Compact power supply
AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorsEiji Nogami, Hironori Nakayama, Kazuhito Kitano
Life of this patent
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Abstract
A number of embodiments of air cooled compact power supplies having air inlet and air outlet openings in the lower portion of the housing of the power supply. The interior of the power supply is baffled so that the air flowing through it must follow a serpentine path to prevent air entrained foreign materials from impinging upon the engine.
Claims25
A portable power supply comprising an outer housing defining an enclosed area, an internal combustion engine contained within said enclosed area and driving a generator for providing a source of electrical power, an air inlet opening in said outer housing for admitting cooling air into said enclosed area, an air outlet opening in said outer housing for discharging air therefrom, and baffle means in said enclosed area for redirecting the flow between said openings in a serpentine path within said enclosed area to preclude air carried foreign material from directly impacting of said engine, said baffle means including means for causing the air flowing through said air inlet opening to be redirected through at least three right angle turns before passing across said engine.
A portable power supply comprising an outer housing defining an enclosed area, an internal combustion engine contained within said enclosed area and driving a generator for providing a source of electrical power, an air inlet opening in said outer housing for admitting cooling air into said enclosed area, an air outlet opening in said outer housing for discharging air therefrom, and baffle means in said enclosed area for redirecting the flow between said openings in a serpentine path within said enclosed area to preclude air carried foreign material from compacting said engine, said engine being positioned in a central area of said outer housing and said inlet opening is on one side of said housing so that the air must flow around said engine on the path from said inlet opening to said outlet opening, said engine being powered by a pressurized source of gaseous fuel contained within a fuel container positioned within said outer housing, said fuel container being positioned on the exit side of said outer housing, thermostatically controlled valve means for permitting a portion of the heated air flowing toward said air outlet opening to be diverted to heat said fuel container.
A portable power supply comprising an outer housing defining an enclosed area, an internal combustion engine contained within said enclosed area and driving a generator for providing a source of electrical power, an air inlet opening in a lower portion of said outer housing for admitting cooling air into said enclosed area, an air outlet opening formed in a lower portion of said outer housing for discharging air therefrom, said engine being powered by a pressurized source of gaseous fuel contained within a fuel container positioned within said outer housing, said fuel container being positioned on the exit side of said outer housing, and thermostatically controlled valve means for permitting a portion of the heated air flowing toward said air outlet opening to be diverted to heat said fuel container.
A portable power supply comprising an outer housing defining an enclosed area, an internal combustion engine contained within said enclosed area and driving a generator for providing a source of electrical power, an air inlet opening in said outer housing for admitting cooling air into said enclosed area, an air outlet opening in said outer housing for discharging air therefrom, said internal combustion engine having an exhaust system discharging exhaust gases into said outer housing between said air inlet opening and said air outlet opening, and baffle means in said enclosed area for redirected the flow of air between said openings in a serpentine path within said enclosed area and for effecting turning of the exhaust gases flowing from said exhaust system through at least three right angles before exit through said air outlet opening.
Dependencies are inferred from the claim text.