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| Number | Title | Issue Date |
| 4284044 | Combustion chamber of an internal combustion engine An internal combustion engine comprises a first raised portion formed on the inner wall of the cylinder head, a second raised portion formed on the top face of the piston at a position opposite to the first raised portion with respect to the axis of the p... | 08/18/1981 |
| 4280459 | Combustion chamber of an internal combustion engine An internal combustion engine comprises a first raised portion formed on the inner wall of the cylinder head, a second raised portion formed on the top face of the piston at a position opposite to the first raised portion with respect to the axis of the p... | 07/28/1981 |
| 4259933 | Combustion chamber of an internal combustion engine An internal combustion engine comprises a first raised portion formed on the inner wall of the cylinder head, a second raised portion formed on the top face of the piston at a position opposite to the first raised portion with respect to the axis of the p... | 04/07/1981 |
| 4246882 | Combustion chamber for side-valve type internal-combustion engine A side-valve type internal-combustion engine has a cylinder head formed with a recess or recesses each of which forms a combustion chamber with the associated cylinder and which is large enough to permit the alternate flow of suction or exhaust gas betwee... | 01/27/1981 |
| 4191136 | Combustion chamber of an internal combustion engine A combustion chamber of an internal combustion engine which includes a cylinder bore, a cylinder head with a combustion recess and a mating surface with a surface portion overhanging the bore whereby to form a squash portion between the overhanging portio... | 03/04/1980 |
| 4182279 | Combustion chamber of an internal combustion engine Disclosed is a combustion chamber of an internal combustion engine. A first raised portion having a flat bottom is formed on the inner wall of the cylinder head so that a first flat squish area is formed between the flat bottom of the first raised portion... | 01/08/1980 |
| 4170966 | Mixture-compressing internal combustion engine, especially four-cycle engine A mixture-compressing internal combustion engine with a combustion space arranged either in the piston or in the cylinder head and with an ignition source located in the cylinder head; the main volume of the combustion space is thereby delimited by circul... | 10/16/1979 |
| 4162661 | Internal combustion engine with combustion chambers which create a squish and swirl of an air-fuel mixture An internal combustion engine with combustion chambers which create a squish and swirl of an air-fuel mixture is disclosed. In the disclosed engine an inner wall of a cylinder head and a top end of a piston are provided with at least two projected regions... | 07/31/1979 |
| 4041923 | Internal combustion engine of lean air-fuel mixture combustion type An internal combustion engine of lean air-fuel mixture combustion type comprising a subsidiary combustion chamber opening into a main combustion chamber via a connecting passage. A raised portion is formed on the top surface of the piston. The raised port... | 08/16/1977 |
