Foam spraying rig

Abstract

A foam spraying rig comprising a trailer or cargo truck having first and second fluid spray component storage tanks mounted in the body thereof. An internal combustion engine is provided within the body of the trailer or cargo truck as are the other components of the system. The components of the system include a hydraulic pump, an engine exhaust system may include an exhaust water jacket, an air compressor, proportioning pump, and a heat exchanger. The hydraulic oil from the hydraulic pump and the lubricating oil of the air compressor are in recirculating fluid communication with the heat exchanger. The engine coolant is also in recirculating fluid communication with the heat exchanger as is the coolant from the exhaust water jacket.

1 . In combination:
 a cargo truck body;   a water-cooled engine in said cargo truck body and having an exhaust system;   said exhaust system of said engine having water jacket associated therewith;   a hydraulic pump in said cargo truck body;   an air compressor having internal lubricating oil, in said cargo truck body;   a heat exchanger, having inlet and outlet ends, in said cargo truck body;   said hydraulic pump being in recirculating fluid connection with said heat exchanger so that the hydraulic fluid of said hydraulic pump is in recirculating communication with said heat exchanger;   the engine coolant of said engine being in recirculating fluid communication with said heat exchanger;   the water of said water jacket of said engine exhaust system being in recirculating fluid communication with said heat exchanger;   the lubricating oil of said air compressor being in recirculating fluid communication with said heat exchanger;   a first fluid spray component storage tank in said cargo truck body having an inlet and an outlet end;   a second fluid spray component storage tank in said cargo truck body having an inlet end and an outlet end;   a proportioning pump having an inlet end and an outlet end;   said inlet end of said proportioning pump being in fluid communication with said first and second fluid storage tanks;   said outlet end of said proportioning pump being in fluid communication with said inlet end of said heat exchanger;   said outlet end of said heat exchanger being in fluid communication with a spray gun.   
   
   
       2 . In combination:
 a trailer body;   a water-cooled engine in said trailer body and having an exhaust system;   said exhaust system of said engine having water jacket associated therewith;   a hydraulic pump in said trailer body;   an air compressor in said trailer body;   said air compressor including internal lubricating oil;   a heat exchanger, having inlet and outlet ends, in said trailer body;   said hydraulic pump being in recirculating fluid connection with said heat exchanger so that the hydraulic fluid of said hydraulic pump is in recirculating communication with said heat exchanger;   the engine coolant of said engine being in recirculating fluid communication with said heat exchanger;   the water of said water jacket of said engine exhaust system being in recirculating fluid communication with said heat exchanger;   the lubricating oil of said air compressor being in recirculating communication with said heat exchanger;   a first fluid spray component storage tank in said trailer body having an inlet and an outlet end;   a second fluid spray component storage tank in said trailer body having an inlet end and an outlet end;   a proportioning pump having an inlet end and an outlet end;   said inlet end of said proportioning pump being in fluid communication with said first and second fluid storage tanks;   said outlet end of said proportioning pump being in fluid communication with said inlet end of said heat exchanger;   said outlet end of said heat exchanger being in fluid communication with a spray gun.   
   
   
       3 . In combination:
 a cargo truck body;   a water-cooled engine in said cargo truck body and having an exhaust system;   said exhaust system of said engine having water jacket associated therewith;   a hydraulic pump in said cargo truck body;   an air compressor in said cargo truck body;   said air compressor including internal lubricating oil;   a heat exchanger, having inlet and outlet ends, in said cargo truck body;   the engine coolant of said engine being in recirculating fluid communication with said heat exchanger;   the water of said water jacket of said engine exhaust system being in recirculating fluid communication with said heat exchanger;   a first fluid spray component storage tank in said cargo truck body having an inlet and an outlet end;   a second fluid spray component storage tank in said cargo truck body having an inlet end and an outlet end;   a proportioning pump having an inlet end and an outlet end;   said inlet end of said proportioning pump being in fluid communication with said first and second fluid storage tanks;   said outlet end of said proportioning pump being in fluid communication with said inlet end of said heat exchanger;   said outlet end of said heat exchanger being in fluid communication with a spray gun.   
   
   
       4 . The combination of  claim 3  wherein a hydraulic pump is provided in said cargo body and wherein said hydraulic pump is in recirculating fluid communication with said heat exchanger. 
   
   
       5 . The combination of  claim 3  wherein the lubricating oil of said air compressor is in recirculating fluid communication with said heat exchanger. 
   
   
       6 . In combination:
 a trailer body;   a water-cooled engine in said trailer body and having an exhaust system;   said exhaust system of said engine having water jacket associated therewith;   a hydraulic pump in said trailer body;   an air compressor in said trailer body;   said air compressor including internal lubricating oil;   a heat exchanger, having inlet and outlet ends, in said trailer body;   the engine coolant of said engine being in recirculating fluid communication with said heat exchanger;   the water of said water jacket of said engine exhaust system being in recirculating fluid communication with said heat exchanger;   a first fluid spray component storage tank in said trailer body having an inlet and an outlet end;   a second fluid spray component storage tank in said trailer body having an inlet end and an outlet end;   a proportioning pump having an inlet end and an outlet end;   said inlet end of said proportioning pump being in fluid communication with said first and second fluid storage tanks;   said outlet end of said proportioning pump being in fluid communication with said inlet end of said heat exchanger;   said outlet end of said heat exchanger being in fluid communication with a spray gun.   
   
   
       7 . The combination of  claim 6  wherein a hydraulic pump is provided in said cargo body and wherein said hydraulic pump is in recirculating fluid communication with said heat exchanger. 
   
   
       8 . The combination of  claim 6  wherein the lubrication oil of said air compressor is in recirculating fluid communication with said heat exchanger. 
   
   
       9 . In combination:
 a vehicle body;   a water-cooled engine in said vehicle body and having an exhaust system;   a hydraulic pump in said vehicle body;   an air compressor in said vehicle body;   a heat exchanger, having inlet and outlet ends, in said vehicle body;   said hydraulic pump being in recirculating fluid connection with said heat exchanger so that the hydraulic fluid of said hydraulic pump is in recirculating communication with said heat exchanger;   a first fluid spray component storage tank in said vehicle body having an inlet and an outlet end;   a second fluid spray component storage tank in said vehicle body having an inlet end and an outlet end;   a proportioning pump having an inlet end and an outlet end;   said inlet end of said proportioning pump being in fluid communication with said first and second fluid storage tanks;   said outlet end of said proportioning pump being in fluid communication with said inlet end of said heat exchanger;   said outlet end of said heat exchanger being in fluid communication with a spray gun; and   the engine coolant of said engine being in recirculating fluid communication with said heat exchanger.   
   
   
       10 . The combination of  claim 9  wherein said engine in said vehicle body has an exhaust system including a water jacket associated therewith and wherein the water of said water jacket is in recirculating communication with said heat exchanger. 
   
   
       11 . The combination of  claim 9  wherein said engine in said vehicle body has an exhaust system and wherein said exhaust system is in communication with said heat exchanger. 
   
   
       12 . The combination of  claim 9  wherein said hydraulic pump is in recirculating fluid communication with said heat exchanger. 
   
   
       13 . The combination of  claim 9  wherein the lubricating fluid of said air compressor is in recirculating fluid communication with said heat exchanger.