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INTRODUCTION TO
OIL FREE AMBIENT AIR COMPRESSORS
Hycomp oil free ambient air compressors (compressors
taking their inlet from the air around you) are unique
in the industry due to their small size, extended lower
end life, and open crosshead design. The crankcase is
pressure oil lubricated, providing extended bearing life
in the main, connecting rod and wrist pin bearings. The
open crosshead allows any oil vapors that may escape
from the crankcase to be vented to atmosphere,
thereby preventing their entrainment in the compressed
gas stream.
Hycomp oil free compressors are designed for heavy,
industrial duty service. Slower compressor speeds
prevent heat buildup, increase valve effi ciency, and
increase overall life expectancy of wearing parts.
Hycomp’s crosshead design places the side thrust
developed by the connecting rod onto the oil lubricated
crosshead piston/cylinder. By removing this side
thrust from the compression piston, the piston rings
provide an extended life expectancy, in comparison to
permanently sealed ball bearing, ‘oil-less’ designs.
Hycomp air compressor cylinders and cylinder heads
are single piece iron castings. This significantly
decreases warpage problems associated with
aluminum cylinders/heads. Additionally, iron is
inherently vibration dampening.
All Hycomp air compressors are tested at the factory
to ensure they meet contractual requirements. When
properly installed, the air compressor should be ready
and able to provide the reliable service Hycomp
customers have come to trust and appreciate.
CYLINDER HEAD
OIL PUMP
COMPRESSION
CYLINDER
FLYWHEEL
CROSSHEAD
CYLINDER
OIL-SCRAPERS
UNLOADER
TOWER
COMPRESSION
PISTON
CRANKCASE
CONNECTING
ROD
CROSSHEAD
PISTON
OIL FILTER
PISTON ROD
Figure 1: Cutaway of an ambient Air Compressor
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