F04B39/125

AIR COMPRESSOR WITH RAMPED HEAD DECK
20230048353 · 2023-02-16 ·

An improved air compressor is provided. The air compressor includes a cylinder block having a head deck that defines a piston bore for reciprocal movement of a piston therein. The head deck further includes first and second ramped surfaces that slope downward toward the peripheral edge of the piston bore. A valve plate is in direct contact with the upper surface of the head deck, the valve plate having a leaf valve. During an intake stroke of the piston, the leaf valve deflects downward into direct engagement with the first and second ramped surfaces. Because the air compressor lacks a lower gasket between the valve plate and the head deck, the cost and assembly time associated with the lower gasket are eliminated.

ECONOMIZER INJECTION IN A RECIPROCATING COMPRESSOR
20230041180 · 2023-02-09 ·

A compressor includes a cylinder block having a first bore and a cylinder head overlapping the cylinder block. The cylinder head has a second bore aligned with the first bore. The second bore is separated into a plurality of distinct regions including a suction region and an economizer region. A plurality of valves includes a suction valve selectively operable to fluidly couple the suction region and the first bore, and an economizer valve selectively operable to fluidly couple the economizer region and the first bore.

RECIPROCATING COMPRESSOR CYLINDER COVER

The present invention refers to a reciprocating compressor cylinder cover and, more particularly, to a cylinder cover provided with at least one discharge chamber comprising a compact construction concept, able to guarantee an application in reciprocating compressors of different capacities, with hermetic housings provided with different internal volumes.

Linear compressor
11555490 · 2023-01-17 · ·

The present invention relates to a linear compressor. A discharge unit of the linear compressor according to an aspect of the present invention includes a discharge cover coupled with the frame. In addition, the discharge cover includes a cover flange portion and a chamber portion. At this time, the cover flange portion includes a flange main body having a main body penetration portion and a main body extension portion provided outward in a radial direction so as to face the main body penetration portion, and a flange coupling portion having a flange coupling hole into which a fastening member for coupling with the frame is inserted.

RECIPROCAL COMPRESSOR AND REFRIGERATOR INCLUDING THE SAME
20230220841 · 2023-07-13 · ·

A reciprocal compressor includes a cylinder, a piston inside the cylinder and including an upper wall constituting a compression chamber and a lateral wall formed to extend from the upper wall, an elastic cover provided so that an outer surface of the upper wall of the piston is between the piston and the elastic cover, and a cam mechanism configured to deform the elastic cover into a first state in which the elastic cover is apart from the upper wall of the piston to reduce a volume of the compression chamber and to restore the elastic cover into a second state in which the elastic cover is closer to the upper wall of the piston than in the first state while the piston is moved to a top dead center and a bottom dead center.

Discharge valve arrangement for a refrigerant compressor
20220397109 · 2022-12-15 ·

The discharge valve arrangement (17) includes a valve plate (18) including a discharge passage (22) and a valve seat (23) surrounding the discharge passage (22); a valve housing (24) being secured to the valve plate (18) and including a bottom portion (25) facing away from the valve plate (18), a sidewall (26) extending from the bottom portion (25) and towards the valve plate (18), and a discharge opening (28) formed in the sidewall (26); a valve member (31) displaceable between a closed position in which the valve member (31) closes the discharge passage (22) and an open position in which the valve member (31) opens the discharge passage (22). The valve housing (24) includes a gas damping chamber defined by the bottom portion (25) and the sidewall (26) and being configured to accommodate the valve member (31) in the open position; and an exhaust opening (37) formed in the bottom portion (25) and emerging in the gas damping chamber.

High Volume, Low Pressure Oilless Pump
20220389920 · 2022-12-08 ·

A motor and pumping system which provides for high volume, low pressure, low cost, and ease of assembly as a breathing air supply such as for a submerged diver. The integration of the necessary elements gives rise to a unique ability to eliminate costly and complex motor bearings and simplify the motor design by reducing number of magnetic poles and electrical control elements which would traditionally be required to control the multiple poles of an electromechanical machine.

ELECTRIC COMPRESSOR

This electric compressor (10) has: an accommodating case (15) that accommodates an inverter device (19) and includes an accommodating section body (31), a substrate support section (32) protruding from a bottom surface (31a) of the accommodating section body (31), and a cover member (34) that closes an opening in the accommodating section body (31); and an antivibration member (17) that is positioned between one surface (51a) of a head part (51) of a bolt (16) fastened to the substrate support section (32) and an inner surface (34a) of the cover member (34), and that is bonded to the one surface (51a) of the head part (51) and the inner surface (34a) of the cover member (34).

ALTERNATIVE COMPRESSOR HEAD ARRANGEMENT

The present invention reveals an alternative compressor head arrangement capable of eliminating the occurrence of friction wear in the bending areas of the operation valves. For this, an interface blade arranged between the valve blade and the stop blade is used, so that the interface between the static end of the operation valve of the valve blade and the valve stop of the stop blade is fully carried out by the interface blade.

PORTABLE PUMP
20220364554 · 2022-11-17 ·

A reciprocating air compressor arrangement includes a crank that drives a connecting rod and a piston within a cylinder. The connecting rod has a first end and a second end. The first end of the connecting rod is connected to the crank and the second end of the connecting rod is connected to the piston, with the crank provided to actuate the piston in a reciprocating motion within and relative to the cylinder so as to compress air within the cylinder. The reciprocating air compressor arrangement has a one-way flapper inlet valve allowing air to enter the cylinder, and a one-way outlet valve allowing compressed air to exit the cylinder. The inlet valve is biased to a partially open position.