Exhaust gas filter for reflow oven
AssigneeIllinois Tool Works Inc.
InventorYuwei Wang
Life of this patent
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Abstract
An example exhaust gas filter for a reflow oven comprises a filter chamber, a filtering piece and a vapor chamber. An upper transverse passage is formed between the vapor chamber top plate and the filter element, a gap is formed between one side of the top plate and the sidewall of a filter chamber, and the upper transverse passage is in fluid communication with the gap; one filter chamber sidewall forming a gap with the top plate is disposed with a filter chamber air inlet for introducing air, and one of the other three sidewalls of the filter chamber is disposed with an exhaust gas inlet for introducing exhaust gas from the exhaust gas filter chamber, so that the air and the exhaust gas can enter the upper transverse passage through the gap.
Claims15
An exhaust gas filter for a reflow oven, comprising:
- a filter chamber, the filter chamber having a filter chamber top, the filter chamber top being provided with an air outlet, and the filter chamber having four sidewalls;
- a filter element, the filter element being disposed inside the filter chamber and located below the air outlet;
- a vapor chamber, the vapor chamber being disposed under the filter element and the vapor chamber comprising a top plate;
- wherein, an upper transverse passage is formed between the top plate of the vapor chamber and the filter element, a gap is formed between one side of the top plate and one of the four sidewalls of the filter chamber, and the upper transverse passage is in fluid communication with the gap;
- wherein, a filter chamber air inlet is provided on the one sidewall of the filter chamber which forms the gap with the top plate, the filter chamber air inlet is used for introducing air;
- and in the remaining three out of the four sidewalls of the filter chamber, one sidewall is provided with a filter chamber exhaust gas inlet, and the filter chamber exhaust gas inlet is used for introducing exhaust gas;
- and
- wherein, the filter chamber air inlet and the exhaust gas inlet of the filter chamber are disposed in such a way that both air and the exhaust gas can enter the upper transverse passage through the gap.
Dependencies are inferred from the claim text.