Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
198 words
IN A ROTARY INTERNAL COMBUSTION ENGINE HAVING A NARROW CHAMBER BOUNDED BY A PAIR OF FLAT SIDE WALLS AND AN END WALL JOINING SAID SIDE WALLS, A ROTOR MOUNTED FOR PLANETARY MOVEMENT IN SAID CHAMBER AND IN CLOSE SPACING WITH EACH OF SAID SIDE WALLS, SAID ROTOR CARRYING ANNULAR SEALS TO SLIDINGLY ENAGE SAID SIDE WALLS FOR DEFINING A SHIFTING OIL CHAMBER IN THE SPACING BETWEEN SAID ROTOR AND EACH OF SAID SIDE WALLS, THE COMBINATION COMPRISING: A. MEANS FOR SUPPLYING SAID OIL CHAMBERS WITH A CONTINUOUS FLOW OF OIL, B. A SELF-FUSED PARTICLE COATING ACROSS THE ENTIRE AREA OF EACH OF SAID FLAT SIDE WALLS, SAID COATING BEING COMPRISED OF AN ADMIXTURE OF STAINLESS STEEL AND NICKEL-BASED ALLOY POWDERS OF GENERALLY EQUAL HARDNESS, AND C. RESIN IN SAID COATING EFFECTIVE TO CLOSE THE PORES THEREIN BELOW THE SURFACE OF SAID COATING WITHOUT CLOSING THE PORES ADJACENT THE COATING SURFACE TO THEREBY PROVIDE A CONTROLLED POROSITY OF 2-3 PERCENT OF THE VOLUME OF SAID COATING, SAID RESING BEING SELECTED FROM THOSE MATERIALS WHICH DECOMPOSE AT THE ENGINE OPERATING TEMPERATURE, HAVE A STRONG ADHERENCY TO THE METALLIC SELF-FUSED PARTICLE COATING, AND HAVE A HIGH RESISTANCE TO DISOLVEMENT IN OIL.
Claim 2
Dependent Claim
198 words
IN A ROTARY INTERNAL COMBUSTION ENGINE HAVING A NARROW CHAMBER BOUNDED BY A PAIR OF FLAT SIDE WALLS AND AN END WALL JOINING SAID SIDE WALLS, A ROTOR MOUNTED FOR PLANETARY MOVEMENT IN SAID CHAMBER AND IN CLOSE SPACING WITH EACH OF SAID SIDE WALLS, SAID ROTOR CARRYING ANNULAR SEALS TO SLIDINGLY ENAGE SAID SIDE WALLS FOR DEFINING A SHIFTING OIL CHAMBER IN THE SPACING BETWEEN SAID ROTOR AND EACH OF SAID SIDE WALLS, THE COMBINATION COMPRISING: A. MEANS FOR SUPPLYING SAID OIL CHAMBERS WITH A CONTINUOUS FLOW OF OIL, B. A SELF-FUSED PARTICLE COATING ACROSS THE ENTIRE AREA OF EACH OF SAID FLAT SIDE WALLS, SAID COATING BEING COMPRISED OF AN ADMIXTURE OF STAINLESS STEEL AND NICKEL-BASED ALLOY POWDERS OF GENERALLY EQUAL HARDNESS, AND C. RESIN IN SAID COATING EFFECTIVE TO CLOSE THE PORES THEREIN BELOW THE SURFACE OF SAID COATING WITHOUT CLOSING THE PORES ADJACENT THE COATING SURFACE TO THEREBY PROVIDE A CONTROLLED POROSITY OF 2-3 PERCENT OF THE VOLUME OF SAID COATING, SAID RESING BEING SELECTED FROM THOSE MATERIALS WHICH DECOMPOSE AT THE ENGINE OPERATING TEMPERATURE, HAVE A STRONG ADHERENCY TO THE METALLIC SELF-FUSED PARTICLE COATING, AND HAVE A HIGH RESISTANCE TO DISOLVEMENT IN OIL.
Claim 3
Dependent Claim
23 words
The combination as in claim 1, in which said resin is a thermosetting epoxy phenolic which decomposes at a temperature of about 400*F.
Claim 4
Dependent Claim
35 words
The combination as in claim 1, in which a carbon deposit resides in the open pores adjacent the surface of said coating serving to additionally provide dry lubrication for the sliding seals against said coating.
Claim 5
Dependent Claim
47 words
The combination as in claim 1, in which a thermal gradient exists within the coating and side housing wall so that resin closing the pores adjacent said surface decomposes an under engine operation to liberate gases and leave a dry lubricant deposit in the form of carbon.
Claim 6
Dependent Claim
31 words
The combination as in claim 1, in which the coating has a thickness of 15-25 mils and the non-closed pores extend from said coating surface to an extent of 2-4 mils.
Claim 7
Dependent Claim
65 words
The combination as in claim 1, in which the seals are comprised of a metallic substrate coated with chromium, one edge of said chromium being in contact with said self-fused Particle coating on said housing to scrape thereacross during shifting of said oil chamber, said 2-3 percent porosity facilitating a supply of oil to maintain an oil film on said coating to lubricate said scraping.