-
-
-
-
4.发明公开
公开(公告)号：EP3292290A1
公开(公告)日：2018-03-14
申请号：EP16725893.8
申请日：2016-05-02
申请人： Emak S.p.A.
IPC分类号： F02D41/06 , F02D41/14 , F02D41/34 , F02D35/00 , F02D35/02 , F02D41/24 , F02D41/28 , F02D41/22
CPC分类号： F02D35/0053 , F02D35/021 , F02D41/06 , F02D41/1454 , F02D41/1482 , F02D41/22 , F02D41/2454 , F02D41/34 , F02D2041/286 , F02D2400/04 , F02D2400/06 , Y02T10/44
摘要： A control system for carburation of an internal combustion engine in use conditions comprising following activities: starting the engine with a value of λ equals λ0=λT; constructing a curve ci(α) of the ionization current α as a function of the angular position a of the crank shaft; selecting, on this curve ci(α), a number of points at intervals Δα of the rotation angle a; calculating value z, equal to integral from 0 to 360° of the curve ci(α), is done by summing products Δα×ci for all preselected points; interrupting supply of fuel for some cycles in order to externally modify factor λ0 and take it to value λ1; for value λ1 constructing curve ci(α) and calculating value z1; calculating difference Δz=z1−z0, and if the difference is >Δzref in absolute value, intervening on carburation by increasing the quantity of fuel injected in a case of a positive difference (lean mixture) and by reducing the quantity of fuel injected in a case of a negative difference (rich mixture).
-
-
-
公开(公告)号：EP3510265A1
公开(公告)日：2019-07-17
申请号：EP17755254.4
申请日：2017-07-25
申请人： Emak S.p.A.
摘要： Herein described is a two-stroke internal combustion engine (100), comprising: a cylinder (135) having a pre-set central axis (B); a piston (145) slidably coupled to the cylinder (135) and suitable to divide the interior volume thereof into two distinct chambers, including a combustion chamber (150) and a pumping chamber (155); an intake duct (160) communicating with the pumping chamber (155); an exhaust duct (170) communicating with the combustion chamber (150); and at least one scavenging duct (180) suitable to place the pumping chamber (155) in communication with the combustion chamber (150); wherein said scavenging duct (180) comprises a terminal portion (190) leading to the combustion chamber (150) which extends with configuration diverging from an inlet section (200) up to an outlet section (205) obtained on a lateral surface of the cylinder (135).
-
公开(公告)号：EP2232042A1
公开(公告)日：2010-09-29
申请号：EP09700364.4
申请日：2009-01-07
申请人： Emak S.p.A.
发明人： FERRARI, Marco
IPC分类号： F02M35/10
CPC分类号： F02M35/10196 , F02M17/34 , F02M35/10019 , F02M35/10275
摘要： A device for supplying an internal combustion engine (1 ), comprising a carburettor(72) and an air filter (71 ) installed on an air intake line (70), through which the air filtered by the filter (71 ) is conveyed into the carburettor (72), and an anti-backflow element (8) located in series on the air intake line (70) between the carburettor (72) and the air filter (71 ), in which the anti- backflow element (8) exhibits an external casing (80) comprising a perimetral band (81 ) including at least a portion substantially circular in development closed by two side walls (82, 83), such as to internally define at least a compartment (84) in communication with the carburettor (72) through a duct (85) opening in the perimeteral band (81 ) and developing tangentially relative to the circularly developing portion, the compartment (84) also in communication with the air filter (71 ) through a first duct (86) opening in one of the side walls (82, 83).
-
-
-
-
-
-
-
-
搜索结果
14 条记录 (耗时 0.011 秒)
