Pressure washer with heat transfer unit for hot water discharge

B - Operations – Transporting – 08 – B

Patent

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Details

B08B 3/10 (2006.01) B05B 7/02 (2006.01) B08B 3/02 (2006.01) B08B 13/00 (2006.01) F02G 5/02 (2006.01) F28D 7/02 (2006.01)

Patent

CA 2663643

A pressure washer is provided. The pressure washer includes a water inlet port for receiving water from a water source. A water outlet port is in fluid communication with the water inlet port. A pump is in fluid communication with the water inlet port and the water outlet port for pressurizing the water received through the water inlet port and pumping the pressurized water through the water outlet port. An internal combustion engine powers the pump. A heat transfer unit is interposed between and in fluid communication with the water inlet port and the water outlet port. The heat transfer unit receives exhaust gas from the internal combustion engine and uses the exhaust gas to heat the water as it travels between the water inlet port and the water outlet port.

L'invention concerne un appareil de nettoyage sous pression. L'appareil de nettoyage sous pression comporte un orifice d'entrée d'eau afin de recevoir de l'eau provenant d'une source d'eau. Un orifice de sortie d'eau est en communication fluidique avec l'orifice d'entrée d'eau. Une pompe est en communication fluidique avec l'orifice d'entrée d'eau et avec l'orifice de sortie d'eau pour pressuriser l'eau reçue à travers l'orifice d'entrée d'eau et pomper l'eau pressurisée à travers l'orifice de sortie d'eau. Un moteur à combustion interne alimente la pompe. Une unité de transfert de chaleur est interposée et en communication fluidique avec l'orifice d'entrée d'eau et l'orifice de sortie d'eau. L'unité de transfert de chaleur reçoit un gaz d'échappement provenant du moteur à combustion interne et utilise le gaz d'échappement pour chauffer l'eau à mesure qu'elle se déplace entre l'orifice d'entrée d'eau et l'orifice de sortie d'eau.

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