Heat exchanger for hydraulic post-tensioning jack system
OwnerFelix Sorkininventor
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to an improved hydraulic pump for maintaining acceptable operating temperatures for hydraulic fluid used in a post-tensioning jack system for post-tensioning concrete. Embodiments include a pump unit with a fan and a heat exchanger. The heat exchanger may be located directly below the motor for the pump and a fan unit; other embodiments include a heat exchanger may be located on a side of the pump with a co-located fan unit. The pump unit may be portable and battery powered. The pump unit may include a digital display for input and output of operating parameters.
Claims12
A hydraulic pump unit, comprising:
- a hydraulic pump;
- a fan;
- an electric motor mechanically coupled via a shaft to the fan and to the hydraulic pump to provide power to the fan and the hydraulic pump with the electric motor being located vertically above the fan which is in turn located vertically above the hydraulic pump;
- and
- a cooling coil configured to allow for hydraulic fluid to flow through and heat exchange with surrounding atmosphere, the cooling coil being physically located between the fan and the hydraulic pump and being coiled in a horizontal plane with the shaft running through a center of the cooling coil.
A hydraulic pump unit, comprising:
- a hydraulic pump;
- a fan;
- an electric motor mechanically coupled via a shaft to the fan and to the hydraulic pump to provide power to the fan and the hydraulic pump, wherein the electric motor is located in a vertical plane over the fan and hydraulic pump with the electric motor being located vertically above the fan which is in turn located vertically above the hydraulic pump;
- and
- a cooling coil located directly beneath the fan and over the hydraulic pump and that is fluidly coupled to the hydraulic pump to allow for hydraulic fluid to flow through and heat exchange with surrounding air and the cooling coil being coiled in a horizontal plane surround the shaft with the shaft running through a center of the cooling coil.
Dependencies are inferred from the claim text.