A duct structure provided inside a battery pack mounted on a vehicle and connecting an intake port of the battery pack to a fan that blows cooling air to a battery, the duct structure includes: a duct member made of nonwoven fabric, wherein the duct member includes a flow path disposed above the fan and extending in a horizontal direction, and among wall portions defining the flow path extending in the horizontal direction, a first wall portion extending in a vertical direction has a thickness smaller than a thickness of a second wall portion extending in the horizontal direction.

A duct structure provided inside a battery pack mounted on a vehicle and connecting an intake port of the battery pack to a fan that blows cooling air to a battery, the duct structure includes: a duct member made of nonwoven fabric, wherein the duct member includes a flow path disposed above the fan and extending in a horizontal direction, and among wall portions defining the flow path extending in the horizontal direction, a first wall portion extending in a vertical direction has a thickness smaller than a thickness of a second wall portion extending in the horizontal direction.

A duct structure includes: a duct member, wherein the duct member includes: an introduction portion, an opening communicating with a fan, a curved flow path having the opening and extending in a curved shape, a rectifying portion rectifying the cooling air flowing through the curved flow path, and a guide portion provided in the opening and guiding the cooling air flowing through the curved flow path to the opening, a sound absorbing material is provided in the curved flow path, the guide portion includes a guide wall, and an inlet is disposed at a position that is not visible in a plane perpendicular to a rotation axis direction of the fan when viewed in a direction perpendicular to a virtual line connecting one side end portion and the other side end portion of the guide wall from the opening in a straight line.

A duct structure includes: a duct member, wherein the duct member includes: an introduction portion, an opening communicating with a fan, a curved flow path having the opening and extending in a curved shape, a rectifying portion rectifying the cooling air flowing through the curved flow path, and a guide portion provided in the opening and guiding the cooling air flowing through the curved flow path to the opening, a sound absorbing material is provided in the curved flow path, the guide portion includes a guide wall, and an inlet is disposed at a position that is not visible in a plane perpendicular to a rotation axis direction of the fan when viewed in a direction perpendicular to a virtual line connecting one side end portion and the other side end portion of the guide wall from the opening in a straight line.

Disclosed is a muffler for a water-cooled chiller or air-cooled of a vapor-compression or absorption refrigeration system, the muffler having: an upstream case having a fluid inlet; a downstream case connected to the upstream case at a downstream end of the upstream case, the downstream case having a fluid outlet; the upstream case having a plurality of axially adjacent outer muffler rings and a plurality of axially adjacent inner muffler rings, the outer muffler rings being axially coextensive and a radially exterior to the inner muffler rings and defining a fluid inlet passage therebetween, wherein the outer muffler rings and inner muffler rings are a metal mesh material.

Disclosed is a muffler for a water-cooled chiller or air-cooled of a vapor-compression or absorption refrigeration system, the muffler having: an upstream case having a fluid inlet; a downstream case connected to the upstream case at a downstream end of the upstream case, the downstream case having a fluid outlet; the upstream case having a plurality of axially adjacent outer muffler rings and a plurality of axially adjacent inner muffler rings, the outer muffler rings being axially coextensive and a radially exterior to the inner muffler rings and defining a fluid inlet passage therebetween, wherein the outer muffler rings and inner muffler rings are a metal mesh material.

A duct of the present invention includes a pair of groove-shaped members which are formed of sound absorbing sheets and a pair of flange portions which are formed of parts of the pair of groove-shaped members that are extended outward from groove opening edges and which are joined in an overlaid state on each other when the pair of groove-shaped members are arranged such that groove openings are opposed to each other. The pair of flange portions includes a seal portion which is formed by crimping the sound absorbing sheets in parts of the flange portions along the groove opening edges and an outer thick portion which is extended outward from the seal portion and which is formed of the sound absorbing sheet thicker than the sound absorbing sheet of the seal portion.

A duct of the present invention includes a pair of groove-shaped members which are formed of sound absorbing sheets and a pair of flange portions which are formed of parts of the pair of groove-shaped members that are extended outward from groove opening edges and which are joined in an overlaid state on each other when the pair of groove-shaped members are arranged such that groove openings are opposed to each other. The pair of flange portions includes a seal portion which is formed by crimping the sound absorbing sheets in parts of the flange portions along the groove opening edges and an outer thick portion which is extended outward from the seal portion and which is formed of the sound absorbing sheet thicker than the sound absorbing sheet of the seal portion.

The present application relates to a hybrid component and a method for producing the same. The proposed hybrid component comprises a basic element (2) having at least one portion which is formed as a laminate (3) from a plastics foam and a fiber composite plastic.

The present application relates to a hybrid component and a method for producing the same. The proposed hybrid component comprises a basic element (2) having at least one portion which is formed as a laminate (3) from a plastics foam and a fiber composite plastic.