5results about "Oscillating piston liquid engines" patented technology

The invention relates to a rotary piston pump (1) comprising in a spherical inner chamber (3) of a pump housing (2) with suction and pressure sides, a pair of rotary pistons (4, 5) in the form of universal-joint forks (6, 7) and a cross (8), between said forks (6, 7). The forks (6, 7) of the rotary pistons (4, 5) mesh with the cross (8) between them and form four pump chambers of variable volume when the rotary pistons (4, 5) and the cross (8) between are rotated. Each rotary piston (4, 5) is attached centrally to a hollow support shaft (13, 13', 14, 14') through a conical joint (10) and is fixed in place with a bolt joint (16) extending through a cavity (15) of the support shaft, where said support shaft is equipped with bearings (11, 12) and sealed.

A swing pump for hot melt adhesive, relating to the field of pump technology, includes a pump body, a swing component, a drive source, and a heating unit. The pump body has a swing chamber and a medium flow channel communicating with the swing chamber. The swing component is swingably disposed within the swing chamber. The power output end of the drive source is connected to the swing component for driving the swing component to swing back and forth within the swing chamber, thereby pushing the medium to flow in the medium flow channel. The heating unit is used to heat the medium flowing to the swing chamber. By using swing motion instead of linear motion to push the medium, the pump avoids the defects of linear motion sealing, such as the large stroke, large contact area, and strong adhesive adhesion, which easily lead to sealing failure. This effectively reduces the risk of adhesive leakage and achieves continuous adhesive dispensing.

The utility model discloses a small -size compressor, including front end cover, back end cover and cylinder body. The middle of cylinder body forms a air chamber, is equipped with rotor in the air chamber, and the outer wall of rotor is connected with the inner wall of cylinder body through an movable blade, and the cross section of blade both ends is circular and sets up, and keeps blade both ends gradually concave to the middle, and the width keeps gradually contractive narrow setting. This small -size compressor sets up the eccentric block and the rotating shaft of separable, realizes the eccentric swing of rotor, and realizes the position restriction of rotor with the articulated blade. Through setting up the blade structure of two ends bigger middle narrower, can realize the gas of blade both sides not to be connected, guarantees the sealing of air chamber, improves the compression efficiency of gas in compressor. Simultaneously cooperates the structure of blade, can improve the connecting strength between rotor and cylinder body, improves the stability of whole compressor compression gas process.

The patent discloses a micro spherical pump, a cylinder (5) has a hemispherical surface and a lower end of the hemispherical surface extends to form an inner cylindrical surface (501), a rotating sleeve hole (503) is connected to the inner spherical surface (502) of the cylinder (5), a piston pin seat (303) and a rotating disc pin seat (603) are matched to form a cylindrical hinge; an axis of the cylindrical hinge is arranged on an upper end surface of a rotating disc body and passes through the center of the upper end surface; a liquid inlet and outlet channel (604) is arranged on the rotating disc body; a distribution disc (7) is fixed to the lower end of the cylinder (5); a driving rotating disc shaft (601) is rotated, first and second working chambers (100 and 200) with alternating volumes are formed between the upper end surface of the rotating disc (6), the two side surfaces of the piston pin seat (303) and the inner spherical surface (502); the micro spherical pump has the advantages that the structure is simplified, the number of spherical matching pairs is reduced, and the processing and manufacturing are convenient; and the planar distribution structure is realized in the spherical pump.