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US 12,723,532 B2Granted
Exhaust heat conductor pipe system for scavenging waste heat
OwnerCharles Boxinventor
Life of this patent
Estimating the term…
Abstract
An exhaust heat conductor pipe system including a tube operatively associated with a pipe section for receiving heated combustion exhaust gas, the tube being in a helical configuration and including a plurality of lateral loops, wherein each lateral loop is in contact with at least one other lateral loop and the wall of the pipe section.
Claims6
An exhaust heat conductor pipe system, comprising:
- a) an exhaust pipe section configured to convey exhaust gas, the exhaust pipe section including a longitudinal tubular wall defining an inner pipe surface, a space for the flow of exhaust gas and an outer pipe surface;
- b) a helical tube operatively associated with the exhaust pipe section, the helical tube including an inlet, an outlet, and a plurality of lateral loops formed in the exhaust pipe section so as to wind helically between the inlet and the outlet, each lateral loop including:
- (i) a first portion being in contact with at least one adjacent lateral loop of the plurality of lateral loops, and (ii) a second portion being in contact with the inner pipe surface of the longitudinal tubular wall;
- and
- c) an insulator layer in a radially outer position relative to the helical tube;
- and
- d) a shield layer disposed between the helical tube and the space for the flow of exhaust gas.
4 more elements
An exhaust heat conductor pipe system, comprising:
- a) an exhaust a pipe section configured to convey exhaust gas, the exhaust gas pipe section including a longitudinal tubular wall defining an inner pipe surface, a space for the flow of exhaust gas and an outer pipe surface;
- b) a helical tube operatively associated with the exhaust pipe section, the helical tube including an inlet, an outlet, and a plurality of lateral loops formed in the exhaust pipe section so as to wind helically between the inlet and the outlet, each lateral loop being in contact with:
- (i) at least one adjacent lateral loop of the plurality of lateral loops, and (ii) the inner pipe surface of the longitudinal tubular wall;
- c) an insulator layer in a radially outer position relative to the helical tube, the insulator layer being in contact with the outer pipe surface of the longitudinal tubular wall;
- and
- d) a shield layer disposed between the helical tube and the space for the flow of exhaust gas, wherein the shield layer comprises a corrosion-resistant material capable of heat transfer.
3 more elements
An exhaust heat conductor pipe system, comprising:
- a) an exhaust pipe section configured to convey exhaust gas, the exhaust gas pipe section including a longitudinal tubular wall defining an inner pipe surface, a space for the flow of exhaust gas and an outer pipe surface;
- b) a helical tube operatively associated with the exhaust pipe section, the helical tube including an inlet, an outlet, and a plurality of lateral loops formed in the exhaust pipe section so as to wind helically between the inlet and the outlet, each lateral loop including:
- (i) a first portion being in contact with at least one adjacent lateral loop of the plurality of lateral loops;
- and (ii) a second portion being in contact with the inner pipe surface of the longitudinal tubular wall;
- c) an insulator layer in a radially outer position relative to the helical tube, the insulator layer being in contact with the outer pipe surface of the longitudinal tubular wall;
- and
- d) a shield layer disposed between the helical tube and the space for the flow of exhaust gas, wherein each lateral loop includes a third portion in contact with the shield layer.
4 more elements
Dependencies are inferred from the claim text.