Apex seal for rotary piston engines

Patent · Tue Sep 15 00:00:00 EDT 1987

OSTI ID:5908164

Shimizu, T; Miyata, J; Yagii, K

This patent describes an apex seal for rotary piston engines comprising a substrate of an iron-based material having a sliding surface portion having a thickness of 1.5 to 3.5 mm. The sliding surface portion being formed by dispersing a Co-Mo-Si intermetallic compound into an iron-based material to produce a matrix of Co-Mo-Si-Fe alloy formed by Fe content in the iron-based material which is molten when the Co-Mo-Si intermetallic compound is dispersed in the iron-based material and the Co-Mo-Si intermetallic compound dispersed in the matrix in an amount of 25 to 60 vol.%, the matrix containing less than 25 weight % of Fe.

• Assignee: Mazda Motor Corp., Hiroshima
• Patent Number(s): US 4693942
• OSTI ID: 5908164
• Resource Relation: Patent File Date: Filed date 7 Jan 1986
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
36 MATERIALS SCIENCE
INTERNAL COMBUSTION ENGINES
SEALS
CHEMICAL COMPOSITION
CHEMICAL PREPARATION
DESIGN
COBALT ALLOYS
INTERMETALLIC COMPOUNDS
IRON ALLOYS
IRON COMPOUNDS
MELTING
MOLYBDENUM ALLOYS
PISTONS
QUANTITY RATIO
ROTATION
SILICON ALLOYS
SLIDING FRICTION
TERNARY ALLOY SYSTEMS
WEIGHT
ALLOY SYSTEMS
ALLOYS
ENGINES
FRICTION
HEAT ENGINES
MOTION
PHASE TRANSFORMATIONS
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
330100* - Internal Combustion Engines
360101 - Metals & Alloys- Preparation & Fabrication
360601 - Other Materials- Preparation & Manufacture