| Danfoss Sanhua (Hangzhou) Micro Channel Heat Exchanger Co., Ltd. Patent applications |
| Patent application number | Title | Published |
|---|
| 20110247791 | HEAT EXCHANGER - A heat exchanger comprises first and second headers; a plurality of tubes each defining two ends connected to the first and second headers respectively. Each tube comprises a bent segment and straight segments connected to first and second ends of the bent segment respectively, the bent segment being twisted relative to the straight segments. A plurality of fins are interposed between adjacent straight segments. A length of the bent segment before bending satisfies a formula: 5tπ(180−θ)/180+2T | 10-13-2011 |
| 20110232884 | HEAT EXCHANGER - A heat exchanger comprises: a first header; a second header; a plurality of tubes spaced apart from each other and each connected between the first and second headers in fluid communication therewith; and a plurality of fins each disposed between adjacent tubes, in which the heat exchanger has a bent portion between the first and second headers such that the heat exchanger is divided into first and second heat exchanger portions which are located at two sides of the bent portion respectively, and a heat transfer coefficient of the second heat exchanger portion is greater than that of the first heat exchanger portion. The heat exchanger according to embodiments of the present disclosure is bent into a substantially inverted V-shape, and the capacities of the heat exchanger on two sides of the bending position are identical, thus improving the heat exchange performance. | 09-29-2011 |
| 20110061844 | HEAT EXCHANGER - A heat exchanger is disclosed, which comprises an inlet header defining a refrigerant chamber therein; an outlet header spaced apart from the inlet header; a plurality of tubes, two ends of each tube being connected to and communicating with the inlet and outlet headers respectively; a plurality of fins, each of which is interposed between adjacent tubes; and a distribution tube disposed outside the refrigerant chamber and formed with a distribution opening, through which the distribution tube communicates with the refrigerant chamber. According to the present invention, the distribution tube is easy to assemble, disassemble and maintain. The refrigerants in the inlet header and the distribution tube do not disadvantageously affect each other, thus enhancing distribution of refrigerant. | 03-17-2011 |
| 20110017438 | MULTI-CHANNEL HEAT EXCHANGER WITH IMPROVED UNIFORMITY OF REFRIGERANT FLUID DISTRIBUTION - A micro-channel heat exchanger includes an inlet manifold fluidly connected with an outlet manifold by a plurality of generally parallel tubes, further defining a plurality of generally parallel micro-channels therethrough. Refrigerant is introduced to the heat exchanger through a distributor tube disposed within the inlet manifold. The distributor tube includes a plurality of non-circular openings disposed along the length thereof which act as an outlet for refrigerant flow into the inlet manifold and eventually into and through the tubes and micro-channels. The openings are preferably slots arranged along the length of the distributor tube at an angle relative to the longitudinal direction of the distributor tube and oriented within the inlet manifold for a general direction of refrigerant flow at an angle relative to the general direction of refrigerant flow through the tubes. Alternative shapes for the openings are also considered. | 01-27-2011 |
