Pure rotary positive displacement device

Pumps – Three or more cylinders arranged in parallel – radial – or... – Radial cylinders

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

417462, 418166, F04B 120

Patent

active

049155962

ABSTRACT:
A pure rotary positive displacement device includes a rotatably mounted circular cylindrical housing having an even number of equiangularly spaced, radial cylinders formed therein. A rotatably mounted piston carrier rotates in synchronization with the cylinder housing and supports at least one piston for movement within the cylinders. The central axis of the piston carrier is offset from the central axis of the cylinder housing, and each piston is spaced from the central axis of the piston carrier by the offset between the rotational axes of the piston carrier and the cylinder housing. The pistons and cylinders preferably have congruent conjugate surfaces to reduce leakage between the pistons and the cylinders, and the pistons are rotatably mounted to the piston carrier. The number of pistons is typically one-half the number of cylinders, and if multiple pistons are used, then they are spaced equiangularly about the piston carrier. When the device is designed to function as a pump or as a compressor, a fluid to be pumped or compressed is admitted to the cylinder housing and is forced from each cylinder as a piston advances toward the distal end thereof. A stationary cylinder head forms a sliding seal with the arcuate peripheral surface of the cylinder housing to exhaust fluid pumped, expanded or compressed by the pistons.

REFERENCES:
patent: 728157 (1903-05-01), Box
patent: 1166999 (1916-01-01), Loftus
patent: 1183309 (1916-05-01), Loftus
patent: 1599778 (1926-09-01), Loftus
patent: 1671565 (1928-05-01), Astrom
patent: 3241745 (1966-03-01), Williams
patent: 3367275 (1968-02-01), Workman
patent: 3810721 (1974-05-01), Eyer
patent: 3850150 (1974-11-01), Plevyak
patent: 4030458 (1977-06-01), Lamm
patent: 4057367 (1977-11-01), Moe et al.
Wilson, "Positive-Displacement Pumps", Product Engineering, Jun. 6, 1960, pp. 42-51.
Mahanay, "Gerotor Air Motor", Machine Design, Feb. 6, 1986, pp. 75-77.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Pure rotary positive displacement device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pure rotary positive displacement device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pure rotary positive displacement device will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2296604

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.