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Contact Information:
Tel: (902)
469-1230
Fax:
(902) 463-5603
email:
sales@designeng.com |
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Semi-Closed Circuit Underwater
Breathing Apparatus |
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The Canadian Armed Forces (CAF) had a
requirement for a new underwater breathing apparatus to replace the CDBA
(Clearance Diver’s Breathing Apparatus). The CDBA was Second World War
British technology which the CAF wished to upgrade to state-of -the-art
Canadian technology.
The system was configured as a backpack
with over-the-shoulder counterlungs. A unique feature of the system is
that it mixes the diluent gas (nitrogen or helium) with oxygen in a
ratio that is a function of depth. Thus the diver is fed a relatively
constant partial pressure of oxygen at all depths. |
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The system was called the CUMA (Canadian
Underwater Mine-countermeasures Apparatus). Ed Smallhorn of S.E.A.
Engineering was project
manager and design engineer for the project responsible for all aspects of the work from
proposal stage through design to construction and testing of advanced
development models. |
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S.E.A. engineering provides design, engineering, thermal manikins, machine design, custom design, product development, sweating hot plates, moisture diffusion apparatus, diving equipment, breathing apparatus, pressure vessels for human occupancy, PVHO, compressors, expanders, comfort manikins, underwater, subsea, physiology, breathing machines, breathing apparatus and much more.