A solution for every demand
Different applications need different solutions in terms of machine concepts and machine sizes. Regardless of if you want to compress or expand working fluids, OBRIST Engineering can offer the full service of technology selection and development of compressors and expanders.
SCROLL
One of its main advantages is the superior noise level, which makes it especially suitable for hybrid and electric cars.
The Smooth Technology
For more than 15 years we have designed and developed various scroll compressors and expanders. The range goes from 4 to more than 200 cm³ per revolution, pressures from 80mbar to 140bar and various working fluids like Air, R744, Ethanol, and Propane. These days, hybrid and electric vehicles require highly efficient, low noise eScroll compressors from 48 to 800V.
Appropriate Solutions Achieved By:
- eScroll Family Concepts
- A/C and Heat Pump Applications
- Backpressure Systems
- Offset & Variable Scroll Geometry
- TipSeal-less Scrolls
- Simplified Housing Concepts
- Smart Electric Lead-through
- Assembly Line Concepts
- Avoiding Electronic Rejects
PISTON
With several patents and the development of the first automotive R744 compressor in mass market, we can offer profound knowledge for mobile and stationary.
The Variable Technology
With over 20 years of experience in the field of axial, radial, inline and other piston compressor applications, we can offer profound and deep experience for multiple applications.
First Series R744 Compressor Worldwide
- Variable Piston Machine (with up to 33cc)
- High Efficiency and Low Weight
- Super Compact Design
- Ready for Heat Pump Application
STATIONARY
We have developed compressors for various application areas, such as several R744 development projects from 10kW up to 100kW.
Very High Efficiency
Stationary refrigeration and air condition compressors have to be designed robustly and low cost at the same time. High efficiency gives customers quick running-cost benefits. We design piston or scroll type compressors, typically hermetic design, for this application field.
Stationary Piston Compressor with 100kWe
Applications: Supermarket and Refrigeration Plants
- Using Compactness of R744 Properties
- Smart Heat Management for Highest Efficiencies
- Improved Valve System for High Speed
- Active Oil Separation and Intelligent Oil Management
- Electrically Piston Compressor with inline or “V” Geometry
Technology chosen
for you
We can offer the full services needed for development from A-D sample. Depending on customer needs and requests, a handover of project can happen at any stage in the development. We typically supports the handover and customer installation processes with consultancy.
Designing with state of the art product development processes. Field of competence reaches from concept studies to state of production level.
- Minimised Failure Rate
- Optimisation (from existing samples)
- Testing and Validation Process
- DFMEA / PFMEA / Control Plan
- Quality Audits, Concept and Detail Definition
- Continuous Improvement
Transport cooling
Our R&D activities have opened new markets for R744-based systems. This is supported by the legislature and their desire to phase-out harmful refrigerants.
We make transport cool
Compressors for transport cooling require 2-stage solutions for increased operation map and intelligent compressor/system control. We combine the experiences of various fields to find the best solution for customer application.
Compressor Development for Transport Cooling Systems:
- Applications: Truck and Trailer, Container (Reefer)
- Single and Two Stage Machines
- Multi-refrigerant Systems