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US 2023/0067959 A1Published application
Hot water pressure washer
AssigneeVentech, LLC
InventorsJeremy Sanger, Franco Garavoglia
Life of this patent
Estimating the term…
Abstract
A hot water pressure washer employs an internal combustion engine with a drive shaft having an exhaust manifold fluidly connected to an exhaust water heat exchanger. The engine is driveably connected to a hydrodynamic heater, and a high-pressure pump for generating a stream of high-pressure fluid. The hot water pressure washer captures 80-90% of the thermal energy generated during combustion processes of the engine for heating water.
Claims19
A hot water pressure washer, comprising:
- an internal combustion engine including a drive shaft to create rotational torque;
- said engine including an engine idle throttle control;
- and an exhaust manifold;
- an exhaust/water heat exchanger fluidly connected to said engine manifold;
- said internal combustion engine fluidly connected to a fuel source;
- a hydrodynamic heater operably connected to the internal combustion engine;
- said internal combustion engine having a drive shaft to impart rotational torque;
- said hydrodynamic heater driveably connected to said drive shaft and powered by rotational torque to create load on said engine;
- said hydrodynamic heater including a water inlet port and a water outlet port;
- a high pressure pump operably connected to the internal combustion engine;
- said high pressure pump powered by said rotational torque to create load upon said engine;
- said high pressure pump including a water inlet port and a water outlet port;
- an air/water heat exchanger having a water inlet port connectable to a water source and a water outlet port fluidly connected to the water inlet port of the hydrodynamic heater;
- a water flow pathway to facilitate directional water movement from said air/water heat exchanger water inlet, through said air/water heat exchanger and through the air/water heat exchanger water outlet port to said hydrodynamic heater water inlet port, through the hydrodynamic heater, through the hydrodynamic water outlet port to a water inlet port on said exhaust/water heat exchanger, through said exhaust/water heat exchanger, through an exhaust/water heat exchanger water outlet port to the water inlet port on the high pressure pump;
- through the high pressure pump to the high pressure pump water outlet port to a water inlet port on an unloader valve to a water outlet port on the unloader valve responsive to a manually operated restrictor valve.
12 more elements
A hot water pressure washer, comprising:
- an internal combustion engine including a drive shaft to create rotational torque;
- said engine including an engine idle throttle control;
- an exhaust manifold;
- an Exhaust/Water Heat Exchanger fluidly connected to said engine manifold;
- a hydrodynamic heater operably connected to the internal combustion engine drive shaft;
- said hydrodynamic heater powered by said rotational torque to create load on said internal combustion engine;
- said hydrodynamic heater including a water inlet port and a water outlet port;
- a high pressure pump operably connected to the internal combustion engine drive shaft;
- said high pressure pump powered by said rotational torque to create load upon said engine;
- said High Pressure Pump including a water inlet port and a water outlet port;
- an unloader valve having a water inlet port fluidly connected to said high pressure pump water outlet port;
- said unloader valve further equipped with a water outlet port;
- an air/water heat exchanger having a water inlet port connectable to a water source;
- said air/water heat exchanger having a water outlet port fluidly connected to the water inlet port of the hydrodynamic heater;
- an engine oil cooler having an oil inlet port fluidly connected to the internal combustion engine;
- an oil outlet port fluidly connected to the internal combustion engine;
- and
- a water flow pathway to facilitate directional water movement from said air/water heat exchanger inlet, through said air/water heat exchanger and through its water outlet port to said hydrodynamic heater inlet port;
- through the hydrodynamic heater and to the hydrodynamic heater water outlet port;
- through the hydrodynamic heater water outlet port to the high pressure pump water inlet port;
- through the high pressure pump to the high pressure pump water outlet port;
- through the high pressure pump water outlet port to a water inlet port said exhaust/water heat exchanger;
- through said exhaust/water heat exchanger;
- through the exhaust/water heat exchanger water outlet port to the water inlet port on said unloader valve;
- through the unloader valve and through a water outlet port on said unloader valve responsive to a manually operated restrictor valve.
22 more elements
Dependencies are inferred from the claim text.