About 36 results
https://drivepatents.com/patents/1096526 · 7 May 2003
An intake-air quantity control apparatus for an internal combustion engine and a method for controlling an intake-air quantity entering each of engine cylinders for a computer-controlled internal combustion engine with a variable valve timing system associ...
https://drivepatents.com/patents/1096263 · 7 May 2003
A valve of an internal combustion engine includes a valve body movable between a fully opened position and a fully closed position, an armature coupled to the valve body, a pair of springs urging the valve body, and a pair of electromagnets. Each electroma...
https://drivepatents.com/patents/1097334 · 26 Mar 2003
Method for piloting electromagnetic actuators (6) for the control of the valves of an engine; each electromagnetic actuator (6) is provided with at least one respective electromagnet (7), which is piloted by a common piloting device (5) by means of the sup...
https://drivepatents.com/patents/1097835 · 5 Mar 2003
The device uses both coils (4,5) of a valve (3) alternately to move the object (1) or armature (2) between the coils and to detect the position of the object or armature. The object or armature is mounted on a shaft (6) and the coils are mounted in at leas...
https://drivepatents.com/patents/1100074 · 4 Dec 2002
A servo drive for a valve in an internal combustion engine has an armature (4) fitted at right angles to the valve stem (3). The armature is held midway between two solenoids (6,7) by opposing springs and is displaced in either direction by the solenoids. ...
https://drivepatents.com/patents/1100207 · 27 Nov 2002
In the present apparatus, a bypass exhaust pipe which communicates between the cylinder bore and the exhaust passage is disposed in the region of bottom dead center of the piston in an engine that comprises a piston that performs a reciprocating motion bet...
https://drivepatents.com/patents/1100891 · 23 Oct 2002
The invention relates to an electromagnetic actuator device with a movable element in which the movable element moves as a function of the current intensity in the electromagnetic coil. This device comprises a feedback regulation circuit using at least one...
https://drivepatents.com/patents/1101668 · 18 Sep 2002
A target value displacement amount (xt) regarding a displacement amount (x) when displacing a valve body (19) from a fully closed position to a fully open position or from the fully open position to the fully closed position is memorized in a memory of an ...
https://drivepatents.com/patents/1102170 · 28 Aug 2002
A combustion control apparatus for an engine (1) having a variable valve timing mechanism (13a, 13b) is disclosed which is capable of varying valve timings of an exhaust valve (7) and an intake valve (6), which is adapted to establish a combustion mode to ...
https://drivepatents.com/patents/1102470 · 14 Aug 2002
Gas shuttle valves each have their electromagnetic valve drives (10,12,14,16,18,20). In each valve, an armature (50) linked to a valve shaft is moved to and from between two electromagnetic coils (52,54) and against the force from valve springs (56,58) all...