Reduced icing valves and gas-driven motor and diaphragm pump...

Details Reduced icing valves and gas-driven motor and diaphragm pump... Reduced icing valves and gas-driven motor and diaphragm pump...

F - Mech Eng,Light,Heat,Weapons

04

B

F04B 43/073 (2006.01) F04B 53/08 (2006.01)

Patent

CA 2440520

A reduced icing valve for an gas-driven motor and a reciprocating double diaphragm pump is provided having a shiftable valve for alternatively supplying a motive gas through first and second supply ports to opposed first and second power pistons in opposed motive gas chambers, respectively, and for effecting alternating exhaust of the chambers. The shiftable valve is provided with an insert that deflects, away from the shiftable valve, air entering from each of the bypass valves until the bypass valves are fully actuated by the exhaust gas from the motive gas chambers. The shiftable valve is further provided with bypass valves independent of and intermediate the shiftable valve and each of the first and second motive gas chambers for bypassing the shiftable valve by exhaust gas from the motive gas chambers. The bypass valves are further actuated in an opposing direction by a supply source of motive gas to the chambers.

Robinet anti-givrage pour un moteur à gaz et une pompe à double membrane alternative, ledit robinet anti-givrage ayant une soupape mobile pour fournir alternativement un gaz moteur des premier et second ports d'alimentation aux premier et second pistons de puissance opposés dans des chambres de gaz moteur opposées, respectivement, et pour assurer l'échappement alternatif des chambres. La soupape mobile est pourvue d'un insert qui dévie, à l'opposé de la soupape mobile, de l'air entrant à partir de chacune des soupapes de dérivation jusqu'à ce que les soupapes de dérivation soient entièrement actionnées par les gaz d'échappement provenant des chambres de gaz moteur. La soupape mobile comporte en outre des soupapes de dérivation indépendantes et intermédiaires de la soupape mobile et de chacune des première et seconde chambres de gaz moteur pour dériver la soupape mobile par des gaz d'échappement provenant des chambres de gaz moteur. Les soupapes de dérivation sont en outre actionnées dans une direction opposée par une source d'alimentation de gaz moteur vers les chambres.

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