BRPI0704217A - internal combustion engine - Google Patents
internal combustion engineInfo
- Publication number
- BRPI0704217A BRPI0704217A BRPI0704217A BRPI0704217A BR PI0704217 A BRPI0704217 A BR PI0704217A BR PI0704217 A BRPI0704217 A BR PI0704217A BR PI0704217 A BRPI0704217 A BR PI0704217A
- Authority
- BR
- Brazil
- Prior art keywords
- decompression
- cam
- camshaft
- centrifugal weight
- engine
- Prior art date
Links
Landscapes
- Valve Device For Special Equipments (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
MOTOR DE COMBUSTãO INTERNA. O Objetivo da presente invenção é reduzir um desequilíbrio rotacional de um eixo de comando (C), que é causado por um sistema de descompressão (D), e também aperfeiçoar a precisão na abertura e no fechamento de uma válvula de motor executados por um came de válvula. Como meio para solução a invenção sugere um motor de combustão interna (E) que inclui um sistema de descompressão (D) que inclui um peso centrífugo (41) e um came de descompressão (43). O peso centrífugo (41) é oscilavelmente sustentado em um eixo de comando (C) de um sistema de válvulas (20). O came de descompressão (43) é acionado pelo peso centrífugo (41) oscilante. O carne de descompressão (43) ocupa uma posição de descompressão, onde o came de descompressão (43) abre a válvula de motor, durante um curso de compressão, de modo que uma pressão de compressão em um espaço de combustão seja reduzida no momento da partida do motor (E) quando o peso centrífugo (41) estiver na posição do lado de baixa velocidade. O came de descompressão (43) ocupa uma posição de descompressão, onde o came de descompressão (43) não abre a válvula de motor (E), depois da partida do motor quando o peso centrífugo (41) estiver em urna posição do lado de alta velocidade. Um contrapeso (60) é provido no eixo de comando (C). O contrapeso (60) reduz um desequilíbrio rotacional do eixo de comando (C), que é causado pelo peso centrífugo (41) na posição do lado de alta velocidade. O contrapeso (60) inclui uma pluralidade de porções de peso (61 a 63), que são espaçadas entrei si na direção axial do eixo de comando (C).Internal combustion engine. The object of the present invention is to reduce a rotational imbalance of a camshaft (C) which is caused by a decompression system (D), and also to improve the accuracy of opening and closing of a cam valve by a cam. valve As a solution for the invention the invention suggests an internal combustion engine (E) including a decompression system (D) including a centrifugal weight (41) and a decompression cam (43). The centrifugal weight (41) is oscillably supported on a camshaft (C) of a valve system (20). The decompression cam (43) is driven by the oscillating centrifugal weight (41). The decompression cam 43 occupies a decompression position where the decompression cam 43 opens the engine valve during a compression stroke, so that a compression pressure in a combustion space is reduced at the time of decompression. motor start (E) when centrifugal weight (41) is in the low speed side position. The decompression cam (43) occupies a decompression position where the decompression cam (43) does not open the engine valve (E) after starting the engine when the centrifugal weight (41) is in a position on the side of the engine. high speed. A counterweight (60) is provided on the camshaft (C). Counterweight (60) reduces a rotational camshaft imbalance (C), which is caused by centrifugal weight (41) in the high speed side position. Counterweight (60) includes a plurality of weight portions (61 to 63) which are spaced apart in the axial direction of the camshaft (C).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006316910A JP4540655B2 (en) | 2006-11-24 | 2006-11-24 | Internal combustion engine with decompression device |
Publications (1)
Publication Number | Publication Date |
---|---|
BRPI0704217A true BRPI0704217A (en) | 2008-07-15 |
Family
ID=39479863
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0704217 BRPI0704217A (en) | 2006-11-24 | 2007-11-21 | internal combustion engine |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP4540655B2 (en) |
CN (1) | CN101187320B (en) |
AR (1) | AR063879A1 (en) |
BR (1) | BRPI0704217A (en) |
PE (1) | PE20081206A1 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5456612B2 (en) * | 2010-07-30 | 2014-04-02 | 本田技研工業株式会社 | Decompression device for internal combustion engine |
TWI575151B (en) * | 2014-01-29 | 2017-03-21 | Kwang Yang Motor Co | Decompression device for internal combustion engine |
CN104847441A (en) * | 2014-02-19 | 2015-08-19 | 光阳工业股份有限公司 | Decompressor of internal combustion engine |
JP2015224579A (en) | 2014-05-27 | 2015-12-14 | ヤマハ発動機株式会社 | Engine and vehicle |
JP2015224577A (en) | 2014-05-27 | 2015-12-14 | ヤマハ発動機株式会社 | Engine and vehicle |
JP2015224578A (en) | 2014-05-27 | 2015-12-14 | ヤマハ発動機株式会社 | Engine and vehicle |
JP2015224580A (en) | 2014-05-27 | 2015-12-14 | ヤマハ発動機株式会社 | Engine and vehicle |
CN105370338B (en) * | 2014-08-22 | 2018-09-25 | 牛刚学 | The executing agency of internal-combustion engine reliever |
CN112384683B (en) * | 2018-07-05 | 2022-08-02 | 本田技研工业株式会社 | Decompression device of engine and engine |
JP6751449B2 (en) * | 2018-10-29 | 2020-09-02 | 株式会社小松製作所 | cylinder head |
TWM580123U (en) * | 2018-11-30 | 2019-07-01 | 光陽工業股份有限公司 | Decompression device of internal combustion engine |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62284912A (en) * | 1986-06-03 | 1987-12-10 | Sanshin Ind Co Ltd | Automatic pressure reducing device for internal combustion engine |
DE3803683A1 (en) * | 1988-02-07 | 1989-08-17 | Emitec Emissionstechnologie | BUILT SHAFT, IN PARTICULAR CAMSHAFT, CRANKSHAFT OR GEAR SHAFT |
GB9601323D0 (en) * | 1996-01-23 | 1996-03-27 | Decorule Ltd | Reciprocatory machine |
DE19831333A1 (en) * | 1998-07-13 | 2000-01-27 | Neumayer Erich Gmbh Co Kg | Mounting components on hollow shaft, especially cams on camshaft, by introducing supports between components fitted onto shaft prior to shaft expansion step |
DE10101539C2 (en) * | 2001-01-15 | 2003-01-23 | Neumayer Erich Gmbh Co Kg | Process for manufacturing a built shaft |
JP4172186B2 (en) * | 2002-02-27 | 2008-10-29 | スズキ株式会社 | Engine decompression device |
-
2006
- 2006-11-24 JP JP2006316910A patent/JP4540655B2/en not_active Expired - Fee Related
-
2007
- 2007-11-20 CN CN2007101927880A patent/CN101187320B/en active Active
- 2007-11-20 PE PE2007001611A patent/PE20081206A1/en not_active Application Discontinuation
- 2007-11-21 AR ARP070105162 patent/AR063879A1/en active IP Right Grant
- 2007-11-21 BR BRPI0704217 patent/BRPI0704217A/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
JP4540655B2 (en) | 2010-09-08 |
JP2008128171A (en) | 2008-06-05 |
CN101187320B (en) | 2011-10-12 |
CN101187320A (en) | 2008-05-28 |
AR063879A1 (en) | 2009-02-25 |
PE20081206A1 (en) | 2008-10-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B03A | Publication of an application: publication of a patent application or of a certificate of addition of invention | ||
B06A | Notification to applicant to reply to the report for non-patentability or inadequacy of the application according art. 36 industrial patent law | ||
B11B | Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements |