JPH0292029U

JPH0292029U -

Info

Publication number: JPH0292029U
Application number: JP17103488U
Authority: JP
Priority date: 1988-12-29
Filing date: 1988-12-29
Publication date: 1990-07-20

Description

[Brief explanation of the drawing]

第１図は本考案吸気量増大装置の一実施例の原
理的説明図で、吸気時における同内燃機関要部の
縦断面図、第２図は同じく排気時における要部縦
断面図、第３図は本考案に係る内燃機関のシリン
ダヘツドの水平断面図で、一点鎖線（縦線）を中
心に左右で断面個所を異ならしめたもの、第４図
は第３図のイ―ロ線断面相当の実機組立図、第５
図は本考案に係る羽毛弁の正面図、第６図は本考
案の他の実施例に係るシリンダヘツドの水平断面
図、第７図は他の実施例に使用される羽毛弁の斜
視図、第８図は従来の内燃機関の弁装置付近の断
面図、第９図は従来の吸、排気弁の配置を示す平
面略示図、第１０図、第１１図は本出願人が提案
した前記切換弁を備えた内燃機関の原理的説明図
で、第１０図は吸気時における同内燃機関の要部
の縦断面図であり、第１１図は同じく排気時にお
ける要部の縦断面図である。１０……シリンダヘツド、１１……シリンダブ
ロツク、１３……シリンダ、１４……ピストン、
１５……燃焼室、１６……吸気通路、１７，１７
′……排気通路、１８……吸気弁、１９……排気
弁、２７，４３……補助吸気路、２８，４５……
第１羽毛弁、２９，４６……第２羽毛弁、３０ａ
，３０ｂ……弁座、３１……筒形ケース、３６…
…カム軸、４０……排気カム、４０ａ……排気カ
ム部、４０ｂ……吸気用排気弁開カム、４１……
ロツカアーム軸、４２……ロツカアーム、４４…
…連結個所、４８……羽毛弁の支持体。 Fig. 1 is a principle explanatory diagram of an embodiment of the intake air amount increasing device of the present invention, and Fig. 2 is a longitudinal sectional view of the main parts of the internal combustion engine during intake, Fig. 2 is a longitudinal sectional view of the main parts during exhaustion, and Fig. 3 is a longitudinal sectional view of the main parts of the internal combustion engine during intake. The figure is a horizontal cross-sectional view of the cylinder head of an internal combustion engine according to the present invention, with the cross-sectional parts different on the left and right with the dashed-dotted line (vertical line) as the center. Actual machine assembly drawing, No. 5
The figure is a front view of a feather valve according to the present invention, FIG. 6 is a horizontal sectional view of a cylinder head according to another embodiment of the present invention, and FIG. 7 is a perspective view of a feather valve used in another embodiment. FIG. 8 is a sectional view of the vicinity of a conventional internal combustion engine valve device, FIG. 9 is a schematic plan view showing the arrangement of conventional intake and exhaust valves, and FIGS. 10 and 11 are This is a principle explanatory diagram of an internal combustion engine equipped with a switching valve. FIG. 10 is a longitudinal cross-sectional view of the main parts of the internal combustion engine during intake, and FIG. 11 is a longitudinal cross-sectional view of the main parts during exhaust. . 10...Cylinder head, 11...Cylinder block, 13...Cylinder, 14...Piston,
15... Combustion chamber, 16... Intake passage, 17, 17
'... Exhaust passage, 18... Intake valve, 19... Exhaust valve, 27, 43... Auxiliary intake passage, 28, 45...
First feather valve, 29, 46...Second feather valve, 30a
, 30b... Valve seat, 31... Cylindrical case, 36...
...Camshaft, 40...Exhaust cam, 40a...Exhaust cam part, 40b...Intake exhaust valve opening cam, 41...
Rotsuka arm shaft, 42...Rotsuka arm, 44...
... Connection point, 48 ... Feather valve support.

Claims

[Scope of utility model registration request]

An auxiliary intake passage connected to the exhaust passage is provided in the cylinder head, and a first feather valve that opens only during intake is provided on the intake introduction side of the connection point between the auxiliary intake passage and the exhaust passage, and a first feather valve is provided on the outlet side of the exhaust passage. An intake air amount increasing device for an internal combustion engine, characterized in that a second feather valve that opens only during exhaust is installed in each, and the exhaust valve is configured to open in synchronization with the intake valve.