| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 123286000 | Having specific connecting passage means between precombustion and main combustion chambers | 7 |
| 20130276745 | INTERNAL COMBUSTION ENGINE - An internal combustion engine includes a cylinder head having a cylinder head base, a cylinder wall and a piston which is movable along a cylinder axis, and having a piston crown. A main combustion chamber is formed between the cylinder head base, the cylinder wall and piston crown. A precombustion chamber is inserted into a bore of the cylinder head and is fixed relative to the bore in the circumferential direction of the bore. The axis of the bore is at least substantially parallel to the cylinder axis, and a precombustion-type combustion chamber is formed in the precombustion chamber. At least one ring of transfer openings connects the precombustion-type combustion chamber to the main combustion chamber and in each case the angle which the transfer opening encloses with the cylinder axis differs for at least two transfer openings of the at least one ring. | 10-24-2013 |
| 20160069251 | PRESSURE-LIMITING DEVICE FOR PRE-COMBUSTION CHAMBER - An engine with a main combustion chamber and a pre-combustion chamber assembly is provided. The pre-combustion chamber assembly includes a pre-combustion chamber, a pressure-limiting device, and a fluid conduit. The pressure-limiting device includes a first end and a second end. The first end includes a spring. The second end is exposed to the pre-combustion chamber. The pressure-limiting device is operable in a passive state and an active state. The fluid conduit is disposed between the main combustion chamber and the first end of the pressure-limiting device to facilitate fluid communication between the main combustion chamber and the pressure-limiting device. The pressure-limiting device is actuated to the active state when fluid pressure in the pre-combustion chamber reaches a threshold value during pre-chamber combustion. In the active state, the pressure-limiting device moves away from the pre-combustion chamber, to increase a volume in the pre-combustion chamber. | 03-10-2016 |
| 123288000 | Having fuel, a combustible mixture, or air added in the connecting passage | 1 |
| 20090050103 | SPLIT-CYCLE AIRCRAFT ENGINE - A split-cycle aircraft engine includes a crankshaft rotatable about a crankshaft axis. A power piston is slidably received within a power cylinder and is operatively connected to the crankshaft such that the power piston reciprocates through an expansion stroke and an exhaust stroke during a single rotation of the crankshaft. A compression piston is slidably received within a compression cylinder and is operatively connected to the crankshaft such that the compression piston reciprocates through an intake stroke and a compression stroke during a single rotation of the crankshaft. A gas crossover passage operatively interconnects the compression cylinder and the power cylinder. An air reservoir is operatively connected to the gas crossover passage by a reservoir passage. The air reservoir is selectively operable to receive and deliver compressed air. The engine is mounted to an aircraft and the air reservoir is disposed within the aircraft. | 02-26-2009 |
| 123292000 | With valve means or variable orifice means in the passage | 4 |
| 20140158084 | Six-Stroke Engine System with Blowdown Exhaust Recirculation - A six-stroke engine system including an engine with a combustion chamber including an exhaust valve that expels exhaust gasses during an exhaust stroke, and a blowdown exhaust valve that expels blowdown exhaust gasses during recompression. An intake line directs air into the combustion chamber, and an exhaust line directs exhaust gasses from combustion chamber. A blowdown exhaust line directs blowdown exhaust gasses out of the combustion chamber and into the intake line. The blowdown exhaust gasses are expelled through the blowdown exhaust valve during recompression, and exhaust gasses are expelled through the exhaust valve during the exhaust stroke. | 06-12-2014 |
| 20140261299 | INTERNAL COMBUSTION ENGINE - An internal combustion engine is described that includes an expansion cylinder adjacent to a first combustion cylinder (or power cylinder). Combustion gases from the first cylinder are directed to the expansion cylinder to act on the piston in the expansion cylinder. The expansion cylinder has a larger bore (i.e. larger diameter piston) and/or a longer stroke than the first cylinder. The longer stroke also results in a much larger crankshaft arm resulting in a significantly improved mechanical advantage (i.e. torque). In addition, the expansion cylinder includes a check valve that is designed to automatically open the expansion chamber to atmosphere if a negative pressure develops due to the varying amount of exhaust gases at different speeds. In one embodiment, two power cylinders can be connected to one expansion cylinder. | 09-18-2014 |
| 20160010538 | PRECOMBUSTION-CHAMBER FUEL SUPPLY DEVICE FOR GAS INTERNAL COMBUSTION ENGINE | 01-14-2016 |
| 20160069250 | CONTROL VALVE FOR PRE-COMBUSTION CHAMBER ASSEMBLY - An engine with a cylinder, a cylinder head, a main combustion chamber, a pre-combustion chamber assembly, and a control valve is provided. The main combustion chamber is disposed in the cylinder. The pre-combustion chamber assembly is disposed in the cylinder head. The pre-combustion chamber assembly includes a pre-chamber portion in fluid communication with the main combustion chamber. The pre-combustion chamber assembly includes a tip portion, which includes at least one orifice to allow fluid communication between the main combustion chamber and the pre-chamber portion. The control valve is accommodated in the pre-chamber portion and is mechanically switchable between a closed position and an open position. The control valve is adapted to be switched to the closed position when fluid pressure in the pre-chamber portion reaches a peak pressure value. The control valve then blocks fluid communication between the main combustion chamber and the pre-chamber portion. | 03-10-2016 |
