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EP-4737682-A1 - ROTARY HIGH PRESSURE GAS ENGINE

EP4737682A1EP 4737682 A1EP4737682 A1EP 4737682A1EP-4737682-A1

Abstract

A rotary high pressure gas engine (1) includes: a stator mechanism (10) including two stators (11A, 11B) forming a track (12) therebetween; a rotor (20) rotatably arranged between the stators (11A, 11B) and including cylinders (21) and perorations (22) open on an outer surface of the rotor (20) and communicating with the cylinders (21); a mandrel (30) disposed through the stator mechanism (10) and the rotor (20); pistons (40) respectively received in the cylinders (21) and respectively including piston shafts (41) movable along the track (12), an engine lubricating system being formed between the cylinders (21), pistons (40) and stators (11A, 11B); and gas covers (50) radially movable, resiliently disposed on the stator mechanism (10) and covered on the rotor (20); wherein when a gas injection space (S) between the gas cover (50) and the rotor (20) communicating with the perorations (22), high-pressure gas can flow to enter the cylinders (21) to drive the pistons (40); wherein when the gas injection space (S) is not in communication with the perorations (22), the pistons (40) move to discharge high-pressure gas in the cylinders (21) via the perorations (22).

Inventors

  • CHANG, SHIH-HO

Assignees

  • Chang, Shih-Ho
  • Chang, Han-Chih
  • Chang, Hsin-Yu

Dates

Publication Date
20260506
Application Date
20241030

Claims (9)

  1. A rotary high pressure gas engine (1) including: a stator mechanism (10) including two stators (11A, 11B) and two stator seals (17), each of the two stators (11A, 11B) including an annular guide groove (111) and two stator grooves (16) extending radially inside and outside the annular guide groove (111), the annular guide grooves (111) of the two stators (11A, 11B) axially corresponding to each other to form a track (12), the two stator seals (17) being embedded in and clamped between the annular guide grooves (111) of the two stators (11A, 11B); a rotor (20) rotatably arranged between the two stators (11A, 11B) and including a plurality of cylinders (21) and a plurality of perorations (22), a cylinder wall (211) of each cylinder (211) including a plurality of slots (212), the plurality of perorations (22) being open on an outer circumferential surface of the rotor (20) and respectively in communication with interiors of the plurality of cylinders (21); a mandrel (30) including a plurality of axial ventilation grooves (31) corresponding to the plurality of cylinders (21), disposed through the stator mechanism (10) and the rotor (20), and movable with the rotor (20); a plurality of pistons (40), each of upper and lower ends of each of the plurality of pistons (40) including a piston seal (44), the plurality of pistons (40) being respectively received in the plurality of cylinders (21) and respectively including piston shafts (41) which project axially beyond the plurality of slots (212) and are movable along the track (12), a space in which each of the plurality of pistons (40) and the piston seal (44) are movable in the cylinder 21, a space between the two stator seals (17) of the stator mechanism (10) and the plurality of slots (212) being in communication with one another to form an engine lubricating system; and a plurality of gas covers (50) radially movable respectively, resiliently disposed on the stator mechanism (10) and covered on an outer circumferential surface of the rotor (20), a gas injection space (S) being formed between each gas cover (50) and the outer circumferential surface of the rotor (20), each of the plurality of gas covers (50) including a gas supplying passage (51) in communication with the gas injection space (S) and configured for entering high pressure gas; wherein when the gas injection space (S) is in communication with the plurality of perorations (22), the high pressure gas enters the gas injection space (S) via the gas supplying passage (51) of each of the plurality of gas covers (50) and enters the plurality of cylinders (21) via the plurality of perorations (22) to drive the plurality of pistons (40) to move radially inward so that the rotor (20) rotates relative to the stator mechanism (10); wherein when the gas injection space (S) is not in communication with the plurality of perorations (22), the piston shafts (41) of the plurality of pistons (40) move along the track (12) to move radially outward to discharge high pressure gas in the plurality of cylinders (21) via the plurality of perorations (22).
  2. The rotary high pressure gas engine (1) of claim 1, wherein the stator mechanism (10) further includes a plurality of bolts (13) and a plurality of bolt sleeves (14), the two stators (11A, 11B) each further include a plurality of through holes (112), the plurality of bolt sleeves (14) are abutted between the two stators (11A, 11B), and the plurality of bolts (13) are disposed through the plurality of through holes (112) of the two stators (11A, 11B) and the plurality of bolt sleeves (14).
  3. The rotary high pressure gas engine (1) of claim 1, wherein the rotor (20) includes a rotor body (23) and an annular member (24) annularly disposed around the rotor body (23), the rotor body (23) includes the plurality of cylinders (21), the annular member (24) includes the plurality of perforations (22), and an annular recess (213) is formed around a periphery of a top portion of each of the plurality of cylinders (21) and receives a seal ring (214) between the rotor body (23) and the annular member (24).
  4. The rotary high pressure gas engine (1) of claim 3, wherein the annular member (24) further includes a plurality of concavities (241) circumferentially arranged at intervals.
  5. The rotary high pressure gas engine (1) of claim 1, further including a plurality of cover shafts (60) and a plurality of tension springs (70), wherein the two stators (11A, 11B) each further include a plurality of stator holes (113), the plurality of cover shafts (60) are radially movably disposed in the plurality of stator holes (113) respectively, and the plurality of tension springs (70) are connected between the stator mechanism (10) and the plurality of cover shafts (60) respectively.
  6. The rotary high pressure gas engine (1) of claim 5, wherein each of the plurality of stator holes (113) extends radially in the stator mechanism (10).
  7. The rotary high pressure gas engine (1) of claim 1, wherein each of the plurality of pistons (40) includes an annular groove (42) for storing oil.
  8. The rotary high pressure gas engine (1) of claim 1, wherein each of the plurality of gas covers (50) further includes at least one oil filling hole (54) facing the outer circumferential surface of the rotor (20).
  9. The rotary high pressure gas engine (1) of claim 1, wherein an annular end surface of each of the plurality of gas covers (50) further includes a cover seal (52), and the cover seal (52) contacts the outer circumferential surface of the rotor (20).

Description

BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to an engine, and more particularly, to a rotary engine powered by high-pressure steam or gas. Description of the Prior Art Nowadays, engines play an important role in various fields such as transportation, industrial machinery, and other power-demanding areas. Conventional engines operate through the cooperation of components such as cylinders, pistons, crankshafts, and valves. In conventional internal or external combustion engines, they achieve a complete power cycle by undergoing several strokes. The invention of the steam engine in the 18th century initiated the first industrial revolution, leading humanity into an era of mechanized production. This highlights the importance of steam engines in human civilization. However, traditional steam engines operate with a reciprocating motion mechanism, making their structure and manufacturing extremely complex and significantly reducing their thermal conversion efficiency, thus resulting in their obsolescence. Although conventional steam engines have been phased out, the characteristic of steam expanding 1700 times upon vaporization keeps steam power relevant in industries today. For instance, steam turbines are used in nuclear, thermal and geothermal power generation to convert thermal energy into electrical energy. However, steam turbines use steam in an open manner, failing to effectively utilize the pressure generated by steam's significant expansion, which results in low thermal efficiency. With the advent of the artificial intelligence (Al) era, there is an urgent need for a large power source. Thus, providing an advanced, simple-structured steam-powered generation device with significantly improved thermal efficiency has become the most critical issue. The present invention is, therefore, arisen to obviate or at least mitigate the above-mentioned disadvantages. SUMMARY OF THE INVENTION The main object of the present invention is to provide a rotary high pressure gas engine which, for example, uses the significant volume change of liquid water vaporization as the power source, offering excellent performance and providing the industry with a highly efficient power source. To achieve the above and other objects, a rotary high pressure gas engine is provided, wherein the rotary high pressure gas engine includes: a stator mechanism including two stators and two stator seals, each of the two stators including an annular guide groove and two stator grooves extending radially inside and outside the annular guide groove, the annular guide grooves of the two stators axially corresponding to each other to form a track, the two stator seals being embedded in and clamped between the annular guide grooves of the two stators; a rotor rotatably arranged between the two stators and including a plurality of cylinders and a plurality of perorations, a cylinder wall of each cylinder including a plurality of slots, the plurality of perorations being open on an outer circumferential surface of the rotor and respectively in communication with interiors of the plurality of cylinders; a mandrel including a plurality of axial ventilation grooves corresponding to the plurality of cylinders, disposed through the stator mechanism and the rotor, and movable with the rotor; a plurality of pistons, each of upper and lower ends of each of the plurality of pistons including a piston seal, the plurality of pistons being respectively received in the plurality of cylinders and respectively including piston shafts which project axially beyond the plurality of slots and are movable along the track, a space in which each of the plurality of pistons and the piston seal are movable in the cylinder, a space between the two stator seals of the stator mechanism and the plurality of slots being in communication with one another to form an engine lubricating system; and a plurality of gas covers radially movable respectively, resiliently disposed on the stator mechanism and covered on an outer circumferential surface of the rotor, a gas injection space being formed between each gas cover and the outer circumferential surface of the rotor, each of the plurality of gas covers including a gas supplying passage in communication with the gas injection space and configured for entering high-pressure gas; wherein when the gas injection space is in communication with the plurality of perorations, the high-pressure gas enters the gas injection space via the gas supplying passage of each of the plurality of gas covers and enters the plurality of cylinders via the plurality of perorations to drive the plurality of pistons to move radially inward so that the rotor rotates relative to the stator mechanism; wherein when the gas injection space is not in communication with the plurality of perorations, the piston shafts of the plurality of pistons move along the track to move radially outward to discharge high-pressure gas in the plur