| 摘要 |
The invention relates to an improved device (1) for dispensing charges of a fluid and a system comprising such a device. The device (1) according to the invention comprises a housing (2) provided with a first inlet (3) arranged for allowing a first flow of a fluid to be proportioned to flow into the device; a second inlet (4) arranged for allowing a second flow of said fluid to flow into the device; a first fluid communication means (9) that is arranged for establishing fluid communication between the first inlet (3) and a first chamber (6); a second fluid communication means (10) that is arranged for establishing fluid communication between the second inlet (4) and the first chamber (6); a piston (11) that is provided in the first chamber (6) and is arranged for keeping the first and the second flows separated; a plunger (13) that is provided in a second chamber (14) and is arranged for establishing alternately a first charge out of the first flow and a second charge out of the second flow; an outlet (20) for said first and second charges; and a third (17), a fourth (18) and a fifth (19) fluid communication means that are arranged for enabling fluid communication between the first (6) and the second (14) chambers and the outlet (20), wherein the third (17), the fourth (18) and the fifth (19) fluid communication means, the piston (11) and the plunger (13) are arranged for alternately dispensing the first and the second charges at the outlet (20) of the device. In this way, the invention provides a device that has a simpler construction than prior art devices in terms of parts required for dispensing a charge of fluid at the outlet for lubricating a point, e.g. a bearing. Therefore, the device according to the present invention is more robust and more reliable than devices known from the prior art. |
