About 54 results
https://drivepatents.com/patents/1098730 · 29 Jan 2003
Electromagnetic actuator (4) for a fuel injector (1); the electromagnetic actuator (4) is provided with an electromagnet (11), which has a fixed magnetic core (17) which is delimited at the base by a first annular contact surface (18), and with an anchor (...
https://drivepatents.com/patents/1100462 · 13 Nov 2002
Fuel injector (1; 101; 201) provided with a piezoelectric actuator (9; 109; 209), a valve (6, 106; 206) activated by the piezoelectric actuator (9; 109; 209) and regulating a fuel supply that flows in a working direction (3; 103; 203), and a mechanical tra...
https://drivepatents.com/patents/1100465 · 13 Nov 2002
A fuel injector (1; 101; 201) having a piezoelectric actuator (9; 109; 209), which activates a shutter (6; 106; 206) to move the shutter (6; 106; 206) in a work direction (3; 103; 203) between a closed position and an open position; the piezoelectric actua...
https://drivepatents.com/patents/1102501 · 14 Aug 2002
Method for estimating the filling of a cylinder (2) in an internal combustion engine (1) provided with cam stroke variation system (10). A theoretical induction efficiency ( eta thr) which the cylinder (2) would have if it operated with an optimal inductio...
https://drivepatents.com/patents/1103103 · 17 Jul 2002
Method for estimation of the quantity of fresh air (maira, mairs) present in the intake and exhaust manifolds (3, 5) of an internal combustion engine (1) with a recirculation circuit (9, 10), by an observer (O), applied to a system (S) of the third order, ...
https://drivepatents.com/patents/1104818 · 2 May 2002
Method for correction of the spark advance for an internal combustion engine (1) with a continuous phase transformer at the intake and/or exhaust; for each cylinder (2), the method consists of calculating a theoretical value (AAth) of the optimum spark adv...
https://drivepatents.com/patents/1104814 · 2 May 2002
A method for the performance of the gear disengagement in a servo-controlled manual gear change (5), according to which an oscillation is generated with respect to the angular speed ( omega 1(t)) of a primary shaft (7) of the gear change (5) by abruptly op...
https://drivepatents.com/patents/1104815 · 2 May 2002
Method for restoration of the drive torque during a change of gear, wherein the clutch (4) is closed in order to adjust the angular speed ( omega m) of the drive shaft (10) to match the angular speed ( omega 1) of the primary shaft (7) of the gearbox (5); ...
https://drivepatents.com/patents/1104813 · 2 May 2002
A method of updating the transmissibility function (Tcl(x)) of a clutch (4) during the final stage of a gear change, in which the clutch (4) is closed to cause the angular speed ( omega m) of the drive shaft (10) to equal the angular speed ( omega 1) of th...
https://drivepatents.com/patents/1104812 · 2 May 2002
Method for reclosure of the clutch (4) during a change of gear, wherein the clutch (4) is closed in order to adjust the angular speed ( omega m) of the drive shaft (10) to match the angular speed ( omega 1) of the primary shaft (7) of the gearbox (5); the ...