Abstract:
L'invention a trait à un dispositif de détente et/ou de régulation de gaz comportant: un corps (1) avec un passage, une entrée (2) et une sortie (3) de gaz, l'entrée et la sortie étant en liaison avec le passage; des moyens d'obturation (5, 6, 7, 8) du passage; des moyens mobiles (9) définissant avec le corps (1) du dispositif une chambre basse pression (11) en aval des moyens d'obturation (5, 6, 7, 8), les moyens mobiles (9) actionnant les moyens d'obturation (5, 6, 7, 8) en fonction de la pression régnant dans la chambre basse pression (11). Les moyens d'obturation (5, 6, 7, 8) comportent un premier obturateur (5, 6) et un second obturateur (7, 8) monté en aval du premier dans le passage, et le premier et le second obturateur (5, 6, 7, 8) sont liés mécaniquement de sorte que le premier obturateur (5, 6) ferme avant le second (7, 8).
Abstract:
Offenbart ist ein stetig verstellbares Wegeventil mit einem Sitzschieber, an dem ein Ventilkegel ausgebildet ist, der in der Grundposition des Wegeventils gegen einen Ventilsitz vorgespannt ist. Das Wegeventil ist mit einer Vorsteuerung ausgebildet, wozu im Schliesskegel ein Vorsteuerventilsitz vorgesehen ist, der mit einem Vorsteuerventilkegel zusammenwirkt.
Abstract:
A fuel control valve construction, parts therefor, and methods of making the same, the construction comprising a housing (21) having an inlet (22) that is adapted to be interconnected to a fuel source, and an outlet (24) that is adapted to be interconnected to a main burner (25), the housing (21) having a pilot outlet (63) that is adapted to be interconnected to a pilot burner (31) for the main burner (25), the housing (21) having a pilot valve seat (30) and a main valve seat (26) for interconnecting the inlet (22) respectively with the pilot outlet (63) and the main outlet (24), the housing (21) having a movable pilot valve member (32) for opening and closing the pilot valve seat (30), and a movable main valve member (28) for opening and closing the main valve seat (26), the housing (21) having a movable lever (33) that carries the pilot valve member (32) and the main valve member (28), and also having a manually operable actuator (40) for controlling the operating positions of the lever (33).
Abstract:
A valve (1) for supplying fuel gas to a gas appliance comprises a valve housing (2) having a valve chamber (3) extending therethrough. Fuel gas is supplied through an inlet port (5) to the valve chamber (3) and form main and secondary outlet ports (6, 7) to a burner and a pilot light jet, respectively, of the gas appliance. A primary valving member (35) and a secondary valving member (36) co-operate with a primary valve seat (15) and a secondary valve seat (20), respectively, for isolating the main and secondary outlet ports (6, 7) from the inlet port (5). A main carrier member (30) carries the primary valving member (35) and is magnetically coupled to a first secondary carrier member (31) which is driven by a stepper motor (38). A second secondary carrier member (32) is magnetically coupled to the main carrier member (30) for carrying the secondary valving member (36). Electromagnetic coils (60, 61) magnetically couple the first and second secondary carrier members (31, 32) to the main carrier (30) so that the drive motor (38) can operate the main carrier (30) and in turn the primary and secondary valving members (35, 36) for opening and closing primary and secondary communicating passageways (19, 25) through the primary and secondary valve seats (15, 20).
Abstract:
A shuttle valve 8 includes a valve body 9, a shuttle 10, and an actuator mechanism 11. The shuttle valve 8 includes inlet ports 37 and 39 and outlet port 40. The shuttle 10 moves between first and second at rest positions to selectively connect one of the inlet ports to the outlet port and isolate the other inlet port from the outlet port. The actuator mechanism 11 includes first and second springs 63 and 66 and moves the shuttle 10 from one of its positions to another when a set pressure differential is attained between the inlet ports. The actuator mechanism 11 moves a partial stroke distance to move the shuttle 10 between its at rest positions and moves a full stroke distance to additionally open fluid communication between one of the inlet ports and the shuttle 10.
Abstract:
Vanne comprenant un corps (1) délimitant un conduit d'entrée (2) débouchant dans des premier et deuxième conduits de sortie (3, 4) pourvus respectivement d'un premier papillon (5) et d'un deuxième papillon (15), le premier papillon étant solidaire d'une première roue de transmission (7) reliée ô un moteur d'actionnement (10) pour être déplaçable dans deux positions de fermeture de part et d'autre d'une position d'ouverture, la première roue étant reliée ô une deuxième roue de transmission (17) ô laquelle un deuxième papillon est relié par un élément d'entraînement unidirectionnel (18, 19, 20, 21, 22, 23) positif lorsque le premier papillon est déplacé de sa position d'ouverture vers l'une de ses positions de fermeture de manière ô alors entraîner le deuxième papillon d'une position de fermeture vers une position d'ouverture, la vanne comportant un organe de rappel (25) du deuxième papillon vers sa position de fermeture lorsque le premier papillon est déplacé vers son autre position de fermeture.
Abstract:
Dispositif d'admission d'air d'un moteur thermique comportant : - un circuit principal (105) qui relie un organe de suralimentation (106) ô un collecteur d'admission (107) et qui incorpore un échangeur thermique (108), - un circuit dérivé (109) relié au circuit principal de part et d'autre de l'échangeur, le circuit dérivé incorporant un organe de chauffage (29), - un organe de sélection du circuit monté entre le circuit principal et le circuit dérivé pour diriger au moins en partie l'air dans l'un ou l'autre circuit.
Abstract:
A valve (1) for supplying fuel gas to a gas appliance comprises a valve housing (2) having a valve chamber (3) extending therethrough. Fuel gas is supplied through an inlet port (5) to the valve chamber (3) and form main and secondary outlet ports (6, 7) to a burner and a pilot light jet, respectively, of the gas appliance. A primary valving member (35) and a secondary valving member (36) co-operate with a primary valve seat (15) and a secondary valve seat (20), respectively, for isolating the main and secondary outlet ports (6, 7) from the inlet port (5). A main carrier member (30) carries the primary valving member (35) and is magnetically coupled to a first secondary carrier member (31) which is driven by a stepper motor (38). A second secondary carrier member (32) is magnetically coupled to the main carrier member (30) for carrying the secondary valving member (36). Electromagnetic coils (60, 61) magnetically couple the first and second secondary carrier members (31, 32) to the main carrier (30) so that the drive motor (38) can operate the main carrier (30) and in turn the primary and secondary valving members (35, 36) for opening and closing primary and secondary communicating passageways (19, 25) through the primary and secondary valve seats (15, 20). Isolating the coils (60, 61) from a power supply causes the first and second carrier members (31, 32) to be decoupled from the main carrier (30), and first compression springs (65, 66) urge the primary valving member (35) into engagement with the primary valve seat (15) while a second compression spring (80) urges the secondary valving member (36) into engagement with the secondary valve seat (20) the outlet ports (6, 7) from the inlet port (5).