| 摘要 |
<p>PROBLEM TO BE SOLVED: To avoid abrasion of a valve seat and a needle. SOLUTION: A torch valve for compression fuel is provided with a valve main body 20 with a hole 22, and a needle 50 screwed around the hole. The hole is provided with an inlet part 24 capable of connecting on a compression fuel source, the needle is supported by a second part of the hole, and the outlet passage 26 is communicated with the hole thorugh a connecting part 47. A passage extends horizontally, and is opened at an opening part 28. The opening part is provided with installing means of the torch and an ignition device assembly, and the needle is provided with a stem. A roof part 70 extends from the stem which is apart from a tip end part, and a first groove 54 is formed between the roof part 70 and the stem. A second groove 56 is formed on the stem apart from the first groove 54, and each of grooves 54, 56 support an elastic ring. A passage is tightly closed from a circumference by the second groove 56 and the ring. When the needle is positioned so as to position the first groove 54 and the ring on a position formed between the passage and the inlet part, the outlet part is closed from the inlet part. A spring and a pin device are connected to the needle at the inlet side of the main body, and gas pressure in the passage is regulated.</p> |
