GB1050333A

GB1050333A -

Info

Publication number: GB1050333A
Authority: GB

Abstract

1,050,333. Valves. LES APPLICATIONS TECHNIQUES INDUSTRIELLES L.A.T.I. SOCIETE CIVILE. Sept. 10, 1963 [Sept. 10, 1962; Aug. 20, 1963], No. 35706/63. Heading F2V. [Also in Division Fl] In a device for controlling the output flow from an I.C. engine supercharging compressor 1, Fig. 1, a bleed valve 13 is disposed upstream of gating means in the delivery conduit 4 and stressing means responsive to the position of the gating means, varies the force exerted by a spring 14 on the bleed valve. The gating means has a rotary body 5, Fig. 2, and an independently rotatable complementary gate 9, the respective orifices 0, O 1 , O 2 , O 3 in walls 12, 6, body 5 and gate 9 being eccentric to the rotational axis of body 5. Gate 9 is moved to modify the relationship between the rate of supercharging and the fuel consumption. A displacing head 11 in an arcuate slot 23 controls the stress applied by spring 14, through movement of stems 21, clamp 19 and cap 15 so that the pressure P 2 , at which the bleed valve 13 is unseated varies a function of the angular position of rotary body 5. The part of the charge bled off is returned through conduit 20 to the compressor intake 2 or in a modification through conduit 20a to the intake of the driving turbine (not shown). The area of flow through the gating device is controlled by movement of arms 24 or 10, Fig. 2 (not shown). In a traction engine installation, the angular position of rotary body 5 is controlled by lever 24, Fig. 6 (not shown), which is connected through bar 49, levers 50, 28, and bar 29 to a pivoted accelerator pedal, the lever 50 also being connected through bar 37, pivoted arms 38, 40 and bar 41 to the fuel supply control. Lever 50 is mounted on an eccentric portion of shaft 51 which is connected through lever 25 and bar 26 to a gear selection lever 27 so that an initial control position can be selected corresponding to a particular gear ratio. The admission of fuel is controlled by the position of an eccentric 39, Fig. 6b (not shown), moved by lever 42 and a spring-loaded piston 44 which is acted on by pressure in collector 18, Fig. 1.