About 20 results
https://drivepatents.com/patents/981227 · 4 Dec 2013
A control device for an internal combustion engine includes: a camshaft of the internal combustion engine; a plurality of plane cam shape portions; at least one transitional shape portion; a cam switching mechanism; a cam position sensor; and a control sec...
https://drivepatents.com/patents/984134 · 4 Sep 2013
The present invention relates to a structure of oil control valve for variable lift of engine valve. The engine (3) at least comprises a crankcase (31), a cylinder block (32) mounted on the crankcase (31), and a cylinder head (33) mounted on the cylinder b...
https://drivepatents.com/patents/1010138 · 17 Aug 2011
A variable valve device and a method of controlling the variable valve device, wherein, in order to prevent a shortage of oil film in a spool section, only the spool of a solenoid on/off valve is moved at a timing not affecting operation of an air intake v...
https://drivepatents.com/patents/1086636 · 9 Jun 2004
A main CPU determines whether or not there is a request for one valve driving based on an engine operating state such as an engine speed and a load factor, with reference to a control map (S10). When it is determined that there is a request for one valve d...
https://drivepatents.com/patents/1087661 · 28 Apr 2004
A control apparatus is provided for a valve actuating system (1) which is operable to lift an intake valve (2) or an exhaust valve (37) of an internal combustion engine and includes a lift characteristic changing mechanism for changing a lift characteristi...
https://drivepatents.com/patents/1088079 · 14 Apr 2004
An engine has four cylinders (2A-2D) each with a piston and a combustion chamber with a spark plug connected to the ignition circuit, while fuel is injected by an injector (9) with a needle valve and a solenoid. An oxygen sensor (23) connected to a three-w...
https://drivepatents.com/patents/1088210 · 7 Apr 2004
An engine has four cylinders (2A-2D) each with a piston and a combustion chamber with a spark plug connected to the ignition circuit, while fuel is injected by an injector (9) with a needle valve and a solenoid. An oxygen sensor (23) connected to a three-w...
https://drivepatents.com/patents/1106634 · 13 Feb 2002
There is provided a fuel injection control system and method for an internal combustion engine including two types of variable valve mechanisms capable of changing a camp phase and a cam profile, respectively, which control system and method are capable of...
https://drivepatents.com/patents/1110051 · 26 Sep 2001
The invention relates to a spark-ignition internal combustion engine comprising a combustion chamber, a fuel injection means (13) for injecting fuel, an air amount control means (28) for controlling intake air amount into a combustion chamber (7), an ignit...
https://drivepatents.com/patents/1112678 · 30 May 2001
The valve control uses camshafts (11,12) for operation of the i.c. engine gas changing valves (7,8), with one or more valves having a stroke which is altered via a switch element (15) having a switching time which is dependent on the engine revs and detect...