About 73 results
https://drivepatents.com/patents/981106 · 11 Dec 2013
Provided is an internal combustion engine including two intake valves for each cylinder, the internal combustion engine including: a fixed cam for driving one of the two intake valves with a lift characteristic having a valve opening timing close to a top ...
https://drivepatents.com/patents/986757 · 18 Sep 2013
A variable valve operating apparatus is provided, which can change a rotational speed of a driven cam lobe for an interval in which a drive camshaft makes one rotation, without complicating an apparatus configuration as much as possible, in the case of usi...
https://drivepatents.com/patents/984200 · 4 Sep 2013
An object of this invention is, when performing a fuel-cut operation, to reduce the amount of oil consumption and also suppress electric power consumption and vibrations at cranking time, even in a state in which intake valves are stopped in a closed state...
https://drivepatents.com/patents/993590 · 23 Jan 2013
Provided is a control apparatus for an internal combustion engine that can suppress blowback of in-cylinder residual gas to an intake passage when reverting from a fuel-cut operation accompanied by valve stopping control of an intake valve while suppressin...
https://drivepatents.com/patents/994368 · 2 Jan 2013
A continuously variable valve timing (CVVT) system which may be operated in cooperation with a continuously variable valve lift (CVVL) engine may be included. A reference position of a suction CVVT may be set by a spring. In addition, a method for controll...
https://drivepatents.com/patents/998394 · 12 Sep 2012
An IIS system (2) that performs control related to intermittent stopping of engine operation by idling stop control is applied to an internal combustion engine including a VVT mechanism (6) that makes the valve timing of an engine valve variable and has an...
https://drivepatents.com/patents/1000464 · 11 Jul 2012
In a hydraulic variable valve timing mechanism comprising a lock pin that locks a vane rotor and a housing against relative rotation in the most retarding phase, a specified angle ± is set so that release of the lock pin is started at a time when positive...
https://drivepatents.com/patents/1003074 · 25 Apr 2012
A start control device for an internal combustion engine 1 controls a starting manner of the engine 1 having a hydraulic variable mechanism 30, which fixes valve timing at a middle angle. Specifically, with the engine speed during cranking when the valve t...
https://drivepatents.com/patents/1011366 · 29 Jun 2011
The internal combustion engine (1) has multiple cylinders (4), an inlet valves (5) and outlet valves (6), where the inlet valves and the outlet valves are formed for controlling load changeover process of the cylinders. A valve train (7) is provided for ac...
https://drivepatents.com/patents/1012806 · 25 May 2011
An inter-bank variation detection device of an internal combustion engine provided with a valve opening characteristic setting means (57) for changing the valve opening characteristic of an intake valve (9) for each of the cylinders (#1 to #4) or each of t...