WO2008055450A1 - Piston de moteur - Google Patents

Piston de moteur Download PDF

Info

Publication number
WO2008055450A1
WO2008055450A1 PCT/CN2008/070006 CN2008070006W WO2008055450A1 WO 2008055450 A1 WO2008055450 A1 WO 2008055450A1 CN 2008070006 W CN2008070006 W CN 2008070006W WO 2008055450 A1 WO2008055450 A1 WO 2008055450A1
Authority
WO
WIPO (PCT)
Prior art keywords
oil
piston
engine
ring groove
present
Prior art date
Application number
PCT/CN2008/070006
Other languages
English (en)
Chinese (zh)
Inventor
Yujin Chen
Original Assignee
Yujin Chen
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
Priority claimed from CN 200620067453 external-priority patent/CN200978732Y/zh
Priority claimed from CNU2007200586263U external-priority patent/CN201100182Y/zh
Application filed by Yujin Chen filed Critical Yujin Chen
Publication of WO2008055450A1 publication Critical patent/WO2008055450A1/fr

Links

Classifications

    • 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
    • F02F3/00—Pistons 

Definitions

  • the present invention relates to an engine piston.
  • the gap is formed by: after the inner bore of the cylinder is polished by the bore and the inner bore, the shape and the cylindricity of the inner bore have a tolerance band, and the steam ring on the piston and the joint circumference of the oil ring and the inner bore of the cylinder are generated; In addition, since both the steam ring and the oil ring are open, after these rings are engaged with the inner bore of the cylinder, there is a closed gap between each ring and the cylinder. These gaps cause gasoline atomization gas leakage during the work process, which is serious. It affects the stability of power. When liquefied gas is used as fuel, the liquefied gas is more leaky than the atomized combustion gas of gasoline, and the leakage is more serious. The compression ratio and power generated in the work are not up to the technology. Design standards, resulting in incomplete combustion and unstable emissions.
  • the present invention provides an engine piston which is simple in construction and prevents fuel leakage.
  • An engine piston comprising a ring groove and an oil ring groove disposed on a surface of the piston body, wherein the surface of the piston body is located below the oil ring groove and is provided with a plurality of oil storage grooves.
  • the oil reservoir is annular.
  • the number of oil storage tanks is 2-12.
  • the oil reservoir is in the shape of a pit.
  • the beneficial effects of the present invention are: Since the present invention is provided with a plurality of oil storage grooves under the oil ring groove on the surface of the piston body, the lubricating oil can be stored in the oil storage grooves, and can be further improved in the production process.
  • the smoothness of the inner wall of the cylinder reduces the friction coefficient between the piston and the inner wall of the cylinder, prevents the product from leaking in the combustion gas of the work, reduces the carbon deposit on the top of the piston, stabilizes and increases the compression ratio of the combustion chamber, and improves the compression ratio.
  • the power of the engine [13] BRIEF DESCRIPTION OF THE DRAWINGS
  • Figure 1 is a schematic view showing the structure of the present invention
  • Figure 2 is a schematic view of the structure of the present invention.
  • Figure 3 is a schematic view showing the structure of the present invention.
  • Figure 4 is a schematic view showing the structure of the present invention.
  • an engine piston includes a ring groove 1 and an oil ring groove 2 disposed on a surface of a piston body.
  • the piston body surface is located below the oil ring groove 2 and is provided with a plurality of oil storage grooves 3.
  • the oil reservoir 3 is annular.
  • the number of the oil storage tanks 3 is 2-12.
  • the oil reservoir 3 has a concave shape.
  • the present invention is provided with a plurality of oil storage tanks 3 under the oil ring groove 2 on the surface of the piston body, the lubricating oil can be stored in the oil storage tanks 3, and the smoothness of the inner wall of the cylinder can be further improved during the production process.
  • the friction coefficient between the piston and the inner wall of the cylinder is reduced, the product is prevented from leaking in the combustion gas of the work, the carbon deposit on the top of the piston is reduced, the compression ratio of the combustion chamber is stabilized and increased, and the power of the engine is improved.
  • the present invention has a simple structure, prevents fuel leakage, and improves the power of the engine, and is an engine piston widely used in engines.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

L'invention concerne le piston d'un moteur, des rainures annulaires (1) pour le gaz et une rainure annulaire pour l'huile étant formées sur la surface du corps du piston. Une pluralité de rainures (3) de stockage d'huile sont disposées sur la surface du corps du piston et en dessous de la rainure annulaire (2) pour l'huile. Le coefficient de frottement entre le piston et la paroi interne du cylindre est réduit par stockage de l'huile lubrifiante dans les rainures (3) de stockage de l'huile, permettant ainsi de prévenir toute fuite de combustible et d'améliorer la puissance du moteur.
PCT/CN2008/070006 2006-11-10 2008-01-02 Piston de moteur WO2008055450A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN200620067453.7 2006-11-10
CN 200620067453 CN200978732Y (zh) 2006-11-10 2006-11-10 汽油机防泄漏活塞
CN200720058626.3 2007-10-23
CNU2007200586263U CN201100182Y (zh) 2007-10-23 2007-10-23 一种发动机活塞

Publications (1)

Publication Number Publication Date
WO2008055450A1 true WO2008055450A1 (fr) 2008-05-15

Family

ID=39364196

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2008/070006 WO2008055450A1 (fr) 2006-11-10 2008-01-02 Piston de moteur

Country Status (1)

Country Link
WO (1) WO2008055450A1 (fr)

Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2184091Y (zh) * 1993-12-11 1994-11-30 毕耜胜 储油活塞
CN2260173Y (zh) * 1996-02-14 1997-08-20 王保东 一种带有自动润滑及调隙装置的活塞组件
CN2423415Y (zh) * 2000-06-14 2001-03-14 韩晓静 延长发动机使用寿命的活塞
CN2617938Y (zh) * 2003-05-05 2004-05-26 田治平 摩托车活塞
CN1157532C (zh) * 2000-04-11 2004-07-14 朱志鸿 二环组高效密封活塞与活塞环组件
CN2627228Y (zh) * 2003-05-05 2004-07-21 田治平 四冲程摩托车活塞
JP2004225597A (ja) * 2003-01-22 2004-08-12 Toyota Motor Corp 内燃機関用ピストン
JP2004225596A (ja) * 2003-01-22 2004-08-12 Toyota Motor Corp 内燃機関用ピストン
CN2648088Y (zh) * 2003-09-17 2004-10-13 重庆宗申技术开发研究有限公司 带储油槽的摩托车发动机活塞
JP2004353545A (ja) * 2003-05-29 2004-12-16 Hitachi Unisia Automotive Ltd 内燃機関用ピストン
JP2005002889A (ja) * 2003-06-12 2005-01-06 Nissan Motor Co Ltd エンジン用ピストン
CN1190589C (zh) * 2002-06-10 2005-02-23 吉林大学 裙部表面非光滑活塞
CN2705666Y (zh) * 2004-06-18 2005-06-22 嘉兴梅林精密机械有限公司 活塞
JP2006016982A (ja) * 2004-06-30 2006-01-19 Toyota Motor Corp 内燃機関用ピストン
CN1828033A (zh) * 2005-03-04 2006-09-06 刘建平 内燃机活塞
CN2813902Y (zh) * 2005-06-23 2006-09-06 唐华 微孔润滑式内燃机活塞
CN1959091A (zh) * 2006-08-25 2007-05-09 王德恒 一种内燃机的节油活塞
CN200978732Y (zh) * 2006-11-10 2007-11-21 陈玉进 汽油机防泄漏活塞

Patent Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2184091Y (zh) * 1993-12-11 1994-11-30 毕耜胜 储油活塞
CN2260173Y (zh) * 1996-02-14 1997-08-20 王保东 一种带有自动润滑及调隙装置的活塞组件
CN1157532C (zh) * 2000-04-11 2004-07-14 朱志鸿 二环组高效密封活塞与活塞环组件
CN2423415Y (zh) * 2000-06-14 2001-03-14 韩晓静 延长发动机使用寿命的活塞
CN1190589C (zh) * 2002-06-10 2005-02-23 吉林大学 裙部表面非光滑活塞
JP2004225597A (ja) * 2003-01-22 2004-08-12 Toyota Motor Corp 内燃機関用ピストン
JP2004225596A (ja) * 2003-01-22 2004-08-12 Toyota Motor Corp 内燃機関用ピストン
CN2617938Y (zh) * 2003-05-05 2004-05-26 田治平 摩托车活塞
CN2627228Y (zh) * 2003-05-05 2004-07-21 田治平 四冲程摩托车活塞
JP2004353545A (ja) * 2003-05-29 2004-12-16 Hitachi Unisia Automotive Ltd 内燃機関用ピストン
JP2005002889A (ja) * 2003-06-12 2005-01-06 Nissan Motor Co Ltd エンジン用ピストン
CN2648088Y (zh) * 2003-09-17 2004-10-13 重庆宗申技术开发研究有限公司 带储油槽的摩托车发动机活塞
CN2705666Y (zh) * 2004-06-18 2005-06-22 嘉兴梅林精密机械有限公司 活塞
JP2006016982A (ja) * 2004-06-30 2006-01-19 Toyota Motor Corp 内燃機関用ピストン
CN1828033A (zh) * 2005-03-04 2006-09-06 刘建平 内燃机活塞
CN2813902Y (zh) * 2005-06-23 2006-09-06 唐华 微孔润滑式内燃机活塞
CN1959091A (zh) * 2006-08-25 2007-05-09 王德恒 一种内燃机的节油活塞
CN200978732Y (zh) * 2006-11-10 2007-11-21 陈玉进 汽油机防泄漏活塞

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