Title:
CONCENTRIC TYPE PNEUMATIC MOTOR
Document Type and Number:
WIPO Patent Application WO/2023/063770
Kind Code:
A1
Abstract:
Disclosed is a concentric type pneumatic motor comprising: a case having a cylindrical inner space; and a rotor having a rotational center shaft, which is concentric with respect to the rotational center axis of the case, being provided in the case and having a diameter that corresponds to the inner diameter of the case, thereby rotating around the rotational center shaft inside the case, wherein both ends of the case in the direction of the center axis are finished by means of finishing plates, when viewed from one side in the direction of the center axis, at least one finishing plate has at least one air injection port and air discharge port aligned on a circumference that is smaller than the circumference formed by the inner diametral surface of the case, grooves are formed, to be long in the direction of the rotational center shaft, on the side surface of the rotor so as to overlap with the air injection ports and the air discharge ports, on one side surface when viewed in the direction of the center axis, at least a portion of the groove sequentially overlaps with the air injection ports and the air discharge ports while the rotor rotates, and movable pieces, of which protruding degrees change while coming in contact with the side surface of the rotor, are provided on the inner diametral surface of the case so as to first meet the grooves before the groove overlaps with the air injection port with respect to the rotational direction.
More Like This:
| JPS5452211 | DISPLACEMENT TYPE ROTARY MACHINE |
| WO/1994/009261 | INTERNAL COMBUSTION ENGINE, COMPRESSOR AND COMPRESSED-AIR ENGINE |
| JPS59218383 | ROTARY TYPE HYDRAULIC MACHINE |
Inventors:
CHOI WON SEOK (KR)
Application Number:
PCT/KR2022/015582
Publication Date:
April 20, 2023
Filing Date:
October 14, 2022
Export Citation:
Assignee:
EXDL CO LTD (KR)
International Classes:
F01C1/332; F01C21/08; F01C21/10; F01C21/18; F15B11/06; F15B21/00
Foreign References:
| KR102227744B1 | 2021-03-15 | |||
| KR20110014246A | 2011-02-10 | |||
| KR20170016930A | 2017-02-14 | |||
| US20090114184A1 | 2009-05-07 | |||
| JP2009047028A | 2009-03-05 |
Attorney, Agent or Firm:
SEWON PATENT LAW FIRM (KR)
Download PDF: