Abstract: The pump provides temperature-based flowrate-modulation of the main-flow of coolant through the engine and radiator, coupled with temperature-based open/close control of sub-flows of coolant through plural sub-circuits. Modulation is done by orientatable swirl-vanes. Open/close control is done by a movable sleeve rotating inside a stator-sleeve, which opens/closes apertures and windows in the sleeves.

Abstract: An automotive coolant pump has movable vanes, which are adjustable as to their orientation in accordance with the temperature of the coolant, whereby the rate of coolant flow through the pump impeller accords with coolant temperature. A thermal-actuator is operated by a thermal-sensor, and serves to rotate a vanes-drive-ring to cause the vanes to change orientation in unison. The cooling system includes a bypass-port, which is open during warmup and closed once coolant has acquired working temperatures; the same thermal-actuator serves also to operate the bypass-port-blocker. Additionally, the same thermal-actuator may serve also to operate a radiator-port-blocker, which serves to block flow through the radiator during engine warmup. The vanes may be arranged to close completely together, and to be sealed at closure. Sealing is effected e.g by elastomeric sealing elements arranged on the appropriate surfaces of the vanes.

Abstract: An automotive coolant pump has movable vanes, which are adjustable as to their orientation in accordance with the temperature of the coolant, whereby the rate of coolant flow through the pump impeller accords with coolant temperature. A thermal-actuator is operated by a thermal-sensor, and serves to rotate a vanes-drive-ring to cause the vanes to change orientation in unison. The cooling system includes a bypass-port, which is open during warmup and closed once coolant has acquired working temperatures; the same thermal-actuator serves also to operate the bypass-port-blocker. Additionally, the same thermal-actuator may serve also to operate a radiator-port-blocker, which serves to block flow through the radiator during engine warmup. The vanes may be arranged to close completely together, and to be sealed at closure. Sealing is effected e.g by elastomeric sealing elements arranged on the appropriate surfaces of the vanes.

Abstract: An impeller pump with thermostatically adjustable guide vanes is suitable for use as an automotive coolant pump. The pump is driven by a constant speed electric motor, and flow variation is controlled by varying the orientation of the vanes. Orientation of the vanes is effected by a wax-type thermostat, which senses coolant temperature: flow is increased when the coolant is hot, and decreased as the coolant cools. The variable guide vanes are mounted for pivoting about radial axes, and are located just upstream from the pump impeller.

Abstract: An impeller pump with thermostatically adjustable guide vanes is suitable for use as an automotive coolant pump. The pump is driven by a constant speed electric motor, and flow variation is controlled by varying the orientation of the vanes. Orientation of the vanes is effected by a wax-type thermostat, which senses coolant temperature: flow is increased when the coolant is hot, and decreased as the coolant cools. The variable guide vanes are mounted for pivoting about radial axes, and are located just upstream from the pump impeller.

Abstract: An impeller pump with thermostatically adjustable guide vanes is suitable for use as an automotive coolant pump. The pump is driven by a constant speed electric motor, and flow variation is controlled by varying the orientation of the vanes. Orientation of the vanes is effected by a wax-type thermostat, which senses coolant temperature: flow is increased when the coolant is hot, and decreased as the coolant cools. The variable guide vanes are mounted for pivoting about radial axes, and are located just upstream from the pump impeller.

Abstract: An impeller pump with thermostatically adjustable guide vanes is suitable for use as an automotive coolant pump. The pump is driven by a constant speed electric motor, and flow variation is controlled by varying the orientation of the vanes. Orientation of the vanes is effected by a wax-type thermostat, which senses coolant temperature: flow is increased when the coolant is hot, and decreased as the coolant cools. The variable guide vanes are mounted for pivoting about radial axes, and are located just upstream from the pump impeller.