# US 2021/0340909 A1 · Engine

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- Number: US 2021/0340909 A1
- Document ID: US20210340909A1
- Status: Published application
- Kind: A1
- Application number: 17/373,816
- Filed: 2021-07-13
- Published: 2021-11-04
- Earliest claimed: 2017-11-01
- Inventors: Xiaoyi ZHU
- Web page: https://patentgrep.com/patent/US20210340909A1

## CPC

- F02C 3/32: Inducing air flow by fluid jet, e.g. ejector action
- F01D 5/147: {Construction, i.e. structural features, e.g. of weight-saving hollow blades (F01D5/148, F01D5/16 and F01D5/20 take precedence; blade shape F01D5/141; blades with cooling or heating channels or cavities F01D5/18; heating, heat-insulating or cooling means on blades F01D5/18)}
- F01D 5/18: Hollow blades, {i.e. blades with cooling or heating channels or cavities (structure of hollow blades in general F01D5/147)}; Heating, heat-insulating or cooling means on blades
- F01D 5/186: {Film cooling (F01D5/187 takes precedence)}
- F01D 5/187: {Convection cooling}
- F02C 3/04: having a turbine driving a compressor (power transmission arrangements F02C7/36; control of working fluid flow F02C9/16)
- F05D 2220/32: in gas turbines
- F05D 2220/40: in turbochargers
- Y02T 50/60: Efficient propulsion technologies, e.g. for aircraft
- F02C: GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS (construction of turbines F01D; jet-propulsion plants F02K; construction of compressors or fans F04; generating combustion products of high pressure or high velocity F23R; using gas turbines in compression refrigeration plants F25B11/00)
- F01D: NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES (machines or engines for liquids F03; non-positive displacement pumps F04D)
- F05D: INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

A fluid supercharging device (3, 5), comprising: a rotating shaft (7); a vane disc (308) coaxially fixed to the rotating shaft (7); a plurality of fan blades (301) fixed around a perimeter of the vane disc (308); the back side of the fan blades 301 being provided with at least one fluid guiding inlet (305), an end of the back side distal from the vane disc (308) is provided with a fluid guiding outlet (306, 307), a fluid channel (304) communicating the fluid guiding inlet (305) with the fluid guiding outlet (306, 307) is provided along a lengthwise direction inside the fan blades; the fan blades (301) rotate to generate a centrifugal force such that a fluid flows into the fluid channel via the fluid guiding inlet on the back side, and flows out of the fluid guiding outlet along the lengthwise direction of the fan blades.

## Claims

### Claim 1

An engine, comprising: a housing (1), the housing being a hollow housing, a front portion of the housing (1) being a gas intake passage (2), a rear portion of the housing (1) being a jetting port (6), an inner portion of the housing (1) being combustion chamber (4), a compressor (3) and a turbine (5) being provided coaxially with a rotating shaft (7) and received in the housing (1);
Wherein a rear portion of the compressor (3) is provided, coaxially with the rotating shaft (7), with a hollow rotating cylinder (702) with a higher rotation velocity, a pressure differential propelling force from the front to the rear being generated between the compressor (3) and the hollow rotating cylinder (702) due to different flow velocities; wherein the hollow rotating cylinder (702) is received in the combustion chamber (4), and the hollow rotating cylinder (702) during rotation throws a fluid therein to the outside to define a hollow state; and a fluid in the combustion chamber (4) is sufficiently combusted in the course of traveling on a longer path around the hollow rotating cylinder (702).

### Claim 2 (depends on 1)

The engine according to claim 1, further comprising: spoilers; wherein the hollow rotating cylinder (702) is formed by at least two of the spoilers.

### Claim 3 (depends on 2)

The engine according to claim 2, wherein the spoilers are arc-shaped, straight line-shaped, concave-convex shaped, or spiral-shaped, and the hollow rotating cylinder (702) formed of the at least spoilers causes the fluid to travel on the longer path formed around the hollow rotating cylinder (702) that is rotating at a high speed.

### Claim 4 (depends on 3)

The engine according to claim 3, wherein the spoilers each have an arc outer surface and a planar inner surface, such that the hollow rotating cylinder (702) formed by the at least two spoilers generates a pressure difference from the interior to the exterior due to different flow velocities on the inner and outer surfaces; wherein the pressure difference from the interior to the exterior throws the fluid inside the hollow rotating cylinder to the outside, such that the fluid in the combustion chamber (4) is sufficiently combusted in the course of traveling on the path around the hollow rotating cylinder (702).

### Claim 5 (depends on 3)

The engine according to claim 3, further comprising: a hollow rotating conical cylinder (703) with a higher rotation velocity coaxially provided at a rear portion of the turbine (5), wherein a pressure differential propelling force from the front to the rear is generated between the turbine (5) and the hollow rotating conical cylinder (703) due to different flow velocities.

### Claim 6 (depends on 5)

The engine according to claim 5, wherein the hollow rotating conical cylinder (703) is formed by a porous cylinder.

### Claim 7 (depends on 1)

The engine according to claim 1, wherein the hollow rotating cylinder (702) is formed by a porous cylinder.