Segregated cooling air flow for engine driven welder
First Claim
1. An engine driven welding machine, comprising:
- a base;
electrical devices disposed within a first electrical end of said welding machine;
an internal combustion engine disposed within a second engine end of said welding machine; and
means for cooling and quieting said welding machine comprising first air path means extending from first air inlet means defined within said first electrical end of said welding machine to first air outlet means defined within said second engine end of said welding machine for conducting cooling air to first selected components of said welding machine, and second air pat means, separate and independent from said first air path means, extending from second air inlet means, separate and independent from said first air inlet means, defined within said first electrical end of said welding machine to second air outlet means, separate and independent from said first air outlet means, defined within said second engine end of said welding machine for conducting cooling air to second selected components of said welding machine.
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Accused Products
Abstract
An engine driven welding machine has two paths of cooling air flowing therethrough that are segregated from each other. Both paths have their inlets at the electrical end of the welding machine, and both paths have their exhausts at the machine engine end. The first path directs air through a passage containing a rectifier and into a blower housing. The blower housing divides the first path into a first portion that supplies combustion air to the engine. A second portion of the first path directs air over outer walls of the engine block and head and into a hot air exhaust box, from which the air exhausts from the machine. The second path directs air over a stabilizer and into a generator. From the generator, the second path leads to an engine compartment, from which the air exhausts. The first and second paths direct the cooling air through multiple turns that reduce machine noise.
75 Citations
18 Claims
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1. An engine driven welding machine, comprising:
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a base; electrical devices disposed within a first electrical end of said welding machine; an internal combustion engine disposed within a second engine end of said welding machine; and means for cooling and quieting said welding machine comprising first air path means extending from first air inlet means defined within said first electrical end of said welding machine to first air outlet means defined within said second engine end of said welding machine for conducting cooling air to first selected components of said welding machine, and second air pat means, separate and independent from said first air path means, extending from second air inlet means, separate and independent from said first air inlet means, defined within said first electrical end of said welding machine to second air outlet means, separate and independent from said first air outlet means, defined within said second engine end of said welding machine for conducting cooling air to second selected components of said welding machine. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of cooling and quieting an engine driven welding machine having first and second ends, comprising the steps of:
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conducting a first cooling air stream in a downstream direction along a first air path extending from a first air inlet, defined within said first end of said welding machine, to a first air outlet defined within said second end of said welding machine for cooling and quieting first selected components of said welding machine disposed inside said welding machine and along said first air path; and conducting a second cooling air stream, separate and independent from said first cooling air stream, in a downstream direction along a second air path, separate and independent from said first air path, extending from a second air inlet, separate and independent from said first air inlet, defined within said first end of said welding machine, to a second air outlet, separate and independent from said first air outlet, defined within said second end of said welding machine for cooling and quieting second selected components of said welding machine disposed inside said welding machine and along said second air path. - View Dependent Claims (15, 16, 17, 18)
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Specification