Abstract: A support assembly type baffle is proposed. The baffle may include a baffle body provided in an inner space of a vehicle tank to reduce flow noise, and having a plurality of through holes spaced apart from each other and a fastening portion formed on the inner circumferential surface of the through holes, and a support having a columnar shape, being fitted into the through holes to penetrate the through holes, and having an engagement portion coupled with the fastening portion, formed on the outer circumferential surface thereof, so that the support is fastened to the baffle body in a state of penetrating the baffle body, each of both ends of the support being fixed to two opposite sides of the inner sides of the tank to maintain the shape of the inner space of the tank.

Abstract: A baffle assembly of this application has an assembling connector for maintaining a coupled state by means of a vertical binding force Fverticality for locking a baffle plate, which has fluid-passing through-holes, to the side surface of a baffle body, which has fluid-passing through-holes, and lateral tightening force Fhorizontality for pressing the same, such that the baffle body and the baffle plate can be assembled in a fitted manner and, particularly, a double locking state is formed by the vertical binding force Fverticality and the lateral tightening force Fhorizontality, thereby preventing a change of the coupled state.

Abstract: A structure for a high-pressure vessel is provided to inhibit a gap between a plastic liner and a plastic sealing member due to the plastic sealing member being combined with the plastic liner by thermal bonding, thereby preventing the leakage of high-pressure gas to the gap between the plastic liner and the plastic sealing member. In addition, as the plastic liner and the plastic sealing member made of the same materials are combined with each other by the thermal bonding, use of the conventional lower fastening member is unnecessary, and further, use of a rubber sealing member for maintaining airtightness is unnecessary. Thus productivity via reduction in the number of components, a weight, a cost, and man-hours is improved.

Abstract: A baffle assembly of this application has an assembling connector for maintaining a coupled state by means of a vertical binding force Fverticality for locking a baffle plate, which has fluid-passing through-holes, to the side surface of a baffle body, which has fluid-passing through-holes, and lateral tightening force Fhorizontality for pressing the same, such that the baffle body and the baffle plate can be assembled in a fitted manner and, particularly, a double locking state is formed by the vertical binding force Fverticality and the lateral tightening force Fhorizontality, thereby preventing a change of the coupled state.

Abstract: A noiseproof vent valve for a fuel tank is provided. A damping member installed in the vent valve has at least two elastic pieces, preferably the four elastic pieces. The movement of the float is absorbed by elastic deformation of the elastic pieces, and thus the float is prevented from coming into contact with a lower end forming the bottom of a valve body. However excessively the float fluctuates, no “clicking” contact noise occurs at the vent valve. As a result, the merchantability of a hybrid vehicle sensitive to low noise can be greatly increased.