| 摘要 |
The invention aims to improve the internal sealing of fuel-burning torches. It provides a fuel-burning torch of the type including a cylinder head in which is mounted a manifold (distributor) 20 pierced axially with a fuel-feed bore 36 and at the rear of which is screwed a valve-seat body 22 which includes a circular valve seat 46 against which a spherical valve ball 44 bears, this ball being stressed elastically in opposition to the force exerted on it by the pressurised fuel passing axially through the valve-seat body, characterised in that the valve-seat body 22 includes a cylindrical recess 52 into which is fitted an O-ring seal 40 against which the spherical ball 44 bears. <IMAGE>
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