The Earth Heat Exchanger (EHX) is the critical component of geothermal heating/cooling systems - and EnLink's focus of superiority.
EnLink Patents
U.S. Patents
EnLink applies a number of proprietary technologies to all phases of EHX installation,
including patents for processes and apparatuses, proprietary software and technical
know-how.
For example, our proprietary Coiled Tubing Unit (CTU) is used for simultaneously
installing a plastic pipe loop and a grout tremmie pipe into a previously drilled
hole and then grouting the pipe loop in the wellbore as the tremmie pipe is
withdrawn. This technology ensures that a wellbore is completely grouted from
the bottom of the hole to the top. This process, and the EnLink U-bend used in
the process, are protected under the following U.S. patents:
In addition,
EnLink has developed a superior method of drilling EHX well bores using its patented sonic
technology. This method enables EnLink to drill and keep holes open in all
types of soil conditions and geology.
Drilling Unit
We have also created a unique method of metering the amount of energy extracted
from or rejected to the earth in EHX heat pump installations. Accurate metering
enables invoicing an end user or allocation of of charges
to multiple end users if desired. This process is protected under the following
U.S. patents:
EnLink's exclusive system for increasing
the efficiency of EHX heat pump systems utilizes
excess heat generated by air conditioning
systems to generate electricity, reducing
the heat load on the EHX system. This process
is protected under the following U.S. patent:
Several of the above patents have been approved by countries participating in international treaties governing such patent authorization throughout Europe and in major industrialized countries around the world. Please contact EnLink directly for more information.
