Abstract: A battery heating device for delivery thermal energy to at least one vehicle battery includes a battery support plate for supporting the battery, a heatable fluid tube supported underneath the battery support plate for transferring thermal energy from heatable fluid, such as engine coolant, to the battery, and one or more electric heating pads secured to the battery support plate to transfer thermal energy to the battery. The heatable fluid tube preferably is secured to the battery support plate by a continuously distributed, thermally conductive adhesive material, to enhance heat transfer to the battery via the battery support plate. The heatable fluid tube is constructed and disposed to be a non-weight-bearing member, to reduce the likelihood of engine coolant leakage.

Abstract: A power fluid heating system according to this invention includes a heating apparatus positioned within a power fluid container having a first power fluid pickup conduit, a second power fluid pickup conduit positioned within the first power fluid pickup conduit, and a heat exchanger for directly heating both the power fluid in the container and the power fluid in the first and second pickup conduits. The power fluid heating system also includes a water separating device. The water separating device includes a power fluid reservoir and a heat exchanger inside the reservoir. The power fluid heating system also includes a heat exchanger having heat exchange fluid medium passages for the flow of a heatable fluid through the passages so that the heated power fluid exiting the water separating device provides heat transfer to the heatable fluid.

Abstract: An apparatus connectable to fluid containing operating systems which creates a vacuum effect upon the fluid in the operating system during repairs and maintenance. The apparatus also permits pressure testing of the repairs and maintenance to the operating system without removal of the apparatus therefrom.