Rotary type compressor

Details Rotary type compressor Rotary type compressor

1995-10-10

1997-01-07

Freay, Charles G.

Rotary expansible chamber devices

Specific material

F01C 2100

Patent

active

055910238

ABSTRACT:
A compressor comprising a roller made of a cast iron which has a hardness of HRC 50 or more after heat treatment, and contains not less than 5 area % of graphite, and not less than 2 area % of crystallized eutectic structure including iron phosphide, and either a vane made of a material which has a hardness of HRC 70 or more after heat treatment and contains not less than 25 area % of undissolved carbides and nitride particles in total, the undissolved carbides including not less than 10 area % of MC type carbides, the nitride particles including at least one of TiN and NbN of not less than 5 area %, the undissolved carbides and the nitride particles having a mean grain size of not more than 5 .mu.m, or a vane made of a material including at least one of TiN and NbN particles of not less than 5 area %, the TiN and NbN particles having a mean grain size of not more than 5 .mu.m, the material essentially consisting of, by weight, 2.0 to 4.0 % of C, not more than 2.0 % of Si, not more than 1.5 % of Mn, 2.5 to 8.0 % of Cr, 20 to 40 % of W+2Mo, 3.0 to 15 % of V, not more than 15 % of Co, and the balance of Fe, the material having a hardness of HRC 65 or more after heat treatment.

REFERENCES:
patent: 5423664 (1995-06-01), Lizuka et al.

Affiliated with

Also associated with

Rating

Rotary type compressor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rotary type compressor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotary type compressor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1759797