About 54 results
https://drivepatents.com/patents/1076909 · 15 Jun 2005
An air supply unit (1) for an internal combustion engine; the air supply unit (1) is provided a number of butterfly valves (3) and a distributor device (6), the latter being provided, for each butterfly valve (3), with a distribution duct (10) capable of p...
https://drivepatents.com/patents/1077590 · 25 May 2005
The injector (1) has a cylindrical body (2), which houses an injection nozzle (4) regulated by an injection valve (5) provided with a moveable pin (8), a fuel supply line (15), an injection chamber (6) communicating with the supply line (15), housing a low...
https://drivepatents.com/patents/1078080 · 4 May 2005
A method for controlling an injector (2) with verification that plunger movement has occurred; the method providing application of a time-variable voltage (Vinj) to the terminals (5, 6) of an injector (2) drive circuit (4) in order to cause a current wave ...
https://drivepatents.com/patents/1079235 · 16 Mar 2005
An electronically controlled butterfly valve (1) comprising a valve body (2), a valve seat (4) formed in the valve body (2), a butterfly disc (5) adapted to engage the valve seat (4), a shaft (6) on which the butterfly disc (5) is keyed, an electric motor ...
https://drivepatents.com/patents/1079219 · 16 Mar 2005
A method for the production of a butterfly valve (1) which comprises a valve body (2) housing a valve seat (4) engaged by a butterfly disc (5) keyed on a shaft (6) in order to rotate under the action of an electric motor (3), the shaft (6) being coupled to...
https://drivepatents.com/patents/1079217 · 16 Mar 2005
A servo-assisted butterfly valve (1) comprising a valve body (2), a valve seat (4) formed in the valve body (2), a butterfly disc (5) adapted to engage the valve seat (4), a shaft (6) on which the butterfly disc (5) is keyed, an electric motor (3) coupled ...
https://drivepatents.com/patents/1080861 · 12 Jan 2005
A butterfly valve (1) comprising a valve seat (4), a butterfly body (5) engaging the valve seat (4), a shaft (6) on which the butterfly body (5) is keyed, an electric actuator (3) coupled to the shaft (6), a torsional return spring (23) adapted to rotate t...
https://drivepatents.com/patents/1081221 · 29 Dec 2004
The method involves controlling pressure of a fluid, during a final phase of closure of a valve (2) in a hydraulic actuator (17). A speed of impact of the valve is detected during a closing phase, and the pressure of the fluid from an oil collection tank (...
https://drivepatents.com/patents/1081220 · 29 Dec 2004
The method involves moving components between two positions, where each component transmits vibrations at a location of one of end positions of the component during operation of an internal combustion engine (M). A signal correlated with these vibrations i...
https://drivepatents.com/patents/1081525 · 22 Dec 2004
A method for estimating the sulfur content in the fuel of an internal combustion engine (1) equipped with a catalyser (11); the method providing the use of a current sulfur concentration value (Sold) and the correction of said current sulfur concentration ...