Abstract:
An anti-ice valve, a turbine engine including an anti-ice valve assembly and a method of operating an anti-ice valve where an anti-ice valve has a housing and a valve element configured to control a flow of hot bleed air through the housing, and a muscle air passage extending through the housing, a cooling air passage extending through the housing, and a heat exchanger located within the housing and having heat transfer surfaces in thermal communication with the muscle air passage and the cooling air passage.
Abstract:
A control valve for a fluid flow, comprising: a valve body (102, 402, 602, 802, 1002) that defines an inlet (103, 403, 603, 803, 1003) and an outlet (104, 404, 604, 804, 1004) for the fluid, an obstructer (105, 405, 605, 805, 1005) inserted in the valve body (102, 402, 602, 802, 1002), and an actuator system (106, 406, 606, 806, 1006) configured for reversibly translating the obstructer (105, 405, 605, 805, 1005) between a first position, in which the obstructer (105, 405, 605, 805, 1005) allows the passage of the fluid between said inlet (103, 403, 603, 803, 1003) and the outlet (104, 404, 604, 804, 1004), and a second position, in which the obstructer (105, 405, 605, 805, 1005) prevents the passage of the fluid between the inlet (103, 403, 603, 803, 1003) and the outlet (104, 404, 604, 804, 1004); the control valve further comprises a turbine rotor (109, 409, 609, 809, 1009) housed inside the valve body (102, 402, 602, 802, 1002), wherein the rotor (109, 409, 609, 809, 1009) comprises a plurality of blades and is configured for continuously rotating under the action of the fluid flowing between the inlet (103, 403, 603, 803, 1003) and the outlet (104, 404, 604, 804, 1004), the rotor (109, 409, 609, 809, 1009) rotating about an axis of rotation substantially aligned with the direction of translation of the obstructer (105, 405, 605, 805, 1005).
Abstract:
An improvement to a turbocharger having a housing (10) with a slot (25) located along a midline of the housing (10) above the turbine wheel (29) and a tongue (15) defining the end of an initial inlet throat area (11) of the housing (10), the slot (25) permitting inlet exhaust gas which flows past the tongue (15) to flow into the turbine wheel (29), the improvement being a pivoting vane (50) aligned with the slot (25) and having an upstream end (55) located at a downstream end (57) of the tongue (15). When the vane (50) is in its fully closed position (60), the inlet exhaust gas is prevented from flowing into the slot (25) and, therefore, the turbine wheel (29), until the inlet exhaust gas passes the downstream end (57) of the vane (50). The vane (50) effectively extends the tongue (15) to define a revised inlet throat area (12). The A/R ratio of the housing (10) progressively varies as the vane (50) pivots between the fully opened (70) and fully closed (60) positions.
Abstract:
Die Erfindung betrifft ein kombiniertes Schnellschluss- und Stellventil für eine Frischdampfleitung einer Dampfturbine, wobei eine Zentralspindel (11) derart ausgebildet ist, dass eine Druckentlastung beim Öffnen des Schnellschlussventilkegels (7) dadurch entsteht, dass eine strömungstechnische Verbindung (16) zwischen einem Ausgangsraum (4) und einem Rückraum (17) gebildet wird.
Abstract:
Die Erfindung betrifft eine Turbine mit einem Einströmgehäuse (1), welches einen von einem Schnellschlussventil (4) verschließbaren Einlass (3) für ein anströmendes Arbeitsmedium, eine Mehrzahl von Regelventilen (91, 8) und mindestens zwei Düsengruppen (21, 22) aufweist, wobei der Strom des Arbeitsmediums von dem Einlass (3) in die Düsengruppen (21, 22) mittels der Regelventile (61, 8) steuerbar ist. Weiter ist der Einlass (3) über eine Einlassleitung (7) mit der ersten Düsengruppe (21) zu verbinden, wobei die Einlassleitung (7) dergestalt durch das Primär-Regelventil (8) zu führen ist, dass der Strom des Arbeitsmediums entlang der Einlassleitung (7) mittels des Primär-Regelventils (8) steuerbar ist. Das Sekundär-Regelventil (91) verbindet erfindungsgemäß die erste Düsengruppe (21) mit der zweiten Düsengruppe (22) dergestalt, dass der Strom des Arbeitsmediums von der ersten Düsengruppe (21) in die zweite Düsengruppe (22) mittels des Sekundär-Regelventils (91) steuerbar ist.
Abstract:
An indicator device is for sensing a valve of a fluid machine including a casing having an interior chamber, a valve controlling flow into the interior chamber, and a rotatable shaft configured to displace the valve between open and closed positions when the shaft moves between first and second angular positions. A first indicator member, preferably a pinion gear, is coupled with the shaft such that angular movement of the shaft angularly displaces the first member. A second indicator member, preferably a rack gear, is coupled with the first member such that the angular displacement of the first member linearly displaces the second member. The second member linear displacement is generally proportional to angular displacement of the first member. Further, a sensor is configured to sense at least one of linear displacement and linear position of the second indicator member so as to sense the position of the valve.