Pumpenkörperanordnung, Drehzylinderpumpe und Wärmeaustauschvorrichtung

Details

Veröffentlichungs-Nr.

EP4756227

Anmeldetag

5. September 2024

Veröffentlichung

26. Juni 2025

Rechtsraum

EP

Abstract

A pump body assembly, a rotary cylinder pump, and a heat exchange apparatus. The pump body assembly comprises a rotary shaft, a cylinder liner and a piston assembly, wherein the rotary shaft and the cylinder liner are eccentrically arranged with a fixed eccentric distance; the piston assembly has a variable volume cavity, the piston assembly is rotatably arranged in the cylinder liner, and the rotary shaft is in driving connection with the piston assembly; the cylinder liner is provided with a liquid suction port and a liquid discharge port; and the cylinder liner is also provided with a buffer groove, the cylinder liner has a liquid suction slot in an inner wall surface thereof, the liquid suction slot is in communication with the liquid suction port via the buffer groove, the buffer groove extends in the circumferential direction of the cylinder liner by a first preset distance to form a buffer groove having an arc-shaped cross section, and the liquid suction slot extends in the circumferential direction of the inner wall surface of the cylinder liner by a second preset distance to form a cross section having two opposite straight segments and arc segments connecting ends of the two straight segments, such that an obtuse angle C or a round angle D is formed at the intersection between the liquid suction slot and the buffer groove, which solves the problem in the prior art of a sharp angle or edge existing at the intersection between an inlet buffer groove and a liquid suction slot of a cylinder liner.

Anmelder

Firma

Gree Electric Appliances, Inc. of Zhuhai

Land

🇨🇳 China