JPH0482452U - - Google Patents
Info
- Publication number
- JPH0482452U JPH0482452U JP12579290U JP12579290U JPH0482452U JP H0482452 U JPH0482452 U JP H0482452U JP 12579290 U JP12579290 U JP 12579290U JP 12579290 U JP12579290 U JP 12579290U JP H0482452 U JPH0482452 U JP H0482452U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- piston pin
- ring
- pin
- boss hole
- 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
- 230000002000 scavenging effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Description
第１図は本考案によるピストンの第１実施例を
示す断面図、第２図は本考案によるピストンの第
２実施例を示す断面図、第３図は第１実施例およ
び第２実施例が適用される２サイクル直噴エンジ
ンの概略構成断面図である。
１……エンジン本体、２……シリンダ、３……
ピストン、３ａ，３ｂ，３ｃ……リング溝、３ｄ
……ピストンピンボス孔、３ｅ……オイル供給孔
、３ｆ……段部、４……クランクケース、５……
クランク軸、６……コネクテイングロツド、７…
…バランサ、８……オイルパン、９……燃焼室、
１０……点火プラグ、１１……インジエクタ、１
２……排気ポート、１３……排気ロータリバルブ
、１４……ベルト伝動手段、１５……排気管、１
６……排気チヤンバ、１７……マフラ、１８……
掃気ポート、１９……掃気管、２０……掃気チヤ
ンバ、２１……インタークーラ、２２……掃気ポ
ンプ、２３……ベルト伝動手段、２４……吸入管
、２５……エアクリーナ、２６……バイパス通路
、２７……アクセルペダル、２８……制御弁、２
９……コンプレツシヨンリング、３０，３１……
オイルリング、３２……エアフローメータ、３３
……ピストンピン、３４……サークリツプ、３５
……Ｏリング、３６……メクラ栓、３６ａ……ネ
ジ部、３６ｂ……ツバ、３６ｃ……六角孔、３７
……Ｏリング。
FIG. 1 is a sectional view showing a first embodiment of a piston according to the present invention, FIG. 2 is a sectional view showing a second embodiment of a piston according to the present invention, and FIG. 3 is a sectional view showing a first embodiment of a piston according to the present invention. FIG. 1 is a schematic cross-sectional view of a two-stroke direct injection engine to which the present invention is applied. 1...Engine body, 2...Cylinder, 3...
Piston, 3a, 3b, 3c...Ring groove, 3d
...Piston pin boss hole, 3e...Oil supply hole, 3f...Step, 4...Crankcase, 5...
Crankshaft, 6... Connecting rod, 7...
... Balancer, 8 ... Oil pan, 9 ... Combustion chamber,
10...Spark plug, 11...Injector, 1
2...Exhaust port, 13...Exhaust rotary valve, 14...Belt transmission means, 15...Exhaust pipe, 1
6...exhaust chamber, 17...muffler, 18...
Scavenging port, 19... scavenging pipe, 20... scavenging chamber, 21... intercooler, 22... scavenging pump, 23... belt transmission means, 24... suction pipe, 25... air cleaner, 26... bypass passage , 27...Accelerator pedal, 28...Control valve, 2
9...Compression ring, 30, 31...
Oil ring, 32...Air flow meter, 33
... Piston pin, 34 ... Circlip, 35
...O ring, 36 ... Blind plug, 36a ... Threaded part, 36b ... Collar, 36c ... Hexagonal hole, 37
...O-ring.
Claims (1)
るピストンピンボス孔との間のピンクリアランス
をシールするＯリングを、ピストンピンの両端部
外周とピストンピンボス孔との間に介設したこと
を特徴とする２サイクルエンジンのピストン。 ２ ピストンピンの両端部内周に螺合してピスト
ンピンをピストンに対し軸方向に係止する係止部
材を設け、この係止部材とピストンピンボス孔と
の間に上記Ｏリングを介設したことを特徴とする
２サイクルエンジンのピストン。[Claims for Utility Model Registration] 1. An O-ring that seals the pin clearance between the outer periphery of the piston pin and the piston pin boss hole into which the piston pin fits is installed between the outer periphery of both ends of the piston pin and the piston pin boss hole. A two-stroke engine piston characterized by an intervening piston. 2. A locking member is provided that is screwed onto the inner periphery of both ends of the piston pin to lock the piston pin in the axial direction with respect to the piston, and the O-ring is interposed between the locking member and the piston pin boss hole. A 2-cycle engine piston featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12579290U JPH0482452U (en) | 1990-11-28 | 1990-11-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12579290U JPH0482452U (en) | 1990-11-28 | 1990-11-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0482452U true JPH0482452U (en) | 1992-07-17 |
Family
ID=31873378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12579290U Pending JPH0482452U (en) | 1990-11-28 | 1990-11-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0482452U (en) |
-
1990
- 1990-11-28 JP JP12579290U patent/JPH0482452U/ja active Pending
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