Patent application number | Description | Published |
20100282216 | SPARK IGNITION TYPE INTERNAL COMBUSTION ENGINE - Provided is a spark ignition type internal combustion engine comprising a variable compression ratio mechanism (A) capable of changing a mechanical compression ratio, and a variable valve timing mechanism (B) capable of controlling the closing timing of an intake valve. At an engine low-load running time, the mechanical compression ratio is made so higher than that at an engine high-load running time that the expansion ratio may be 20 or higher. In case the vacuum in an engine intake passage is lower than the required vacuum, the opening of a throttle valve ( | 11-11-2010 |
20120017876 | HIGH EXPANSION RATIO INTERNAL COMBUSTION ENGINE - A high expansion ratio internal combustion engine includes: a variable compression ratio mechanism that varies a mechanical compression ratio of the internal combustion engine; and a variable valve train in which some valve(s) of a plurality of intake valves is phase-variable and the remaining valve(s) is phase-fixed, the variable valve train being configured such that a working angle of the phase-variable intake valve is larger than a working angle of the phase-fixed intake valve, wherein a valve-open timing of the phase-variable intake valve is retarded after a valve-open timing of the phase-fixed intake valve when the internal combustion engine is under low-load operating state. | 01-26-2012 |
20120210957 | VARIABLE COMPRESSION RATIO V-TYPE INTERNAL COMBUSTION ENGINE - The present variable compression ratio V-type internal combustion engine is a variable compression ratio V-type internal combustion engine which joins cylinder blocks of two cylinder groups and makes the joined cylinder block | 08-23-2012 |
20120210979 | INTAKE APPARATUS OF ENGINE - An intake apparatus of an engine includes: a first intake passage supplying fresh air to a cylinder; a second intake passage arranged near the first intake passage, and supplying fresh air to the cylinder; a first intake valve opening and closing the first intake passage at an aperture of the first intake passage; a second intake valve opening and closing the second intake passage at an aperture of the second intake passage. An opening timing of the first intake valve of the intake apparatus advances relative to a top dead center, and a valve lift amount of the first intake valve differs from that of the second intake valve, and there is a period while the valve lift amount of the first intake valve is larger than that of the second intake valve, in an intake stroke. | 08-23-2012 |
20120234274 | SPARK IGNITION TYPE INTERNAL COMBUSTION ENGINE - A spark ignition type internal combustion engine includes a plurality of cylinders and can stop combustion in part of these cylinders. Further, the spark ignition type internal combustion engine comprises a variable compression ratio mechanism (A) which can change an mechanical compression ratio, and a variable valve timing mechanism (B) which can control a closing timing of an intake valve. When idling part of the cylinders or increasing idled cylinders, the closing timing of an intake valve ( | 09-20-2012 |
20120260890 | VARIABLE COMPRESSION RATIO V-TYPE INTERNAL COMBUSTION ENGINE - The present variable compression ratio V-type internal combustion engine is a variable compression ratio V-type internal combustion engine which joins cylinder blocks of two cylinder groups and makes the joined cylinder block move relatively to a crankcase, wherein the engine is provided with a first relative movement mechanism which is fastened to a first cylinder group side of the joined cylinder block through a plurality of supports and a second relative movement mechanism which is fastened to a second cylinder group side of the joined cylinder block through a plurality of supports. The number of the supports in each of the first relative movement mechanism and the second relative movement mechanism is made at least a number greater by exactly one than the number of cylinders of the first cylinder group and the second cylinder group, respectively. | 10-18-2012 |
20120316759 | VARIABLE COMPRESSION RATIO V-TYPE INTERNAL COMBUSTION ENGINE - The present variable compression ratio V-type internal combustion engine is a variable compression ratio V-type internal combustion engine which joins cylinder blocks of two cylinder groups and makes the joined cylinder block move relatively to a crankcase, wherein at each relative movement position of the joined cylinder block, the intake valve closing timings of the cylinders are controlled so that the actual compression ratios of the two cylinder groups become equal and thus the temperature difference and pressure difference in the cylinders at top dead center between the two cylinder groups are reduced. | 12-13-2012 |
20120325167 | VALVE DRIVE SYSTEM OF INTERNAL COMBUSTION ENGINE - A valve drive system of internal combustion engine which operates at a high compression ratio cycle, which is provided with an intake cam | 12-27-2012 |
20130220272 | ENGINE CONTROL APPARATUS | 08-29-2013 |