Internal combustion engine testing with thermal simulation of additional cylinders

An engine testing device comprising:

• a. an internal combustion engine including an engine cylinder bounded by a cylinder block;
• b. a flow passage defined in the cylinder block adjacent the cylinder;
• c. first and second fluid supplies wherein:
• (1) the first and second fluid supplies bear fluids, with the fluid of the first fluid supply being at a different temperature than the fluid of the second fluid supply;
• (2) the first and second fluid supplies are connected in fluid communication with the flow passage, with at least one of the connections being adjustable, whereby the proportions of fluid supplied by the first fluid supply and second fluid supply may be varied.

An engine testing device comprising:

• a. an internal combustion engine including:
• (1) an engine cylinder bounded by a cylinder block,
• (2) a flow passage defined in the cylinder block adjacent the cylinder, and
• (3) a fluid supply supplying the flow passage with fluid;
• b. a processor generating virtual cylinder temperature data which is representative of the temperatures about at least one virtual cylinder of the internal combustion engine, wherein each virtual cylinder:
• (1) is not physically present in the internal combustion engine, and
• (2) simulates the performance of an actual cylinder present in the internal combustion engine adjacent the engine cylinder;
• wherein the processor controls the fluid supply to adjust the temperature of the engine cylinder about the flow passage to simulate the actual presence of the virtual cylinder adjacent the engine cylinder.