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US 4,207,840 AGranted
Oil bath boiler
OwnerHector A. Dauvergneinventor
Life of this patent
Estimating the term…
Abstract
A boiler comprising a pressure vessel containing a volume of oil, a heat exchanger adapted to heat the oil within the pressure vessel and a water injection unit for injecting water into the oil volume and the pressure vessel for generation of steam.
Claims7
An oil bath boiler comprising:
- a pressure vessel with a substantially non-volatile and fixed volume of oil partially filling said pressure vessel, a heat exchanger immersed in said oil within said vessel, a combustion source communicating with said heat exchanger wherein heat from said combustion source is transmitted to said oil by said heat exchanger, a steam outlet communicating with said pressure vessel in a region not filled by said oil, and at least one water injection unit having a water outlet immersed in said oil wherein water is injected directly into said oil and is transformed to steam which exists said steam outlet.
Dependencies are inferred from the claim text.