# US 7,744,309 B2 · Hydraulic power generating system

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- Number: US 7,744,309 B2
- Document ID: US7744309B2
- Status: Granted
- Kind: B2
- Application number: 11/790,312
- Filed: 2007-04-25
- Published: 2008-02-21
- Granted: 2010-06-29
- Earliest claimed: 2006-05-04
- Inventors: Koo Shik Lee; Dae Hoon Lee
- Web page: https://patentgrep.com/patent/US7744309B2

## CPC

- E02B 9/00: Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
- F03B 17/064: {and a rotor of the endless-chain type}
- Y02E 10/20: Hydro energy
- E02B: HYDRAULIC ENGINEERING (ship-lifting E02C; dredging E02F)
- F03B: MACHINES OR ENGINES FOR LIQUIDS (positive-displacement engines for liquid F03C; machines for liquids and gases F01; positive-displacement machines for liquids F04, rotary fluid gearing of the hydrokinetic type F16H41/00)
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A hydraulic power generating system is disclosed. The hydraulic power generating system includes a looped rail, a plurality of pulleys moving along the looped rail, a plurality of water receiving plates, each being installed to each of the pulleys, side plates which are hingedly coupled to left and right side portions of each of the water receiving plates by hinge shafts, and spread adjusting devices which make the side plates spread against a direction of water flow. Accordingly, since the spread direction of the side plates hingedly coupled to both side portions of the water receiving plate can be changed forward and backward according to the direction of water flow so as to receive a larger amount of water, efficiency in generating power using water energy increases.

## Claims

### Claim 1

A hydraulic power generating system comprising:
a looped rail;
a plurality of pulleys moving along said looped rail;
a plurality of water receiving plates, each being installed with a respective one of said plurality of pulleys;
side plates which are hingedly coupled to left and right side portions of each of said plurality of water receiving plates by hinge shafts; and
spread adjusting devices which make said side plates spread against a direction of water flow, each of said spread adjusting devices includes:
a lock releasing part which releases a locking state of a locking device mounted to each of said side plates; and
a side plate rotating part which rotates each of said side plates to spread against the direction of water flow;
said locking device includes a stopper elastically mounted to each of said side plates and insertion holes formed at each of said plurality of pulleys;
said lock releasing part includes a guide bar formed at said stopper and a guide rail mounted to a fixing frame; and
said side plate rotating part includes a push bar mounted to said fixing frame and elastically supported by a spring.