Robert Boschgmbh

Magneti Marelli Powertrain, S.p.a.

Magneti Marelli

Sandra Ranaldo

Antonio Diaferia

Josef Guentert

Gerd Loesch

Paolo Pasquali

Andrea Cobianchi

Pasquale Dragone

Peter Grabert

Nicola Cimaglia

Rosanna Iorizzo

Paul Wuetherich

Karl-Heinz Linek

Florian Kleer

Giuseppe Palma

Giuseppe Putignano

Stefano Polito

Alberto Bastia

Rita Di Gioia

A shut-off valve of the flow rate of a fuel pump for an internal combustion engine; the shut-off valve is provided with: a tubular cylindrical body, which is closed on top, displays a cylindrical seat, the lower portion of which performs the function of fuel pipe, and comprises a number of radial through holes to allow the introduction of fuel within the cylindrical seat; a lower plate, which is arranged within the tubular cylindrical body and underneath the radial holes and has a central through hole which defines an outlet opening of the fuel; and a cylindrical shutter, which is coupled to the lower plate and is mobile between an open position, in which the outlet opening is in communication with the radial holes, and a closed position, in which the outlet opening is isolated from the radial holes.

Shut-off valve for controlling the flow rate of a fuel pump for an internal combustion engine

A radial piston pump has a pump housing containing pump elements and whose high-pressure conduits extending in the pump housing are embodied so as to significantly increase the permissible operating pressures.

Radial piston pump for fuel injection system having improved high-pressure resistance

A pump element and a piston pump for generating high fuel pressure are proposed, in which tilting of the piston base relative to a drive shaft is effectively suppressed, so that the service life of the high-pressure fuel pump is increased.

Pump element and piston pump for generating high fuel pressure

Fuel injection system of the common rail type provided with a high-pressure pump, which supplies fuel to a common channel that in turn supplies a series of injectors, and with a control unit, which is capable of keeping the pressure of the fuel within the common channel, moment by moment, equal to a desired value that generally varies over time; the control unit is coupled to a device for regulating the flow rate of the high-pressure pump in order to control the flow rate of the high-pressure pump so as to supply the common channel, moment by moment, with the amount of fuel required in order to have the desired value for pressure inside said common channel.

Fuel injection system of the common rail type with a variable flow-rate pump

Growing community of inventors

Bologna, Italy

Sandra Ranaldo