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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Ricco; Mario
Address:
Casamassima, IT
No. of patents:
44
Patents:












Patent Number Title Of Patent Date Issued
8231105 Adjustable metering servovalve for a fuel injector, and relative adjustment method July 31, 2012
The metering servovalve (7) includes a valve body (8, 30), a shutter (45), and an electromagnet (15), and is housed inside a casing (2) of the injector (1). The electromagnet (15) activates a movable armature (16) performing a travel defined by a stop member (19) carried by the elect
7963270 Fuel injector with high stability of operation for an internal-combustion engine June 21, 2011
The injector comprises a metering servo valve for controlling a rod for opening/closing a nebulizer. The servo valve has a valve body having a control chamber provided with an outlet passage that is opened/closed by an open/close element that is axially movable. The open/close element is
7954787 Fuel injector with balanced metering servovalve, for an internal combustion engine June 7, 2011
The injector comprises a balanced metering servovalve to control a rod for the opening/closing of a nozzle. La servovalve has a valve body with a control chamber radially delimited by a tubular portion and fitted with an outlet passage that is opened/closed by an axially movable shutter.
7954729 Metering servovalve and fuel injector for an internal combustion engine June 7, 2011
A metering servovalve for a fuel injector of an internal combustion engine has an electro-actuator and a fixed valve body, which defines a control chamber communicating with an inlet and with an outlet channel. The outlet channel has at least one calibrated restriction and exits thro
7802584 Fuel injector for internal combustion engine and corresponding method of manufacture September 28, 2010
A fuel injector comprising a hollow body for housing a metering valve with a calibrated pipe for outlet of the fuel from a control chamber. The calibrated pipe is normally kept closed by a shutter controlled by an electromagnet comprising a magnetic core and an electric coil housed in
7793862 Fuel-control servo valve, and fuel injector provided with such servo valve September 14, 2010
A servo valve (7) for fuel control is provided with an actuator (14) and a valve body (8, 28), which is set in a fixed position and has a stem (33) that extends along a longitudinal axis (3) and defines an internal passage (26); said internal passage (26) has at least two radial channels
7784711 Metering servovalve and fuel injector for an internal combustion engine August 31, 2010
A fuel injector and servovalve for an internal combustion engine. In one embodiment, the fuel injector comprises a casing; a balanced metering servovalve in the casing that controls movement of an injection control rod along an axial cavity; said servovalve having; a valve body compr
7779815 Fuel injection system comprising a variable flow rate high-pressure pump August 24, 2010
An injection system includes a high-pressure pump with at least one pumping element operated in a reciprocating manner by corresponding intake and discharge strokes. Each pumping element is equipped with a corresponding intake valve in communication with an intake line, fed by a low-
7603986 Fuel adjustment and filtering device for a high-pressure pump October 20, 2009
A fuel adjustment and filtering device for a high-pressure pump of a fuel injection system, the device comprising at least one filter, comprising a removable filter cartridge, comprising a filtering body, housed within a filter casing; a shut-off solenoid valve for metering fuel; and, a
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
7513445 Metering solenoid valve for a fuel injector April 7, 2009
The metering servo valve comprises a valve body, an open/close element, and an electromagnet, and is housed in a shell of the injector. The electromagnet actuates a mobile armature for a travel defined by an arrest element, carried by the electromagnet, which is housed in a casing, f
7461636 Device for connection between a rail for fuel under pressure and at least one injector, for an i December 9, 2008
The device includes a connection tube in communication with a hole of a rail for fuel under pressure, the tube being provided with an end swelling. The device has a first threaded element fixed to the rail in a position corresponding to the hole and a second threaded element designed
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
7458155 Method of producing a fuel injector December 2, 2008
A fuel injector has an injector body extending along a given axis; a tubular valve body housed inside a hole in the injector body and coaxial with the injector body; and an annular chamber defined by the injector body and the valve body. The method of producing the injector includes
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
7380541 Fuel-injection system for an internal-combustion engine June 3, 2008
The injection system comprises a high-pressure pump with variable flowrate, having at least one pumping element provided with an intake valve in communication with an intake pipe and a delivery valve in communication with a delivery pipe. A pressure regulator is set on the intake pip
7347186 High-pressure pump for a fuel, with sump in communication with the fuel March 25, 2008
The pump (7) is provided with a body (16) having a compartment (17), and with at least one pumping element (13) that moves in a cylinder (12) in communication with the compartment (17), to raise the pressure of the fuel. The pump (7) comprises fluid-supply means (14, 22) for delivering
7305969 Connection system for a tubular rail for high-pressure fluid and a system for reducing the size December 11, 2007
In order to reduce the size of a tubular rail for a high-pressure fluid, the rail is obtained from a hollow body with an external diameter and an internal diameter, and has two terminal portions, each provided with an external milling to favour gripping thereof. The millings have an
7240859 Fuel-injection system for an internal-combustion engine and corresponding method for controlling July 10, 2007
A fuel-injection system in an internal-combustion engine is provided with an electroinjector (1) comprising an injection nozzle (5), and a needle (7) mobile along an opening stroke and a closing stroke for opening/closing the nozzle (5) under the control of an electroactuator device
7213775 Fuel injector device for an internal combustion engine May 8, 2007
The invention describes an injector device specifically designed for the injection of an alternative fuel such as LPG, methane, hydrogen or others, in an internal combustion engine. In the injector device, the shutter ensuring sealing in closing condition is separated with respect to
7044109 Internal combustion engine fuel injector May 16, 2006
An internal combustion engine fuel injector has a casing defining a nozzle; and a shutter pin having an axis, and housed in axially sliding manner inside the casing to close the nozzle by virtue of a control rod. The pin and the control rod are connected by a connecting device, which
6916048 Device for fluid-tight connection of a fitting to an internal combustion engine fuel injector July 12, 2005
The fitting has a high-pressure fuel supply conduit, and the injector has a hollow body having a threaded seat engaged by a threaded portion of the fitting. The fitting has a shoulder located between the threaded portion and another portion of the fitting, and the hollow body has a shoul
6915692 Level-sensor device for a liquid-fuel tank, particularly for a system for supplying LPG to an in July 12, 2005
In a tank for liquid fuel, particularly a tank for LPG in a system for supply of LPG to the internal-combustion engine of a motor vehicle, the level-sensor device comprises a floating member guided so as to move in a substantially vertical direction within the tank according to the v
6905083 Internal combustion engine fuel injector and relative fabrication method June 14, 2005
The injector has an injector body having a seat for a metering valve in turn having a control chamber for controlling a control rod. The control chamber has an inlet conduit and a drain conduit controlled by a shutter, and is defined by two parts, one of which is defined by a bush having
6904896 Tank for a system for supplying liquid fuel, particularly LPG, to the engine of a motor vehicle June 14, 2005
An LPG fuel tank for motor vehicles is provided, inside, with a support, on which there can be installed in a rapid way a pump assembly including a supply pump and the corresponding electric actuating motor. Preferably, the support is also used for installing a level-sensor assembly with
6896194 Method of producing fuel injectors, and relative fuel injector May 24, 2005
A method of producing fuel injectors for internal combustion engines provides for establishing a working life of each injector conforming with the working life of the internal combustion engine on which it is installed. Each injector has an injector body having a seat; a valve body h
6874709 Internal combustion engine fuel injector having an electromagnetic metering valve April 5, 2005
The injector has a hollow body housing the body of the metering valve, which has a discharge hole for discharging the usual control chamber. The hole comes out at a flat surface of the valve body, and is engaged by a flat surface of a plate, under the control of an armature of an ele
6869033 System for assembling an internal combustion engine fuel injector March 22, 2005
The injector has a hollow body supporting an ordinary injection nozzle and a metering valve for metering the fuel to be injected; and a support defined by a sleeve and by an end wall. The sleeve houses an electromagnet controlling the metering valve, and is fitted to the hollow body. For
6824082 Method of producing a fuel injector, and relative fuel injector November 30, 2004
A fuel injector has an injector body extending along a given axis; a tubular valve body housed inside a hole in the injector body and coaxial with the injector body; and an annular chamber defined by the injector body and the valve body. The method of producing the injector includes
6805104 System and method for feeding LPG by injection for an internal combustion engine October 19, 2004
In a system for feeding LPG by injection for an internal combustion engine, sensor means are provided for measuring the electrical current absorbed by the electric motor for driving the feed pump. The operation of said electric motor is interrupted when the measured electrical current
6793158 Internal combustion engine fuel injector September 21, 2004
A fuel injector has a fuel inlet, and a metering valve which is activated by an electromagnetic actuator to open and close an injection nozzle; the metering valve has a control chamber communicating with the inlet and defined by an end wall, in which is formed an outlet hole closed by a
6685111 Fuel injector and relative production method February 3, 2004
A fuel injector has an injector body and a fitting for connecting the injector body to a high-pressure fuel supply conduit. The injector body and the fitting are separate elements of the injector, and are connected to each other to connect the supply conduit and grip an end portion of th
6672290 Internal combustion engine common-rail injection system with a fuel premetering device January 6, 2004
The fuel premetering device has a valve controlled by an electromagnet and located between a delivery conduit of a high-pressure pump supplying fuel to a common rail, and a drain conduit for draining surplus fuel. The valve is normally closed by a spring, and the electromagnet is energiz
6668800 Internal combustion engine fuel injection system December 30, 2003
The system has a high-pressure pump having a number of mechanical pumping elements for pumping high-pressure fuel to a common rail; and a number of injectors communicating with the rail and activated to inject a quantity of fuel sequentially into the corresponding cylinders of the engine
6666388 Plug pin for an internal combustion engine fuel injector nozzle December 23, 2003
The nozzle has a conical wall with injection orifices; the pin has a tip activated by an axial force to engage the wall and close the orifices; the tip has a truncated-cone-shaped portion having an outer surface which rests entirely on the wall, possibly as a result of elastic deformatio
6666193 On-off valve for a gas injection system, particularly of methane, for internal combustion engine December 23, 2003
On-off valve intended to be arranged at the outlet of the gas accumulation reservoir in an electronic gas injection system for an internal combustion engine, presenting a valve member made of metallic material, co-operating with a valve seat made in a body, which is also made of metallic
6619617 Electromagnetic metering valve for a fuel injector September 16, 2003
The metering valve has a shutter for a discharge conduit, and an electromagnet for controlling an armature disconnected from a relative stem and sliding along the stem by means of a sleeve. The armature is secured to the stem by a shoulder of the armature cooperating with a C-shaped
6609500 Device for controlling the flow of a high-pressure pump in a common-rail fuel injection system o August 26, 2003
The common rail supplies a number of injectors of the cylinders of the engine, and is supplied by a constant-displacement high-pressure pump in turn supplied by a low-pressure, variable-delivery, variable-pressure, motor-driven pump. The control device has an electronic control unit for
6578560 Gas injection system, particularly of methane, for internal combustion engines, and pressure reg June 17, 2003
Gas injection system, particularly of methane, for an internal combustion engine, comprising a plurality of electromagnetically controlled injectors associated to the various cylinders of the engine, a gas distributing manifold communicating with the injectors, a reservoir feeding the
6578556 Device and method for controlling an electromagnet controlling a metering valve of an internal c June 17, 2003
The device has an electric circuit for generating a first electric current of such a predetermined value as to excite the electromagnet to open the metering valve, and a second electric current of a lower value such as to keep the electromagnet excited; and a timing device for controllin
6575384 Fuel injector with a control rod controlled by the fuel pressure in a control chamber June 10, 2003
The injector has a control rod controlled by the fuel pressure in a control chamber, and a nozzle having an injection chamber supplied with pressurized fuel for injection. The nozzle has at least one injection orifice normally closed by a pin connected to the rod and activated by the
6539924 Internal combustion engine fuel injector, and relative method of classifying and selecting a ser April 1, 2003
The injector has a nozzle closed by a rod which is movable by the fuel pressure in a control chamber having a discharge conduit closed by a plug controlled by an electromagnet. The rod is movable, from a closed position closing the nozzle, to effect a maximum travel, so that the amount o
6443132 Internal combustion engine fuel injector September 3, 2002
The injector has a hollow body housing a fuel metering valve closed by a closing spring; and a support housing an electromagnet controlling an armature. The support is connected to the hollow body, and the armature provides for opening the valve. The armature is fitted inside the hollow










 
 
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