Rotary piston blower with foamed synthetic material surfaces run

Details Rotary piston blower with foamed synthetic material surfaces run Rotary piston blower with foamed synthetic material surfaces run

1987-11-06

1989-07-11

Vrablik, John J.

Rotary expansible chamber devices

Non-metallic working member, cylinder or partition

418178, 418179, 418201, 418206, 418151, F04C 1816, F04C 1818, F04C 2900

Patent

active

048466425

ABSTRACT:
A gap seal formed between surfaces cooperating with each other such that operation free of engagement between the cooperating rotor and housing parts with respect to each other at relative speeds occurs subject to a roughened light-metal surface of one part cooperating with a covering of foamed synthetic material on the other part so as to assure gap seal therebetween rather than having any metal-to-metal and/or foamed-material to foamed-material interengagement. The foamed synthetic material covering of a surface preferably is made of polyurethane and the light-metal surface is made of aluminum roughened by sandblasting or etching. The lightweight metal part can have cavities and recess spaces therein to be filled with foamed material as well as other fins, ribs, and anchoring provision for holding the foamed synthetic material bodies in place. The applicability of the cooperating surfaces of lightweight metal parts and foamed synthetic material parts includes rotary piston engines having different configuration of lobes of rotating pistons as well as cooperating surfaces of a spiral compressor and also a screw compressor for delivery of working medium free of oil and bearing grease.

REFERENCES:
patent: 2103524 (1937-12-01), Ernst
patent: 2491677 (1949-12-01), McCulloch
patent: 2754050 (1956-07-01), Wellington
patent: 2999466 (1961-09-01), Hornschuch et al.
patent: 3126834 (1964-03-01), Bursak
patent: 3396667 (1968-08-01), Schmitt
patent: 3558246 (1971-01-01), Philipp
patent: 3801241 (1974-04-01), Martin et al.
patent: 4466785 (1984-08-01), Biswas

Affiliated with

Also associated with

Rating

Rotary piston blower with foamed synthetic material surfaces run 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 piston blower with foamed synthetic material surfaces run, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotary piston blower with foamed synthetic material surfaces run will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-433157