Abstract: A double pipe internal heat exchanger including a pipe, a first ferrule, a second ferrule, and a flexible hose. The pipe defines an inner channel. The first ferrule and a second ferrule are mounted to the pipe and spaced apart along the pipe. The flexible hose is mounted to the first ferrule and the second ferrule. The flexible hose defines an outer channel between the pipe and the flexible hose.

Abstract: A vibration damper for a conduit line. The damper includes a flexible body defining a bore and a slot adjacent to the bore. The body is flexible between a first configuration in which the slot has a first width that is insufficient to permit the conduit line to pass therethrough, and a second configuration in which the slot has a second width that is sufficient to permit the conduit line to pass therethrough, the second width is greater than the first width. The flexible body further includes a plurality of tuning splines. The tuning splines include a length and a width configured to reduce vibration of the conduit line when the damper is connected to the conduit line such that the conduit line extends through the bore.

Abstract: A double pipe internal heat exchanger including a pipe, a first ferrule, a second ferrule, and a flexible hose. The pipe defines an inner channel. The first ferrule and a second ferrule are mounted to the pipe and spaced apart along the pipe. The flexible hose is mounted to the first ferrule and the second ferrule. The flexible hose defines an outer channel between the pipe and the flexible hose.

Abstract: A vibration damper for a conduit line. The damper includes a flexible body defining a bore and a slot adjacent to the bore. The body is flexible between a first configuration in which the slot has a first width that is insufficient to permit the conduit line to pass therethrough, and a second configuration in which the slot has a second width that is sufficient to permit the conduit line to pass therethrough, the second width is greater than the first width. The flexible body further includes a plurality of tuning splines. The tuning splines include a length and a width configured to reduce vibration of the conduit line when the damper is connected to the conduit line such that the conduit line extends through the bore.

Abstract: The present invention is a system and method to significantly reduce noise associated with air-moving devices such as an axial flow fan using a fan shroud and barrel combination with built in silencers such as Helmholtz resonators. The invention can be applied to a variety of applications such as a thermal management system for a fuel cell powered vehicle. The resonator can be a hollow cavity in networks attached to an outer or inner barrel or shroud and tuned to reduce noise at predetermined noise frequency ranges within the airflow. The invention can also attach stator members on the inner surface of the outer barrel to further reduce noise. Additional sound absorbing material, such as steel wool, can be disposed within the resonator cavity.

Abstract: The present invention is a system and method to significantly reduce noise associated with air-moving devices such as an axial flow fan using a fan shroud and barrel combination with built in silencers such as Helmholtz resonators. The invention can be applied to a variety of applications such as a thermal management system for a fuel cell powered vehicle. The resonator can be a hollow cavity in networks attached to an outer or inner barrel or shroud and tuned to reduce noise at predetermined noise frequency ranges within the airflow. The invention can also attach stator members on the inner surface of the outer barrel to further reduce noise. Additional sound absorbing material, such as steel wool, can be disposed within the resonator cavity.