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Patent EP0075643A2 successfully refreshed from Google Patents.
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EP0075643A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Internal combustion engine

Assignee: Kokubo Masao
•
Filing: 1982-03-06
•
Granted: —
•
Expires: 2002-03-06
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Abstract

Abstract Internal combustion engine comprising a cylinder block (1) including a cylinder and a piston (3) reciprocally movable within the cylinder, a cylinder head (2) provided with suction ports (5a, 5b) and an exhaust port (11) open to the cylinder, respectively suction and exhaust valves (6a, 6b, 8) provided adjacent to the upper dead point of the piston. The suction valves (6a, 6b) are disposed substantially uprightly in the direction of movement of the piston (3) and the exhaust valve (8) is inclined with respect to the direction of movement of the piston with the bottom of the exhaust valve directing towards the suction valves to define the combustion chamber (12) between the bottom of the exhaust valve and the upper surface of the head of the piston (3).

Inventors

  • 👤 Motoaki Mimura

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-04 11:47
CPC Classifications
F; F02; F02F; F02F1/00; F02F1/24; F02F1/42; F02F1/4214; F02B; F02B23/00; F02B23/08; F02B1/00; F02B1/02; F02B1/04; F02B2275/00; F02B2275/16; F02B2275/20; F02F2001/244; F02F2001/245; F02F2001/247; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 143 words
. Internal combustion engine comprising a cylinder block including at least one cylinder and a piston received in said cylinder for reciprocal movement therein; and a cylinder head provided with at least one suction port and one exhaust port and including at least. one suction valve disposed within said suction port, and an exhaust valve disposed within said exhaust port, characterized by said suction valve is positioned adjacent to the upper dead point of said reciprocally movable piston and disposed substantially uprightly in the direction of movement of the piston and said exhaust valve is also positioned adjacent to the upper dead point of said reciprocally movable piston and disposed at an inclined angle with respect to the direction of movement of the piston to thereby define a combustion chamber between the bottom of the exhaust valve and the head of the piston.
Claim 2
Dependent Claim 143 words
. Internal combustion engine comprising a cylinder block including at least one cylinder and a piston received in said cylinder for reciprocal movement therein; and a cylinder head provided with at least one suction port and one exhaust port and including at least. one suction valve disposed within said suction port, and an exhaust valve disposed within said exhaust port, characterized by said suction valve is positioned adjacent to the upper dead point of said reciprocally movable piston and disposed substantially uprightly in the direction of movement of the piston and said exhaust valve is also positioned adjacent to the upper dead point of said reciprocally movable piston and disposed at an inclined angle with respect to the direction of movement of the piston to thereby define a combustion chamber between the bottom of the exhaust valve and the head of the piston.
Claim 3
Dependent Claim 62 words
The internal combustion engine as set forth in Claim 1, in which said exhaust valve is disposed at an inclined angle with respect to the direction of movement of said piston with the bottom of the exhaust valve directing towards said suction valve to thereby define a combustion, chamber between the bottom of the exhaust valve and the head of said piston.
Claim 4
Dependent Claim 47 words
The internal combustion engine as set forth in Claim 1 or 2, in which a plurality of suction valves are positioned adjacent to the upper dead point of said piston reciprocally movable within said cylinder and disposed substantially uprightly in the direction of movement of the piston.
Claim 5
Dependent Claim 24 words
The internal comvustion engine as set forth in any one of Claims 1 through 3, in which two suction valves are provided per cylinder.

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