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US3876339A Expired / Lapsed US ⏱️ 0.0 years remaining

Reciprocating piston gas compressor

Assignee: Sundstrand Corp
•
Filing: 1973-08-06
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Granted: 1975-04-08
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Expires: 1993-08-06
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Abstract

Abstract A refrigeration gas compressor including an upright hermetically sealed housing having a generally elliptical transverse cross section, a cylinder block mounted in a lower portion of the housing, an electric motor mounted in an upper portion of the housing, a centrally disposed drive shaft rotatable by the motor and including eccentric portions for reciprocating pistons in the cylinder block along the major axis of the elliptical cross section of the housing, a manifold block mounted on the cylinder block adjacent the outer end of the cylinders therein, an inlet chamber in the manifold block communicating with the cylinders through intake valving, an outlet chamber in the manifold block communicating with the cylinders through outlet valving, an outlet muffler chamber in the manifold block having restricted communication with the outlet chamber, an intake muffler adjacent the top of the motor, and inlet tubing extending along the opposite side of the motor from the manifold block and communicating with the intake chamber.

Inventors

  • 👤 Edwin L Gannaway

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 20:00
CPC Classifications
F; F04; F04B; F04B35/00; F04B35/04; F04B39/00; F04B39/0027; F04B39/0055; F04B39/12; Y; Y10; Y10S; Y10S417/00; Y10S417/902

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 250 words
A gas compressor, comprising, a. an elongate sealed housing having a generally elliptical transverse cross section, b. an electric motor mounted in one end portion of the housing including a rotor and a surrounding stator centrally disposed with respect to the elliptical housing cross section, c. a cylinder block mounted in the other end portion of the housing including at least one radial cylinder disposed generally along the major axis of the elliptical cross section of the housing and having a reciprocal piston, d. drive shaft rotatable with the rotor and including and eccentric portion for reciprocating said piston, e. intake and discharge valving adjacent the outer end of said cylinder, f. a manifold block mounted on the cylinder block at one end of the major axis of the elliptical housing, adjacent the valving, and including an inlet chamber communicating with the intake valving and an outlet chamber communicating with the discharge valving, g. an intake muffler adjacent the end of the motor remote from the cylinder block, h. an inlet in the housing for supplying gas to the inlet muffler, i. intake tubing extending along the side of the motor opposite from the manifold block, at the other end of the major axis of the elliptical housing and leading from the inlet muffler to the cylinder block, j. inlet passage extending transversely in the cylinder block from the intake tubing to the inlet chamber, and k. a discharge conduit communicating the outlet chamber with the exterior of the housing.
Claim 2
Dependent Claim 250 words
A gas compressor, comprising, a. an elongate sealed housing having a generally elliptical transverse cross section, b. an electric motor mounted in one end portion of the housing including a rotor and a surrounding stator centrally disposed with respect to the elliptical housing cross section, c. a cylinder block mounted in the other end portion of the housing including at least one radial cylinder disposed generally along the major axis of the elliptical cross section of the housing and having a reciprocal piston, d. drive shaft rotatable with the rotor and including and eccentric portion for reciprocating said piston, e. intake and discharge valving adjacent the outer end of said cylinder, f. a manifold block mounted on the cylinder block at one end of the major axis of the elliptical housing, adjacent the valving, and including an inlet chamber communicating with the intake valving and an outlet chamber communicating with the discharge valving, g. an intake muffler adjacent the end of the motor remote from the cylinder block, h. an inlet in the housing for supplying gas to the inlet muffler, i. intake tubing extending along the side of the motor opposite from the manifold block, at the other end of the major axis of the elliptical housing and leading from the inlet muffler to the cylinder block, j. inlet passage extending transversely in the cylinder block from the intake tubing to the inlet chamber, and k. a discharge conduit communicating the outlet chamber with the exterior of the housing.
Claim 3
Dependent Claim 41 words
A gas compressor as defined in claim 1, wherein the manifold block extends axially of the housing alongside the motor and includes at least one outlet muffler chamber having restricted communication with said outlet chamber and communicating with said discharge conduit.
Claim 4
Dependent Claim 28 words
A gas compressor as defined in claim 1, wherein said intake tubing comprises a plurality of separate intake tubes disposed in generally parallel spaced relationship to each other.
Claim 5
Dependent Claim 21 words
A gas compressor as defined in claim 1, wherein the housing closely surrounds the cylinder block, manifold block and intake tubing.
Claim 6
Dependent Claim 45 words
A gas compressor as defined in claim 1, wherein the cylinder block has a plurality of radially aligned cylinders each having a reciprocal piston and intake and discharge valving adjacent the outer end thereof communicating with the inlet and outlet chambers in the manifold block.
Claim 7
Dependent Claim 344 words
A gas compressor, comprising, a. an upright hermetically sealed housing having a generally elliptical transverse cross section, b. a cylinder block mounted in a lower portion of the housing including vertically spaced transversely extending cylinders disposed along the major axis of the elliptical cross section of the housing and having reciprocal pistons, c. an electric motor mounted on the cylinder block in the upper portion of the housing including a centrally disposed rotor and a surrounding stator, d. a drive shaft rotatable with the rotor and including eccentric portions for reciprocating said pistons, e. bearing means on the cylinder block suporting the drive shaft, f. a valve plate on the cylinder block at the outer end of cylinders, cylinder, g. intake valving on the valve plate for admitting gas to the cylinders during the suction strokes of the pistons, h. discharge valving on the valve plate for discharging gas on the compression strokes of the pistons, i. a manifold block mounted on the valve plate at one end of the major axis of the elliptical housing and extending upwardly alongside the motor, j. an inlet chamber in the manifold block adjacent the cylinder block communicating with the intake valving, k. an outlet chamber in the manifold block adjacent the cylinder block communicating with the discharge valving, i. an outlet muffler chamber in the upper portion of the manifold block having restricted communication with the outlet chamber, m. a discharge conduit leading from the outlet muffler chamber to the exterior of the housing, n. an inlet opening in the housing for admitting gas to the housing, o. an annular intake muffler in the upper end of the housing communicating with the interior of the housing, p. a plurality of intake tubes extending downwardly along the side of the motor at the end of the major axis of the elliptical housing opposite said manifold block, the intake tubes leading from the inlet muffler to the cylinder block, and g. an inlet passage extending transversely through the cylinder block from the intake tubes to the inlet chamber.
Claim 8
Dependent Claim 344 words
A gas compressor, comprising, a. an upright hermetically sealed housing having a generally elliptical transverse cross section, b. a cylinder block mounted in a lower portion of the housing including vertically spaced transversely extending cylinders disposed along the major axis of the elliptical cross section of the housing and having reciprocal pistons, c. an electric motor mounted on the cylinder block in the upper portion of the housing including a centrally disposed rotor and a surrounding stator, d. a drive shaft rotatable with the rotor and including eccentric portions for reciprocating said pistons, e. bearing means on the cylinder block suporting the drive shaft, f. a valve plate on the cylinder block at the outer end of cylinders, cylinder, g. intake valving on the valve plate for admitting gas to the cylinders during the suction strokes of the pistons, h. discharge valving on the valve plate for discharging gas on the compression strokes of the pistons, i. a manifold block mounted on the valve plate at one end of the major axis of the elliptical housing and extending upwardly alongside the motor, j. an inlet chamber in the manifold block adjacent the cylinder block communicating with the intake valving, k. an outlet chamber in the manifold block adjacent the cylinder block communicating with the discharge valving, i. an outlet muffler chamber in the upper portion of the manifold block having restricted communication with the outlet chamber, m. a discharge conduit leading from the outlet muffler chamber to the exterior of the housing, n. an inlet opening in the housing for admitting gas to the housing, o. an annular intake muffler in the upper end of the housing communicating with the interior of the housing, p. a plurality of intake tubes extending downwardly along the side of the motor at the end of the major axis of the elliptical housing opposite said manifold block, the intake tubes leading from the inlet muffler to the cylinder block, and g. an inlet passage extending transversely through the cylinder block from the intake tubes to the inlet chamber.
Claim 9
Dependent Claim 221 words
A gas compressor, comprising, a. an elongate sealed housing having a generally elliptical transverse cross section, b. an electric motor mounted in one end portion of the housing including a rotor and a stator, c. a cylinder block aligned with the motor in the other end portion of the housing including at least one cylinder disposed generally along the major axis of the elliptical cross section of the housing and having a reciprocal piston, d. a drive shaft rotatable with the rotor and connected for reciprocating said piston, e. intake and discharge valving adjacent the outer end of said cylinder, f. a manifold block mounted on the cylinder block adjacent the valving at one end of the major axis of the elliptical housing, including an intake chamber communicating with the intake valving and an outlet chamber communicating with the discharge valving, g. an inlet in the housing for supplying gas to the housing, h. means, including intake tubing extending along the side of the motor at the other end of the major axis of the elliptical housing and opposite from the manifold block, leading to the cylinder block and a passage through the block, communicating between the housing and the inlet chamber, and i. a discharge conduit communicating the outlet chamber of the manifold block with the exterior of the housing.
Claim 10
Dependent Claim 221 words
A gas compressor, comprising, a. an elongate sealed housing having a generally elliptical transverse cross section, b. an electric motor mounted in one end portion of the housing including a rotor and a stator, c. a cylinder block aligned with the motor in the other end portion of the housing including at least one cylinder disposed generally along the major axis of the elliptical cross section of the housing and having a reciprocal piston, d. a drive shaft rotatable with the rotor and connected for reciprocating said piston, e. intake and discharge valving adjacent the outer end of said cylinder, f. a manifold block mounted on the cylinder block adjacent the valving at one end of the major axis of the elliptical housing, including an intake chamber communicating with the intake valving and an outlet chamber communicating with the discharge valving, g. an inlet in the housing for supplying gas to the housing, h. means, including intake tubing extending along the side of the motor at the other end of the major axis of the elliptical housing and opposite from the manifold block, leading to the cylinder block and a passage through the block, communicating between the housing and the inlet chamber, and i. a discharge conduit communicating the outlet chamber of the manifold block with the exterior of the housing.
Claim 11
Dependent Claim 198 words
A gas compressor, comprising, a. an elongate sealed housing, b. an electric motor mounted in one end portion of the housing including a centrally disposed rotor and a surrounding stator, c. a cylinder block mounted in the other end portion of the housing including at least one radial cylinder having a reciprocal piston, d. a drive shaft rotatable with the rotor and including an eccentric portion for reciprocating said piston, e. intake and discharge valving adjacent the outer end of said cylinder, f. a manifold block mounted on the cylinder block adjacent the valving including an intake chamber communicating with the intake valving and an outlet chamber communicating with the discharge valving, g. an intake muffler adjacent the end of the motor remote from the cylinder block, h. an inlet in the housing for supplying gas to the inlet muffler, i. intake tubing extending along the side of the motor opposite from the manifold block, leading from the inlet muffler to the cylinder block, j. an inlet passage extending transversely in the cylinder block and from the inlet tubing to the inlet chamber, and k. a discharge conduit communicating the outlet chamber with the exterior of the housing.
Claim 12
Dependent Claim 198 words
A gas compressor, comprising, a. an elongate sealed housing, b. an electric motor mounted in one end portion of the housing including a centrally disposed rotor and a surrounding stator, c. a cylinder block mounted in the other end portion of the housing including at least one radial cylinder having a reciprocal piston, d. a drive shaft rotatable with the rotor and including an eccentric portion for reciprocating said piston, e. intake and discharge valving adjacent the outer end of said cylinder, f. a manifold block mounted on the cylinder block adjacent the valving including an intake chamber communicating with the intake valving and an outlet chamber communicating with the discharge valving, g. an intake muffler adjacent the end of the motor remote from the cylinder block, h. an inlet in the housing for supplying gas to the inlet muffler, i. intake tubing extending along the side of the motor opposite from the manifold block, leading from the inlet muffler to the cylinder block, j. an inlet passage extending transversely in the cylinder block and from the inlet tubing to the inlet chamber, and k. a discharge conduit communicating the outlet chamber with the exterior of the housing.

References Cited (Backward Citations)

US3288357A Cited
US3387774A Cited
US3509907A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-04-07 1978-10-07 1979-04-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-04-07 1982-10-07 1983-04-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-04-07 1986-10-07 1987-04-08 $7700.00 Window Closed / Lapsed

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