック・ドライブの斜視図であり、そして前の方に2本の ガイドビン8.8′と滑動部材2とを示し、後の方に支持部材1を示し、そして これら2つの部材の間に2つのスリーブ20.20’を示し、これらのスリーブ はギヤー3.4と一体となっており、2本の駆動シャフト16.17を通してい る。The attached figure is a perspective view of the variable interlock drive and shows the two front The guide bin 8.8' and the sliding member 2 are shown, the support member 1 is shown towards the rear, and Two sleeves 20, 20' are shown between these two members, and these sleeves is integrated with gear 3.4 and passes through the two drive shafts 16.17. Ru.

本発明に従ってクランクケースの内側もしくは外側に支持部ヰ]1を固定する手 段を講じている。この目的で支持部材1の外縁5の部分は段になっていて、そし てエンジンのクランクシャフトへ支持部材1をボルトで止めるための孔6が開け である。A hand for fixing the support part 1 to the inside or outside of the crankcase according to the present invention I am taking dan. For this purpose, the outer edge 5 of the support member 1 is stepped and A hole 6 is made for bolting the support member 1 to the engine crankshaft. It is.

ガイドチューブ7.7′による手段が講じられていて、これらのガイドチューブ は支持部材1の両側の中心に設置されている。両ガイドチューブ7.7′は対称 的であり、そして支持部材1の面の両側12.12’から垂直に突出している。Provision is made by means of guide tubes 7.7', these guide tubes are installed at the center of both sides of the support member 1. Both guide tubes 7.7' are symmetrical and projecting perpendicularly from both sides 12, 12' of the surface of the support member 1.

支持部材1の面12に対してガイドチューブ7.7′の突出が十分となっていて 、滑動部材2と支持部材1とが一緒になるとき両ギヤー3.4を包み込むように するための他の手段も購じられている。The guide tube 7.7' projects sufficiently relative to the surface 12 of the support member 1. , so as to wrap around both gears 3.4 when the sliding member 2 and the support member 1 come together. Other means to do so are also being purchased.

支持部材1側で面12にも手段を設け、そこではガイドピン8.8′の端9.9 ′の直径は小さく、そしてねじを切っであるのが有利である。これらのガイドピ ン8゜8′の各端は滑動部キイ2の両側に滑動部材2の面11′をのびている孔 (図示されていない)の一つを通る。側面の厚みは滑動部材2の側で而11で薄 くなっているのが有利で、ガイドピン8,8′の端9,9′が孔に突入している 。端9,9′をナツト23.23’で締めて、滑動部材の面11,11’を支持 部材1の面12,12′へ平行に調整する。Means are also provided on the side of the support member 1 in the face 12, in which the end 9.9 of the guide pin 8.8' ' has a small diameter and is advantageously threaded. These guide pins Each end of the pin 8° 8' has a hole extending through the surface 11' of the sliding member 2 on both sides of the sliding part key 2. (not shown). The thickness of the side surface is thinner at 11 on the sliding member 2 side. Advantageously, the ends 9, 9' of the guide pins 8, 8' protrude into the holes. . Tighten the ends 9, 9' with nuts 23, 23' to support the faces 11, 11' of the sliding member. Adjustment parallel to surfaces 12, 12' of member 1.

上記の手段によってガイドピン8.8′はガイドチューブ7.7′内を前後に滑 動できて、滑動部材2と支持部材1とが一緒になったり、離れたりすることがで きる。By the means described above, the guide pin 8.8' slides back and forth in the guide tube 7.7'. The sliding member 2 and the supporting member 1 can be moved together or separated. Wear.

滑動部材2の進行を制限する手段を支持部材1側の而12′に設け、そこでは両 ガイドビン8.8′の端13゜13′に進行リミタ−として作用するフランジを 設ける。Means for restricting the advance of the sliding member 2 are provided at 12' on the side of the support member 1, in which both A flange is provided at the end 13°13' of the guide bin 8.8' to act as a travel limiter. establish.

滑動部材2、もしくはガイドビン8゜8′のすべての端9.9′と13.13’  に、直線コントロールのカップリング手段を設ける。All ends 9.9' and 13.13' of the sliding member 2 or guide pin 8°8' is provided with coupling means for linear control.

本発明に従7て、ベアリング15.15’のため2つの座孔14,14’が支持 部材1内の手段となっている。According to the invention, two seat holes 14, 14' are supported for bearings 15, 15'. It is a means within the member 1.

これらの座孔14,14’ は、ガイドチューブ7.7′が形成する両側を分離 している中線上で、支持部材1の両面12.12’ と直行し、そして座孔14 ,14’ は支持部材1の中心から等距離にある。支持部材1の内側で座孔14 内にあるベアリング15は駆動シャフト16を支持し、そして座孔14′内にあ るベアリング15′は駆動シャフト17を支持している。These seat holes 14, 14' separate the two sides formed by the guide tube 7.7'. on the midline of the support member 1, perpendicular to both sides 12, 12' of the support member 1, and the seat hole 14 , 14' are equidistant from the center of the support member 1. A seat hole 14 is formed inside the support member 1. A bearing 15 located within supports the drive shaft 16 and is located within the seat bore 14'. A bearing 15' supports the drive shaft 17.

本発明に従って、滑動部材2の両方の面11.11’と直行しているベアリング 22.22’のため2つの座孔21,21’が更に手段となっている。座孔21 ,21′の中心を通る中線上で、支持部材1の中心からの座孔14,14’の距 離と同じ滑動部材2の中心からの距離に滑動部材2の2つの座孔を分けて、座孔 14と21の間と座孔14′と21′の間とでアライメントをとっている。支持 部材1の側の面12′上で両駆動シャフト16.17に真っ直ぐなスプライン1 8.18’ を設けて2つのエンジン・クランクシャフトの一方へのシャフト結 合ができるようにしている。Bearings perpendicular to both faces 11,11' of sliding member 2 according to the invention 22. Two seat holes 21, 21' are further provided for 22'. Seat hole 21 , 21', the distance of the seat holes 14, 14' from the center of the support member 1. Separate the two seat holes of the sliding member 2 at the same distance from the center of the sliding member 2, and Alignment is achieved between 14 and 21 and between seat holes 14' and 21'. support A straight spline 1 on both drive shafts 16, 17 on the side surface 12' of part 1. 8.18’ to connect the shaft to one of the two engine crankshafts. We make sure that we can meet each other.

支持部材1の側の面12上で両駆動シャフト16.17にらせん状のスプライン 19.19’を設け、そのらせんは同じ方向に巻いているのが有利である。Helical splines on both drive shafts 16, 17 on the side surface 12 of the support member 1 19, 19' are provided, the helices of which are advantageously wound in the same direction.

らせん状のスプラインを設けたスリーブ20は、駆動シャフト16のらせん状ス プライン19に沿って滑動し、そしてらせん状のスプラインを設けたスリーブ2 0’ は。The helical splined sleeve 20 is connected to the helical spline of the drive shaft 16. Sleeve 2 sliding along plines 19 and provided with helical splines 0' is.

駆動シャフト17のらせん状スプライン19′に沿って滑動する。スリーブ20 にギヤー3を設け、スリーブ20′にギヤー4を設ける。両ギヤー3.4は支持 部材1と滑動部材2との間にあって、両駆動シャフト16.17間で同じ回転速 度のトルクをつくる。スリーブ20はギヤー3と一体であり、スリーブ20′は ギヤー4と一体であり、そしてスリーブ20はベアリング22によって、スリー ブ20′によってそれぞれ担持されている。It slides along the helical spline 19' of the drive shaft 17. sleeve 20 A gear 3 is provided on the sleeve 20', and a gear 4 is provided on the sleeve 20'. Both gears 3.4 are supported between member 1 and sliding member 2, with the same rotational speed between both drive shafts 16,17; Creates a degree of torque. The sleeve 20 is integral with the gear 3, and the sleeve 20' is The sleeve 20 is integral with the gear 4, and the sleeve 20 is connected to the sleeve 20 by means of a bearing 22. 20', respectively.

ベアリング22は滑動部材2の適当な座21に、そしてベアリング22′は滑動 部材2の適当な座21′にそれぞれ置かれている。The bearing 22 is placed in the appropriate seat 21 of the sliding member 2, and the bearing 22' is placed in the sliding Each is placed in a suitable seat 21' of the member 2.

支持部材1に対して滑動部材2が動く毎にスリーブ20.20’ は同時に並行 運動と回転運動とを行う。スリーブ20はらせん状のスプライン19上に、そし てスリーブ20′はらせん状のスプライン19′上に、両ギヤー3.4間に新し いアンギュラ−・インターロックを形成し、これらのギヤーは両駆動シャフト1 6..17へそれらが回転している間しっかり接続されている。Every time the sliding member 2 moves relative to the support member 1, the sleeves 20, 20' simultaneously move in parallel. Performs motion and rotational motion. The sleeve 20 is placed over the helical spline 19 and The new sleeve 20' is placed on the helical spline 19' between both gears 3.4. These gears form a tight angular interlock between both drive shafts. 6. .. 17 so that they are firmly connected while rotating.

平成3年1月29日January 29, 1991

Claims (7)

【特許請求の範囲】[Claims] 1.支持部材1と滑動部材2とを備えたアッセンブリーから成り、一つの支持だ けを有するスリーブ20,20′によって2つのギヤ−3,4がそれぞれ支持さ れており、そして支持部材1内へ滑り込むガイドピン8,8′が滑動部材2の両 側に固定され、前記の部材1,2は一緒にされたり、離されたりすることを特徴 とする可変インターロック・ドライブ。1. It consists of an assembly with a support member 1 and a sliding member 2, which is one support. Two gears 3 and 4 are supported by sleeves 20 and 20' having The guide pins 8, 8', which are mounted on the support member 1 and slide into the support member 1, fixed to the side, and characterized in that said members 1 and 2 can be brought together or separated. variable interlock drive. 2.ガイドチューブ7,7′は支持部材1の両側中央に配置されており、そして 支持部材1の面12,12′の各側に垂直に突出していて、それぞれのガイド・ ピン8,8′を収容し、それらのねじ付き端9,9′は滑動部材2の側方の拡張 の孔を通り、そして支持部材1の面12,12′に並行に滑動部材2の面11. 11′を調整するための締めつけナット23,23′を受けるようになっている ことを特徴とした請求項1に記載の可変インターロック・ドライブ。2. The guide tubes 7, 7' are arranged centrally on both sides of the support member 1, and Projecting perpendicularly on each side of the surfaces 12, 12' of the support member 1, each guide The pins 8, 8' are accommodated, their threaded ends 9, 9' extending in the lateral direction of the sliding member 2. and parallel to the surfaces 12, 12' of the support member 1, the surface 11. of the sliding member 2. It is designed to receive tightening nuts 23, 23' for adjusting 11'. A variable interlock drive according to claim 1, characterized in that: 3.ガイドチューブ7,7′は対称であり、そして支持部材1を越えてアッセン ブリー内で並行に突出して、滑動部材2と支持部材1とが一緒になると両ギヤ− 3,4を包み入れることを特徴とした請求項1ないし2に記載の可変インターロ ック・ドライブ。3. The guide tubes 7, 7' are symmetrical and can be assembled beyond the support member 1. When the sliding member 2 and the supporting member 1 come together, both gears protrude in parallel within the 3. The variable interlock according to claim 1 or 2, characterized in that drive. 4.ガイドチューブ7,7′はアッセンブリーの外側で平行に突出してガイドピ ン8,8′を支持し、これらは支持部材1の側の面12′に設けられ、フランジ 13,13′は進行リミターとして作用することを特徴とした請求項1ないし3 に記載の可変インターロック・ドライブ。4. The guide tubes 7, 7' protrude parallel to each other on the outside of the assembly and are connected to the guide pins. 8, 8', which are provided on the side surface 12' of the support member 1 and are attached to the flanges. Claims 1 to 3 characterized in that 13 and 13' act as advance limiters. Variable interlock drive as described in . 5.支持部材1と滑動部材2とはガイドピン8,8′に対し中線に従って両方と も設けられており、2つの揃った座孔14,14′と21,21′とはベアリン グ15,15′と22,22′のためのものであり、これらのベアリングはベア リング15,15′にそれぞれ軸方向でロックされた駆動シャフト16,17を 支持しており、支持部材1の外側12′で駆動シャフト16,17に真っ直ぐな スプライン18,18′を設け、支持部材1の内側12でらせん状のスプライン 19,19′を設け、らせんは同じ方向に巻いており、その上を滑動するスリー ブ20,20′には対応するスプラインを設け、スリーブ20はギヤ−3を支持 し、そしてスリーブ20′はギヤ−4を支持し、これらのギヤ−3,4は支持部 材1と滑動部材2との間でアッセンブリーの内側にあり、そしてスリーブ20, 20′はベアリング22,22′により滑動部材2内で支持され、そして軸方向 にロックされることを特徴とした請求項1ないし4に記載の可変インターロック ・ドライブ。5. The support member 1 and the sliding member 2 are both aligned along the center line with respect to the guide pins 8, 8'. The two aligned seat holes 14, 14' and 21, 21' are provided with bearing bearings. These bearings are for bearings 15, 15' and 22, 22'. Drive shafts 16 and 17 are axially locked to rings 15 and 15', respectively. The drive shafts 16, 17 are supported on the outer side 12' of the support member 1. Splines 18, 18' are provided, with a helical spline on the inner side 12 of the support member 1. 19, 19' are provided, the spirals are wound in the same direction, and a sleeve that slides on them is provided. The sleeves 20 and 20' are provided with corresponding splines, and the sleeve 20 supports the gear 3. The sleeve 20' supports the gear 4, and these gears 3 and 4 are connected to the support part. inside the assembly between the material 1 and the sliding member 2, and a sleeve 20, 20' is supported within the sliding member 2 by bearings 22, 22' and is axially The variable interlock according to claim 1, wherein the variable interlock is locked to ·drive. 6.支持部材1は単一の鋳造片からつくられ、エンジンのクランクケースへ固定 され、それにより前記の支持部材1は可変インターロック・ドライブの部分を形 成するその他のすべての要素を片持ち梁のように支持していることを特徴とした 請求項1ないし5に記載の可変インターロック・ドライブ。6. The support member 1 is made from a single cast piece and is fixed to the engine crankcase. , whereby said support member 1 forms part of a variable interlock drive. It is characterized by supporting all other elements in the structure like a cantilever beam. A variable interlock drive according to claims 1 to 5. 7.支持部材1はエンジンのクランク・ケースの一体部分を形成しており、そし て可変インターロック・ドライブのその他のすべての要素をエンジンのクランク ・ケースにより直接片持ち梁のように支持していることを特徴とした請求項1な いし5に記載の可変インターロック・ドライブ。7. The support member 1 forms an integral part of the engine crankcase and is A variable interlock drive connects all other elements of the engine to the crank ・Claim 1 characterized in that it is directly supported like a cantilever by the case. The variable interlock drive described in item 5.
JP2507433A 1989-05-30 1990-05-25 variable tuning transmission Pending JPH04501909A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU87530 1989-05-30
LU87530A LU87530A1 (en) 1989-05-30 1989-05-30 TIMING VARIATION TRANSMISSION

Publications (1)

Publication Number Publication Date
JPH04501909A true JPH04501909A (en) 1992-04-02

Family

ID=19731167

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2507433A Pending JPH04501909A (en) 1989-05-30 1990-05-25 variable tuning transmission

Country Status (6)

Country Link
EP (1) EP0429579A1 (en)
JP (1) JPH04501909A (en)
AU (1) AU5638490A (en)
CA (1) CA2033197A1 (en)
LU (1) LU87530A1 (en)
WO (1) WO1990015269A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE368775C (en) * 1923-02-09 Samuel Haltenberger Automatic altitude control device for aircraft engines
US1885796A (en) * 1930-02-15 1932-11-01 Eoulet Georges Valve operating mechanism
US3313280A (en) * 1965-04-16 1967-04-11 Automobile Racing Club Of Okla Variable valve timing mechanism
JPS63297843A (en) * 1987-04-02 1988-12-05 キャンディ マニュファクチュアリング カンパニー インコーポレーテッド Phase regulating mechanism

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WO1990015269A1 (en) 1990-12-13
AU5638490A (en) 1991-01-07
CA2033197A1 (en) 1990-12-01
LU87530A1 (en) 1989-09-12
EP0429579A1 (en) 1991-06-05

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