Our History – Our Timeline

Our History – Our Timeline

1984 Company founded in Portland, Oregon by Inventor Bob HYDE

  • Design and development of prototype pumps
  • First development of liquid line refrigerant pump
  • HY-SAVE technology established as a method of improving refrigeration efficiency

1986 First patent “maximizing refrigeration capacity and performance”

  • LPA pump introduced and established as trademark and brand
  • Sales and distribution for LPA pumps begin

1987 US distributor agreements

  • Distributors appointed in the USA and Canada
  • New style brochure “Tomorrows Refrigeration Technology Today” introduced

1989 Partner with US Gov. FEMP to support and document product efficiency and case studies

  • Introduced energy saving analysis and methods of determining efficiency
  • Improved performance and re-design of model 835 LPA pump

1990 New efficient TEFC motors for tougher environments

  • Introduced new testing platform, improved quality and R&D

1992 Joint Venture agreement with HY-SAVE UK to oversee European territories

1994 HY-DRY, a unique dehumidification process, established and patented

  • Established automated selection and sizing program to project efficiency
  • Filed numerous patents to protect LPA pump performance and operation
  • Set up and established refrigerant two phase flow research with LPA as a means of providing heat transfer between mediums
  • Expanded the network of regional distributors

1996 Plus 2 system for higher efficiency developed and patented

  • Expanded testing platform to include multi coupled pressure points
  • Improved facility to provide distributor and customer support.

1998 HY-SAVE IP, patents, designs and technology acquired by DTE Energy Technologies, Michigan, USA

  • Introduced first Pump-Pro 1 electronic pump induced pressure differential sequence control and protection module.
  • Developed new methods of heat transfer and system efficiency with two phase cooling mediums and methods.

2000 HY-SAVE organization of regional and international distributors and OEM’s established

  • Energy efficient refrigeration research and development taken global
  • Established PP2 Version 2, as a method to protect LPA® pumps from running dry based on induced liquid differential pressure and quality of liquid entering the pump.

2003 HY-SAVE UK acquires the IP, patents, designs, trademarks, existing non stopple distributor agreements and technology from DTE Energy Technologies, Michigan, USA

  • Terminated US distributor agreements and re organisation of existing channels
  • Continued research and development of LPA technologies including two phase non vapor compression cooling systems
  • Reorganized US manufacturing, introduced new stringent process and quality control for production requirements

2005 New assembly plant established in Europe audited by TUV Germany

  • Improved manufacturing process and quality control
  • PFEMA – Process Failure Effects Mode Analysis
  • Introduced Helium and Nitrogen testing facilities
  • Enhanced the range of HFC LPA pumps for higher operating pressures

2006 HY-SAVE USA opens in Tampa, Florida

  • Launched cost effective remote energy monitoring device with built in Ethernet and GPRS
  • Continued development of new methods to remove moisture in cold rooms in combination with HY-DRY

2007 Pressure testing facilities enhanced to accommodate natural refrigerant pressures and process control

2008 HFC range of LPA pumps redesigned for higher operating pressures

  • Introduced more stringent quality control and specifications
  • Launched 3rd generation pump protection and control
  • Enhanced range of LPA pumps compatible with Co2 pressures

2009 HY-SAVE offices open in Dandong, China

  • Launched Model PM8 Range of LPA pumps
  • Introduced mass manufacturing and control process of LPA pumps

2010 Pump Protection module 3 to include free cooling operation and protection launched

  • Certified UL / PED Models 833, 860 and 875 for Co2 sub-critical applications

2011 Automated energy monitoring to precisely measure energy consumption launched

  • Super model 925 LPA pump for HFC and Co2 applications, maximum working pressures at 75 bar (1087 psi) introduced

2012 Official launch of model 925 for cascade Co2 DX Free Cooling applications worldwide.

  • Increased production of model 809 for mass manufacturing to suite a wide range of domestic / light commercial Co2 refrigeration applications.
  • Engineered solutions to overcome -40F working temperatures specific to model 925
  • Consultation with HY-SAVE Engineering to propose new super model 975 to accommodate single circuit 400 tons of refrigeration energy savings with LPA®
  • UL Fatigue and Pressure testing of model 925 certification awarded

2013 Design and development of Phase 1 solar refrigeration with ejector LPA® pumps.

  • Continued development of LPA® Liquid Refrigerant Pump to boost liquid pressure to 540 psi (37 bar) with ejector evaporating temperatures of -9°C (15F) annually.
  • Continued development and completion of new super critical Co2 liquid pump design working pressure, 124 bar (1,800 psi) within the flow rate region of 1 to 9GPM

2014 Official launch of LPA® Model 809-NH3

  • Testing of Liquid Injection into Screw compressors HP port for compressor cooling in high ambient countries.
  • Design and development new Ammonia LPA® pump for natural refrigerant applications. Design pressure rated at 540 psi.
  • Design and development of the world’s first in-line and auxiliary (TES) Thermal Energy Storage solutions for air conditioning and refrigeration systems.
  • Development of new type Propane LPA® pump for greener refrigeration applications.
  • Development of Sub-Zero -40F LPA Model 860 for Arctic environments.

2015 “Refrigeration on Demand” ™ The Cascade Thermal Storage Option introduced

  • Design and development of a new higher pressure model 860-SS rated at 75 bar for Co2 DXFC applications.
  • Continued development of model 875-SS high pressure hold capacity LPA® pump for Co2 applications.

2016 Cylinder head and Screw cooling technology relaunch.

  • Set up and commissioning of the worlds first Latent heat Cascade Thermal Storage facility for supermarket DX refrigeration systems.
  • Official launch of LPA® Model 860-SS-050 rated at 50 bar comes with standard AC&R copper tube connections for ease of brazing.
  • Model 875-SS-060 enhanced design PS60 for tougher environments upgrade initiative started incorporating K65 material.
  • Investigation of Nitrogen and associated cooling benefits versus vapor compression refrigeration systems.


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