A supplemental cooling system for an air cooled engine, the air cooled engine including an air inlet for the intake of cooling air, the engine being connected to a pump, the pump having a fluid outlet through which pumped fluid is operable to flow, the cooling system including a pump interface in fluid communication with the fluid outlet, the pump interface including a fluid opening for redirecting a portion of the fluid flowing out of the fluid outlet; and a conduit operable to transmit the redirected portion of fluid therethrough, the conduit having first and second ends, the first end in fluid communication with the fluid opening and the second end in fluid communication with the air inlet; wherein the redirected portion of fluid is sufficient to increase the cooling capacity of the cooling air.
F01P 11/12 - Filtrage, refroidissement ou silencieux pour l'air de refroidissement
F01P 9/04 - Refroidissement ayant des caractéristiques importantes non couvertes dans les groupes ou présentant un intérêt autre que celui visé par ces groupes par utilisation simultanée ou alternative d'un refroidissement par air et d'un refroidissement par liquide
F02B 63/06 - Adaptations des moteurs pour entraîner des pompes, des outils tenus à la main ou des génératrices électriquesCombinaisons portatives de moteurs avec des dispositifs entraînés par des moteurs pour pompes
An attachment mechanism for attaching a first body to a second body is provided which includes an internal ring attached to the first body, a hub attached to the second body, a locking ring disposed around the hub, and a retention mechanism for retaining the engagement between the internal ring and the locking ring. The internal ring includes a first annular mating surface and an outer surface. The hub includes a second annular mating surface for engaging the first annular mating surface when the first and second bodies are attached, and a first engagement means provided circumferentially around the hub. The locking ring includes a second engagement means provided circumferentially around the locking ring and adapted to engage the first engagement means during attachment of the first and second bodies, and an outer surface. The engagement of the first and second engagement means prevents rotation of the locking ring with respect to the hub. The retention mechanism includes a radially extending flange extending from the outer surface of one of the internal ring and the locking ring, and a locking arm extending from the outer surface of the other of the internal ring and the locking arm and operable to receive the radially extending flange. The radially extending flange and the locking arm are correspondingly shaped and sized such that their engagement enables a drawing together of the first and second mating surfaces in response to a rotation of the locking ring with respect to the internal ring.
F04B 53/22 - Dispositions pour l'assemblage ou le démontage rapide
F16B 21/02 - Dispositifs de fixation largables verrouillant par rotation
F16B 7/00 - Assemblages de barres ou assemblages de tubes, p. ex. de section non circulaire, y compris les assemblages élastiques
F16L 37/10 - Accouplements du type à action rapide dans lesquels l'assemblage entre les extrémités s'aboutant ou se chevauchant est maintenu par des organes de blocage utilisant sur une partie un manchon ou segment externe rotatif
F16L 37/16 - Raccords serrés par l'action de crochets articulés en forme de coins
A method and apparatus are disclosed for controlling a relay pumping setup comprising an upstream pumping unit for pumping a liquid into a relay reservoir and a downstream pumping unit for pumping from said relay reservoir to a given location, the method comprising receiving a relay reservoir liquid level indication indicative of a liquid level in the relay reservoir and providing a control signal to at least one of the upstream pumping unit and the downstream pumping unit depending on the received relay reservoir liquid level indication.
A method and apparatus are disclosed for filtering out particles in a fluid, the method comprising providing the fluid, creating a turbulent flow in the fluid, and collecting the particles.
B01D 29/56 - Filtres à éléments filtrants stationnaires pendant la filtration, p. ex. filtres à aspiration ou à pression, non couverts par les groupes Leurs éléments filtrants à plusieurs éléments filtrants caractérisés par leur agencement relatif montés en série
B01D 45/00 - Séparation de particules dispersées dans des gaz ou des vapeurs par gravité, inertie ou force centrifuge
B04C 9/00 - Combinaisons avec d'autres dispositifs, p. ex. avec des ventilateurs
C02F 1/00 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout
A system for automatically controlling a pumping unit used in fire suppression comprises a pumping unit, a water flow sensor and a pump controller. The pumping unit has a pump with a suction inlet configured to receive water from an upstream pumping unit and an engine to run the pump. The water flow sensor senses water flow into the suction inlet of the pumping unit. The pump controller receives a water flow sensor signal from the water flow sensor and controls an on/off state of the engine based on the water flow sensor signal.
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