Engine driven welder

Abstract

A welding machine includes a welding power supply. A generator is operatively connected to the welding power supply to supply electrical energy to the welding power supply. An internal combustion engine is configured to drive the generator. A chassis structure includes a divider wall that at least partially defines an engine compartment of the welding machine. A cantilevered engine-mounting shelf is cantilevered from the divider wall. The internal combustion engine is attached to the cantilevered engine-mounting shelf. A fuel tank is mounted within the chassis structure and located beneath each of the cantilevered engine-mounting shelf, the internal combustion engine and the generator.

What is claimed is: 
     
         1 . A welding machine, comprising:
 a welding power supply;   a generator operatively connected to the welding power supply to supply electrical energy to the welding power supply;   an internal combustion engine configured to drive the generator;   a chassis structure comprising a divider wall that at least partially defines an engine compartment of the welding machine;   a cantilevered engine-mounting shelf cantilevered from the divider wall and having first and second sides that extend away from the divider wall and into the engine compartment, wherein the first and second sides each include a respective strengthening flange that extends away from an engine-mounting surface of the cantilevered engine-mounting shelf, and wherein the internal combustion engine is attached to the cantilevered engine-mounting shelf;   a fuel tank mounted within the chassis structure and located beneath each of the cantilevered engine-mounting shelf, the internal combustion engine and the generator; and   a vibration isolator that isolates the cantilevered engine-mounting shelf from the chassis structure.   
     
     
         2 . The welding machine of  claim 1 , wherein the divider wall is located between the internal combustion engine and a starting battery for starting the internal combustion engine. 
     
     
         3 . The welding machine of  claim 2 , wherein the divider wall separates the engine compartment from a battery compartment storing the starting battery. 
     
     
         4 . The welding machine of  claim 3 , further comprising a removable battery compartment cover for providing access to the battery compartment, wherein the battery compartment cover is located on a front side of the welding machine. 
     
     
         5 . The welding machine of  claim 1 , wherein the divider wall is located between the internal combustion engine and the welding power supply. 
     
     
         6 . The welding machine of  claim 5 , wherein the welding power supply is located in an electronics compartment of the welding machine, and the internal combustion engine is configured to draw combustion air from the electronics compartment. 
     
     
         7 . The welding machine of  claim 1 , wherein the cantilevered engine-mounting shelf has a trapezoidal shape. 
     
     
         8 . A welding machine, comprising:
 a welding power supply;   a generator operatively connected to the welding power supply to supply electrical energy to the welding power supply;   an internal combustion engine configured to drive the generator;   a chassis structure comprising a bulkhead separating an engine compartment from another compartment of the welding machine;   a vibration isolator mounted to the bulkhead;   an engine-mounting shelf projecting from the bulkhead and isolated from the bulkhead by the vibration isolator, wherein the internal combustion engine and engine-mounting shelf apply a radial load to the vibration isolator; and   a fuel tank mounted within the chassis structure and located beneath each of the engine-mounting shelf, the internal combustion engine, and the generator.   
     
     
         9 . The welding machine of  claim 8 , wherein the engine-mounting shelf is cantilevered from the bulkhead. 
     
     
         10 . The welding machine of  claim 8 , wherein said another compartment is a battery compartment storing a starting battery for starting the internal combustion engine. 
     
     
         11 . The welding machine of  claim 10 , wherein the welding machine further comprises a removable battery compartment cover located on a front side of the welding machine. 
     
     
         12 . The welding machine of  claim 10 , wherein the welding power supply is located above the battery compartment and forward of the internal combustion engine. 
     
     
         13 . The welding machine of  claim 8 , wherein the engine-mounting shelf has a trapezoidal shape, and nonparallel sides of the engine-mounting shelf extend away from the bulkhead into the engine compartment and include respective strengthening flanges. 
     
     
         14 . The welding machine of  claim 8 , wherein the engine-mounting shelf includes first and second sides that extend away from the bulkhead and into the engine compartment, and wherein the first and second sides each include a respective strengthening flange that extends away from an engine-mounting surface of the engine-mounting shelf. 
     
     
         15 . The welding machine of  claim 8 , wherein the bulkhead is located between the internal combustion engine and the welding power supply. 
     
     
         16 . The welding machine of  claim 15 , wherein the welding power supply is located in an electronics compartment of the welding machine, and the internal combustion engine is configured to draw combustion air from the electronics compartment. 
     
     
         17 . An electrical power generation apparatus, comprising:
 an internal combustion engine;   a generator coaxially coupled to the internal combustion engine and driven by the internal combustion engine;   a starting battery operatively connected to the internal combustion engine and located within a battery compartment;   a chassis structure comprising a divider wall separating an engine compartment from the battery compartment;   a cantilevered engine-mounting shelf cantilevered from the divider wall and having first and second sides that extend away from the divider wall and into the engine compartment, wherein the first and second sides each include a respective strengthening flange that extends away from an engine-mounting surface of the cantilevered engine-mounting shelf, wherein the internal combustion engine is attached to the cantilevered engine-mounting shelf;   a fuel tank mounted within the chassis structure and located beneath each of the cantilevered engine-mounting shelf, the internal combustion engine and the generator; and   a vibration isolator that isolates the cantilevered engine-mounting shelf from the chassis structure.   
     
     
         18 . The electrical power generation apparatus of  claim 17 , wherein the cantilevered engine-mounting shelf has a trapezoidal shape. 
     
     
         19 . The electrical power generation apparatus of  claim 17 , wherein the divider wall is located between the internal combustion engine and an electronics compartment. 
     
     
         20 . The electrical power generation apparatus of  claim 19 , wherein the internal combustion engine is configured to draw combustion air from the electronics compartment.