| Patent Number |
Title Of Patent |
Date Issued |
| 7552909 |
Fuel injector with adjustable-metering servo valve for an internal-combustion engine |
June 30, 2009 |
| An injector with an adjustable-metering servo valve is provided. The injector has a shutter actuated by an armature of an electromagnet. The armature is mobile for an opening stroke defined by a surface of the core of the electromagnet, which is fixed in the casing by a ring nut and a |
| 7527210 |
Fuel injector for an internal-combustion engine |
May 5, 2009 |
| The fuel injector comprises a hollow casing, fixed on which is a nozzle having a nebulizer for the fuel under pressure, a needle axially mobile for opening and closing the nebulizer by means of a first end thereof, and a control rod, substantially coaxial with the needle and in direct |
| 7527036 |
Servo valve for controlling an internal combustion engine injection |
May 5, 2009 |
| A control servo valve is housed inside the casing of an internal combustion engine fuel injector, and has an actuator, a control chamber communicating with a fuel inlet and with a fuel outlet passage, and a shutter movable along an axis by the actuator between a closed position and a |
| 7469843 |
Servo valve for controlling an internal combustion engine fuel injector |
December 30, 2008 |
| A control servo valve (8) is housed inside the casing (2) of an internal combustion engine fuel injector (1), and has a piezoelectric actuator (40), and a control chamber (13) having a fuel outlet passage (21); the outlet passage (21) comes out inside an annular chamber (34) defined by a |
| 7464912 |
Method for obtaining a fuel injector for an internal-combustion engine, and an injector made acc |
December 16, 2008 |
| A fuel injector for an internal-combustion engine comprises an injector body and an injection-control valve, which in turn comprises: an open/close element; an elastic thrust element for pushing the open/close element; and a solenoid actuator, which can be actuated for exerting an ac |
| 7458529 |
Adjustable metering servovalve for a fuel injector |
December 2, 2008 |
| The metering servovalve (7) comprises a valve body (8, 30), an open/close element (45) and an electromagnet (15), and is housed in a casing (2) of the injector (1). The electromagnet (15) actuates a mobile armature (16) for a travel defined by a polar surface (19) of the core (18) of the |
| 7395812 |
Fuel-injection system for an internal-combustion engine |
July 8, 2008 |
| The injection system comprises a high-pressure pump (7) with variable flowrate, having a number of pumping elements (18) actuated with reciprocating motion and provided each with a corresponding intake valve (22). An accumulation volume (28) is supplied with fuel at low pressure from |
| 7299998 |
Internal combustion engine fuel injector |
November 27, 2007 |
| An internal combustion engine fuel injector (1) has a rod (10) movable along an axis (3) to open/close a nozzle, and a servovalve (7) having a control chamber (23) with a discharge passage (26) which is opened/closed by a shutter (17) movable axially under the control of an electro-a |
| 7278399 |
Injection system for an internal-combustion engine |
October 9, 2007 |
| A fuel-injection system (1, 1', 1'', 1''') for an internal-combustion engine (2), of the type provided with: a tank (3) for collection of the fuel; compressor system (4) for drawing in the fuel from the tank (3) and making it available at high pressure to an storage volume (7); at least |
| 7255289 |
Fuel injector for an internal-combustion engine |
August 14, 2007 |
| A fuel injector (1) for an internal-combustion engine has a shell (2) provided with two opposite terminal portions; the first terminal portion (4) has an inlet (7) for supply of the fuel and is generally designed to extend outside the engine, whilst the second terminal portion (5) has a |
| 7249593 |
Injection system for an internal-combustion engine |
July 31, 2007 |
| A fuel-injection system (1, 1', 1'', 1''') for an internal-combustion engine (2), of the type provided with compressor mechanism (4) for making available the fuel at a high pressure to an storage volume (7), and a plurality of injectors (8, 8', 8''') fluidically connected to the storage |
| 7219656 |
Servo valve for controlling an internal combustion engine fuel injector |
May 22, 2007 |
| A control servo valve (8) is housed inside the casing of an internal combustion engine fuel injector (1), and has an actuator (9), a control chamber (13) communicating with a fuel inlet (5) and with a fuel outlet passage (22), and a shutter (35) movable along an axis (3) by the actua |
