Abstract: Apparatus for measuring the operating parameters of espresso coffee machines, including: a filter-holder body configured to be associated with a water dispensing nozzle of an espresso coffee machine; said body internally defining a chamber for the passage of the water dispensed by said nozzle; a filling element arranged in said chamber and having a cavity for the passage of the water dispensed by the nozzle towards an outlet duct; a water outlet terminal element associated with said filter-holder body downstream of said chamber and defining said water outlet duct; and reading means for the water pressure and temperature values passing from the chamber to the outlet duct; said reading means include at least one pressure reading device operatively engaged with said water outlet terminal element and at least one temperature reading device operatively engaged at said cavity obtained in the filling element.

Abstract: An internal combustion engine has an electronically controlled variable mechanical transmission for varying the maximum lift of intake and/or exhaust poppet valves. The mechanical transmission includes a regulator mechanism with one or more slotted holes, and an actuation mechanism. The actuation mechanism includes a primary oscillating lever in contact with a cam actuating the lift of the valve, a secondary oscillating lever directly acting on the poppet valve, and a wedge-shaped slider device. The slider device includes a bore fitted with a roller free to rotate and having its ends protruding from it. The slider is interposed between the two oscillating levers and transmits the movement from the primary oscillating lever to the secondary one. The slider actuates the variation of the poppet valve's maximum lift. The regulator mechanism modifies the angular position of the slotted holes and actuates the variation of the transmission from the cam to the poppet valve.

Abstract: An internal combustion engine has an electronically controlled variable mechanical transmission for varying the maximum lift of intake and/or exhaust poppet valves. The mechanical transmission includes a regulator mechanism with one or more slotted holes, and an actuation mechanism. The actuation mechanism includes a primary oscillating lever in contact with a cam actuating the lift of the valve, a secondary oscillating lever directly acting on the poppet valve, and a wedge-shaped slider device. The slider device includes a bore fitted with a roller free to rotate and having its ends protruding from it. The slider is interposed between the two oscillating levers and transmits the movement from the primary oscillating lever to the secondary one. The slider actuates the variation of the poppet valve's maximum lift. The regulator mechanism modifies the angular position of the slotted holes and actuates the variation of the transmission from the cam to the poppet valve.

Abstract: A tattoo machine, comprising at least one elongated hollow body inside which there is a cavity for containing a coloring liquid that is connected to the outside by a hole provided at one end of the hollow body, a needle that can slide in a reciprocating fashion along the hole, and elements for moving the needle between a first end position, in which the needle protrudes at least partially from the hollow body, and a second end position, in which the needle is completely accommodated within the hollow body, the movement elements comprising a motor that can be associated with the needle by interposing motion transmission elements provided with a flexible cable, a first end of which can be associated with the motor and a second end of which can be associated with the needle.

Abstract: A diesel engine has a transfer duct interconnecting a cylinder and a substantially toroidal precombustion chamber into which projects a fuel injector having four radially arranged, angularly equidistant nozzles, the fuel injector being coaxial with the generation axis of the precombustion chamber which is perpendicular to the axis of the cylinder.

Abstract: An air induction system which reduces the fuel odor and noise of a diesel engine includes two acoustically insulating baffle elements which cover a fuel pump, fuel pipes and fuel injectors and cause the air inducted by the engine to pass through an air filter interposed between the baffle elements, thereby inducting the fumes from the fuel system along respective pipes which extend across the top of the engine into respective cylinder air induction ducts.