A fuel flow control assembly for an aircraft engine. The assembly includes a gear arrangement (14, 16) having a shaft (12, 18). Also included is a bearing structure (26) operatively coupled to the shaft. Further included is a pressure pad (32) disposed adjacent the bearing structure, the pressure pad having a radially extending port (40) for receiving a fuel flow. Yet further included is a flow metering device (36) in flow communication with the port of the pressure pad to restrict the fuel flow at a low pressure operating condition and open the port to increase the fuel flow at a high pressure operating condition.

A device for setting a volumetric flow rate ratio between fluid flows through at least a first and a second conduit section (27,28;69-71;111-113) is arranged to be connected to the conduit sections (27,28;69-71) such that each of at least the first and second conduit sections (27,28;69-71;111-113) has a respective one of coupled positive displacement machine associated with it. The device is arranged with each of the coupled positive displacement machines having each respective outlet (73,74;75) in fluid communication with only the associated one of the conduit sections (27,28;69-71;111-113). Alternatively, the device is arranged with each of the coupled positive displacement machines having each respective inlet in fluid communication with only the associated one of the conduit sections (27,28;69-71;111-113).

A split discharge vane pump is disclosed having a pump body that includes an interior pumping chamber having a central axis and defining a continuous peripheral cam surface, the cam surface including four quadrantal cam segments, wherein diametrically opposed cam segments have identical cam profiles, and each cam segment defines an inlet arc, a discharge arc and two seal arcs. A rotor is mounted for axial rotation within the pumping chamber and a plurality of circumferentially spaced apart radially extending vanes are mounted for radial movement within the rotor, wherein the plurality of vanes define an equal number of circumferentially spaced apart buckets which extend between the rotor and the cam surface of the pumping chamber for carrying pressurized fluid.

A rotary pump (1) is described for the continuous filling of mincemeat and the like, comprising a stator (2) with a cylindrical cavity, a closing cover (10) for the cavity of the stator (2), and a rotor (5) coaxially housed inside said stator (2) and revolving around its axis. The rotor (5) is made up of a central cylindrical portion (6) which extends along the axis and of a peripheral cylindrical portion (7) of such height that between said stator (2), said cover (10) and said rotor (5) is defined an upper annular chamber (15) having an inlet (3) and an outlet (4). A fixed partition panel (13) is provided fitted in the upper annular chamber (15) immediately downstream of said outlet (4) with respect to the direction of movement of the rotor (5). In said peripheral portion (7) of the rotor (5) radial blades (8) are arranged sliding, guided to slide in the direction of the rotor axis (5) in grooves (9) according to a preselected program enabled by a fixed lower cam (14) and by a cooperating fixed upper cam (10) comprising a first narrow portion (11) with descending ramp positioned in proximity of the central cylindrical part (6) of the rotor (5) immediately upstream of said panel (13). The upper cam (10) also comprises an auxiliary cam (16) made up of a second narrow portion with descending ramp positioned immediately upstream of said panel (13) and in proximity of the outer side edge of the peripheral part (7) of the rotor (5) to cooperate with said upper cam (10) for the downward movement of the blades (8) below said panel (13). (Fig.7)

An adhesive melter (10) includes a melter support frame (16) with a spring-loaded support and a manifold (12) for receiving molten adhesive. The melter also includes a pump pack assembly (18) having a rigid frame (20) carrying a pump (14) for directing flow of molten adhesive through the manifold, a motor (22), and a drive coupling (24) operatively connecting the pump and motor. The pump pack assembly is collectively mounted as a unit on the melter support frame by positioning the rigid frame on the spring-loaded support, moving the pump into abutment with the manifold, and fastening the pump into fluid-tight engagement with the manifold, the support adjusting in position during fastening to assist with carrying the pump pack assembly as a cantilever load.