MOBILE ALUMINUM COMPRESSORS FOR VEHICLES
ARE AVAILABLE IN THE FOLLOWING VERSIONS:
- As 2- and 4-cylinder compressors in cast iron or all-aluminum lightweight construction
- Semi-hermetic compressors with 2-pole drive motor
SEMI-HERMETIC 2-POLE ALUMINUM COMPRESSORS
Based on the HG standard compressors with their outstanding advantages and features, versions with 2-pole drive motor are available with up to 70% increased cooling capacity with the same external dimensions. This is made possible by doubling the speed at the same mains frequency. Together with the robust and reliable BOCK K valve plate, this results in the optimal solution for bus air conditioning and many other mobile applications.
Cooling Application:
- Bus and train air-conditioning
- Transport refrigeration
- Mobile cooling
SEMI-HERMETIC ALUMINUM COMPRESSORS
Product Quick Check
- 40% lighter than cast iron version due to lightweight aluminum construction
- Power control also possible digitally in wide bandwidth
- Reliable and efficient reciprocating piston technology with optimized valve plate system and low oil throw
- Highly efficient 4-pole and 2-pole electric motors
- Wear-resistant and durable power unit
More Benefits
- Particularly powerful and compact due to 2-pole drive motor (2,900 1/min - 50 Hz)
- Even more compact: reduced overall height of 300 mm due to optional terminal box
- Lockable metal terminal box for access restriction
- Terminal blocks with increased serviceability and railroad approval, shock and vibration resistant
- Fire protection class HL3 according to railroad standard EN 45545-2 also with special track painting
- Pressure lubrication with oil pump as standard
- Electronic motor protection
Reliable oil supply
- Oil pump lubrication independent of direction of rotation
- Minimal oil throw
- Service-friendly oil strainer
- Oil pressure monitoring possible
- Large-volume oil sump
- PTC oil sump heater, self-regulating for HG12 to HG34e
SEMI-HERMETIC ALUMINUM COMPRESSOR WITH 2-POLE DRIVE MOTOR
FOR PARTICULARLY POWER-INTENSIVE APPLICATIONS
For particularly power-intensive applications in refrigeration, such as mobile air conditioning, Bock offers compressor variants in 2-pole design.
The 2-pole drive motor ensures a speed of 2,900 1/min (for comparison: 4-pole 1,450 1/min) and a refrigerating capacity that is unprecedented in this size.
HG34 reciprocating compressors in 2-pole design are available in cast iron and lightweight aluminum construction. Like the standard series, the HG34 is optionally available with a low terminal box and an overall height of 300 mm.
Compressor performance increased to the maximum:
The BOCK valve plates K and N
The K valve plate was specially developed by BOCK for mobile air-conditioning applications. Due to the use of annular lamellas, it is designed for higher loads and is extremely robust against speed and pressure fluctuations as well as the effects of liquids. It has already been used hundreds of thousands of times in bus air conditioning and is the worldwide benchmark for quality and reliability.
Bock K valve plate advantages at a glance:
- Specially developed for bus air-conditioning
- Highest operational safety: loosely guided annular disc packs prevent bending and torsional forces
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Working valves made of high-quality, impact-resistant spring steel
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Extremely resistant and reliable at
- constant speed and pressure fluctuations
- exposure to liquids
- Weight-optimised valve plate made of aluminium
Worldwide proven valve design with reed lamellas clamped on one side. The valves are made of high-quality, impact-resistant spring steel. Limited load capacity compared to the K-valve plate at high speed and exposure to liquids.
Bock N valve plate Advantages at a glance:
- Cost-effective and simpler alternative to the K version
- Universal use in mobile applications
- Valve base plate made of steel
Electronic motor protection INT69 G
Functions:
- Motor temperature monitoring
- Hot gas temperature monitoring (accessory)
- Restart lockout
- Reset function
SEMI-HERMETIC MOBILE COMPRESSORS
3 Sizes and 14 Displacements
SEMI-HERMETIC MOBILE COMPRESSORS
Refrigerant Overview
SEMI-HERMETIC ALUMINUM COMPRESSORS
Type Code
- Series
- Ester oil filling X
- Size
- Number of cylinders
- e-series (efficiency) / Pluscom P
- Displacement
- Number of poles
- Motor version S
- Aluminum version
- Design variant with K valve plate
BOCK open compressors - F Series
Product brochure
BOCK semi-hermetic compressors, single- and two-stage (HG/HA)
Product catalogue