Power plants – Pressure fluid source and motor – Utilizing lubricant – starter motor – cooling fluid – or fluid...
Reexamination Certificate
1997-12-05
2001-05-08
Nguyen, Hoang (Department: 3748)
Power plants
Pressure fluid source and motor
Utilizing lubricant, starter motor, cooling fluid, or fluid...
C060S407000
Reexamination Certificate
active
06226986
ABSTRACT:
This invention relates to engines and rotary machines.
Examples of rotary machines are in GB 2010401 and 2039328 and 2194322 and U.S. Pat. No. 4362014 and U.S. Pat. No. 4831827 and EP-A-248613.
According to one aspect of the invention, an internal combustion engine has a rotary positive-displacement fluid device connected to be driven by the pressure difference between ambient air and the inlet manifold of the engine, the device being operatively connected to an energy-using device.
The energy-using device may be a crank-shaft of the engine or an alternator for charging a battery.
The rotary device may be arranged to deliver compressed air to a fuel-injection device for the engine.
There may be a source of compressed air independent of the engine for driving the rotary device.
From another aspect the invention provides an internal combustion engine having a rotary positive-displacement fluid device operatively connected to the engine crankshaft and arranged to be driven by compressed air from a source independent of the engine.
According to another aspect of the invention a rotary positive-displacement fluid machine has a rotor eccentrically mounted in a casing, the rotor having a plurality of vanes, each vane being connected to an oscillating arm via a crank and having a pivot axle, the crank having elements pivotally embracing a radial outer end of the oscillating arm.
The oscillating arms may be radial.
From another aspect of the invention, a rotary positive-displacement fluid machine has a rotor eccentrically mounted in a casing, the rotor having a plurality of vanes, each vane being connected to an oscillating arm via a crank and having a pivot axle, the oscillating arms being radial to the rotor axis.
The oscillating arms may be in adjacent pairs with confronting faces and have groove means for access of lubricating oil.
The cranks may have the same shape.
The pivot axles may have the same length or differing lengths.
The oscillating arms may be rotatable on a sleeve rotatable on a support pillar. The rotor may have axially outer parts and an axially intermediate part, the intermediate part being split to permit circumferential expansion and the outer parts being connected to the intermediate part by means which resist radial movement.
From another aspect a rotary positive-displacement fluid machine has a rotor eccentrically mounted in a casing with vanes defining compartments with the casing, in which the rotor has axially outer parts and an axially intermediate part, the intermediate part being split to permit circumferential expansion and the outer parts being connected to the intermediate part by means which resist radial movement.
The means which resist radial movement may comprise interengaging formations on the outer parts and the intermediate part.
The interengaging formations may comprise grooves on the outer parts and annular rings on the intermediate part or annular rings on the outer parts and grooves on the intermediate part.
The intermediate part may be in a machine as above.
The machine may be adapted to deliver refrigerant to a heat exchanger.
REFERENCES:
patent: 3299629 (1967-01-01), Bouchard
patent: 4439983 (1984-04-01), Gertz
patent: 0248613 (1987-12-01), None
patent: 2010401 (1979-06-01), None
patent: 2086987 (1982-05-01), None
patent: 6-81668 (1994-03-01), None
patent: 92/09800 (1992-06-01), None
Driver Ann Margaret
Driver Ronald William
Driver Technology Ltd.
Nguyen Hoang
LandOfFree
Rotary positive displacement fluid machine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rotary positive displacement fluid machine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotary positive displacement fluid machine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2547655