Pressure gas engine
AssigneeHollymatic Corporation
InventorsJames V. Theis, Jr., Bruno P. Meyer
Life of this patent
Estimating the term…
Abstract
A pressure gas engine such as compressed air turbine in which gas flow to a pressure responsive rotor is controlled by a movable valve that is operated by a bellows with means connecting each side of the bellows to the gas in the turbine for substantially equal gas pressure on both the inside and the outside of the bellows. There is also provided a speed control member that closes the gas inlet but that can be opened to any desired degree to achieve a desired speed. A bleed line leads from one side of the bellows so as to regulate the pressure on that side and a speed responsive throttle valve is provided to meter the amount of flow through the bleed line thereby maintaining the desired speed dependent upon the setting of the main supply valve.
Claims14
A pressure gas engine, comprising:
- a rotor having energy conversion means thereon for converting dynamic gas pressure to power;
- gas supply means for supplying pressurized gas to said engine;
- gas passage means from said supply means to said energy conversion means;
- control means for said pressurized gas comprising a valve seat in said gas passage and a force movable valve movable toward and away from said seat to control and meter the gas flow through said passage, said force movable valve comprising an expansible and retractable bellows having a hollow interior and a chamber surrounding the bellows in which the bellows is located;
- first gas flow means for diverting a portion of said pressurized gas to the interior of said bellows;
- second gas flow means for diverting a portion of said pressurized gas to the chamber surrounding said bellows;
- a pressurized gas vent passage means leading from said bellows interior and including a vent valve seat;
- a movable vent valve member movable into and away from engagement with said vent valve seat for metering gas flow through said vent passage;
- and means for moving said vent valve member toward said vent valve seat on increasing speeds of said rotor and away from said vent valve seat on decreasing speeds thereby controlling the rate of venting of said gas and thus the position of said force movable valve relative to its seat.
Dependencies are inferred from the claim text.