A light-weight, high-strength compressor component having at least one fluid delivery feature that is formed via additive manufacturing is provided. The component may have at least one interior region comprising a lattice structure that comprises a plurality of repeating cells. A solid surface is disposed over the lattice structure. The interior region comprising the lattice structure has at least one fluid delivery feature for permitting fluid flow through the body portion of the light-weight, high-strength compressor component. The fluid delivery feature may be a flow channel, a fluid delivery port, a porous fluid delivery feature, or the like that serves to transfer fluids through the component, such as refrigerant and/or lubricant oils. Methods of making such compressor components via additive manufacturing processes are also provided.

Provided is a linear compressor. The linear compressor includes a piston, a cylinder, and a bearing inflow passage. The bearing inflow passage includes a first bearing inflow passage extending inward from an outer circumferential surface of the cylinder in the radial direction and a second bearing inflow passage extending from the first bearing inflow passage to an inner circumferential surface of the cylinder. The second bearing inflow passage extends from the inner circumferential surface of the cylinder in a circumferential direction.

A cylinder coupling structure of a compact air compressor includes a block, a tubular-shaped cylinder assembled to the block, a valve cover which covers the valve assembly, at least one pressurized bolt which assembles the valve cover and the block, a piston which is reciprocated inside the cylinder, a stator which is assembled to the block, a rotator which is located to relatively rotate as to the stator, a crank axis which is assembled to the rotator to integrally rotate with the rotator to be axially supported in the block to be rotatable, and a connecting rod, each of both ends thereof is connected to the crank axis and the piston, respectively.

Provided is a linear compressor. The linear compressor includes a shell defining an internal space and a compressor body disposed in the internal space. Also, the shell includes a shell body having both ends that are opened and a suction shell cover and a discharge shell cover, which are respectively coupled to both the ends of the shell body to close the internal space. Here, the discharge shell cover is provided in shape that is capable of assisting heat dissipation of the frame.

Provided is a linear compressor. Provided is a linear compressor. The linear compressor includes a shell defining an internal space, a compressor body disposed in the internal space, and a passage guide disposed between the shell and the compressor body. The passage guide may include a first guide part extending along an inner surface of the shell in an axial direction and a second guide part extending from the first guide part to the compressor body in a radial direction.

A high hardness sleeve or surface treatment to a predetermined hardness is used in a packing bore for a fluid end of a pump assembly. The bore is either treated to provide the hardness or a sleeve is used which is fitted in an oversized bore for preventing washout failure. The sleeve is welded into the pump block and machined to the proper size bore. Thereafter the bore is protected from washout failure at this location. Alternatively, a surface of the sleeve is polished which further reduces the wear on the part. The sleeve can be a stainless steel material hardened by heat treating process or otherwise treated or carbon steel sleeves with the predetermined bore hardness which could be welded into a suitable bore in the pump. However, other processes for hardening the stainless steel can be used as long as desired predetermined surface hardness is maintainable.

A fluid end assembly comprising a plurality of fluid end sections positioned in a side-by-side relationship. Each section comprises a housing containing a reciprocating plunger. One and only one packing seal is installed within the housing and surrounds and engages an outer surface of the plunger. A retainer compresses and holds the packing seal within the housing. The retainer is secured to the housing using a clamp, such that no threads are formed in the housing of the fluid end section and no threads are formed in the retainer.

A four-cylinder compressor, including a hollow base placed horizontally, a motor body fixed in the base, a cam mechanism in transmission connection to output shafts at two ends of the motor body and two cylinder groups arranged at the base. The cylinder groups are in transmission connection with the cam mechanism, each including a first cylinder and a second cylinder. The first cylinder and the second cylinder are fixedly arranged opposite to each other on the base along the vertical direction. The two first cylinders are connected, and the two second cylinders are connected.

A fluid end assembly comprising a plurality of fluid end sections positioned in a side-by-side relationship. Each fluid end section comprises a housing having a bore formed therein for housing a reciprocating plunger. Fluid is prevented from leaking around the plunger by a packing seal assembly. The packing seal assembly comprises one and only one packing seal.

A fluid end assembly of a hydraulic fluid pump includes a housing having a first housing bore and a second housing bore offset axially from the first housing bore. A plate is fastened to the housing. The plate has a first plate bore axially aligned with the first housing bore and a second plate bore axially aligned with the second housing bore. A first removable valve cover closes the first housing bore and a second removable valve cover closes the second housing bore. A first retainer engages the first plate bore and abuts the first removable valve cover and a second retainer engages the second plate bore and abuts the second removable valve cover.