Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Downhole motor










Image Number 2 for United States Patent #6230823.

A downhole hydraulic motor consisting of an outer rim having six or eight lobes on the toothed inner surface, a rotor having four or six lobes respectively on the toothed outer surface as well as a number of planetary gears being constantly engaged with both the outer rim and the rotor and dividing the space between the rim and the rotor into a number of working chambers changing their volume with the rotation of the motor. The working fluid is supplied to the working chambers through channels both in the rotor and the side covers, one of which can slide inside the outer rim to allow adjustment of the gap between the ends of the planetary gears and the side covers.








 
 
  Recently Added Patents
Information terminal, setting information distribution server, right information distribution server, network connection setting program and method
Substituted indolo 4,3 FG quinolines useful for treating migraine
Methods and devices for multiple-mode radio frequency synthesizers
System for determining movement properties of a guided vehicle
Display apparatus
Sensor packages and method of packaging dies of differing sizes
Apparatus and method for foreground detection
  Randomly Featured Patents
Conversion of data in an sRGB format to a compact floating point format
Non-aqueous secondary lithium battery
Method and apparatus for manufacturing elastic leg disposable diapers
Dental hygiene device
Method and system to compensate for process direction misalignment of printheads in a continuous web inkjet printer
System and method for handling storage consistency conflict
Initialize control system in a cash processing system
Reciprocating machine
Central office powered credit only telephone paystation
Side-valve type internal combustion engine