Burner
AssigneeHino Motors, Ltd.
InventorsIchiro Tsumagari, Ryo Shibuya, Atsushi Koide
Life of this patent
Estimating the term…
Abstract
A burner includes a first tube portion formed with an ejection port; a second tube portion that extends in the first tube portion toward the ejection port and to which gaseous mixture flows in from a side opposite to the ejection port; a third tube portion arranged in the first tube portion and including an open end positioned on the ejection port side; a closing portion that closes the open end; a coupling wall portion that closes a gap between the first tube portion and the second tube portion; a partition wall that is coupled to the first tube portion and the third tube portion, the partition wall being formed with a communication path; and an igniting portion that is arranged on the ejection port side with respect to the partition wall.
Claims12
A burner comprising:
- a first tube portion having a tube end including an ejection port that ejects a combustion gas in which gaseous mixture is combusted;
- a second tube portion extending in the first tube portion toward the ejection port, the gaseous mixture flowing into the second tube portion from a side opposite to the ejection port;
- a third tube portion arranged in the first tube portion, the second tube portion is internally inserted into the third tube portion, the third tube portion including a closed end closed by a closing portion that is positioned on the ejection port side;
- a first wall that is coupled to an inner side surface of the first tube portion and an outer side surface of the second tube portion to close a gap between the first tube portion and the second tube portion;
- a second wall coupled to the inner side surface of the first tube portion and an outer side surface of the third tube portion, the second wall having a communication path that communicates a side opposite to the ejection port with respect to the second wall with the ejection port side;
- an air supplying passage for supplying air;
- and
- an igniting portion that is arranged on the ejection port side with respect to the second wall and that ignites the gaseous mixture, wherein:
- the first tube portion includes an extended part extending toward the side opposite to the ejection port from a coupling portion of the first tube portion with the first wall;
- the extended part defines a space that is configured to receive fuel and air;
- and the extended part has first introduction ports that introduce air supplied through the air supplying passage into the extended part and swirling flow generating portions that generate a swirling flow of the air supplied through the air supplying passage in the extended part;
- wherein the first tube portion includes:
- second introduction ports that are positioned in a region of the ejection port side with respect to the igniting portion, wherein the second introduction ports introduce air to a gap between the first tube portion and the third tube portion.
Dependencies are inferred from the claim text.