TH70838B - Combustion chamber structure for internal combustion engines - Google Patents

Abstract

DC60 (14/10/57) in order to provide a combustion chamber structure for the internal combustion engine to prevent Knock in the two-piece internal combustion engine. In an internal combustion engine with intake valve openings (42) and exhaust flap openings (43) positioned opposite each other across the cylinder axis (C), the center axis of the cylinder size. (16b) In the ceiling surface (50) of the cylinder head (17) and the opening facing the combustion chamber (40), the upper surface (60t) of the piston (60) there is a piston recess (61) where Was formed by making a niche The inside of the piston-side compression area (62) that has formed along the perimeter along the outer perimeter of the The top surface (60t) and the piston nook (61) are formed in an elliptical shape that surrounds the It is important the umbrella part (46p) of the exhaust flap (46) and the umbrella (47p) of the exhaust flap (47) on both sides in the main axis direction when viewed in the axis direction.

Claims (1)

Disclaimers (all) which will not appear on the advertisement page: Edit 14/08/2018 Page 1 of 2 pages. 1. Combustion chamber structure for internal combustion engine Where the combustion chamber (40) has been built between the top surface (60t) of the fitted piston (60) can be slid in the cylinder bore (16b) of the block (16) and the floor. The ceiling surface (50) of the cylinder head (17) is opposite the top surface (60t), the intake valve opening (42) and the exhaust flap opening (43) positioned opposite. Each other across the cylinder axis (C), which is the center axis of the cylinder port (16b) in the ceiling surface (50) of the open cylinder head (17) facing the combustion chamber (40) and the intake manifold (44 ) And the exhaust port (45) can be extended from the valve opening (42) and the exhaust valve opening (43) respectively. Which were opened and closed by the intake valve (46) and the exhaust valve (47) respectively. While bowing in view Lateral, in a direction apart, along the directional cross section connecting the center of the intake flap opening (42) and the center of the flap flap opening (43) as viewed from the cylinder axis direction. Where the upper surface (60t) of the piston (60) is formed, with the piston niche (61) being formed by the internal recess of the piston compression area ( 62) formed Along the perimeter of the upper surface (60t), the recess (61a) of the piston recess (61) is formed flat, the ceiling surface (50) of the cylinder head. (17) has been formed with a cylinder head extrusion surface (52) formed as opposed to the piston compression surface (62) of the piston (60) a piston side compression surface. (62) and the cylinder head compression surface (52) are parallel to each other and Forms a tapered surface that is tilted towards the side of the cylinder head (17) from the outer perimeter to the inside and the piston recess (61) has been formed in a significantly symmetrical oval shape around. The main axis and enclosed direction is significant, the umbrella (46p) of the intake valve (46) and umbrella (47p) of the exhaust flap (47) on both sides in the main axis direction when viewed in the axis direction. -------------------------------------------------- -------------------------------------------------- No claim