A heater control apparatus for a diesel fuel filter according to an exemplary embodiment of the present disclosure includes a fuel temperature sensor for sensing a temperature of diesel fuel, a main relay including a first internal coil and a first switch, a pre-filter heater relay including a second internal coil and a second switch; a first node, a second node, a third node, and an engine control unit (ECU).

A center tube for use with a filter element comprises a unitary body having a standpipe that defines a length along the longitudinal axis and a central flow passage and a plurality of radially extending flow fins attached to the standpipe, the flow fins spaced axially from one another along the standpipe to define radial flow channels, wherein each of the fins further defines a first aperture between the fin and the standpipe, the apertures together defining a first outer axial flow passage and the standpipe defines a a rectangular shape.

A separating device for separating an undesired fluid from a multi-component liquid has a region flowed through by the multi-component liquid and at least one membrane disposed in the region to separate a first fluid region from a second fluid region. The membrane has a first permeability to the undesired fluid and a second permeability to the multi-component liquid. The first permeability is different from the second permeability. The membrane is equally permeable to all components of the multi-component liquid. The membrane is permeable to the multi-component liquid and impermeable to the undesired fluid, or the membrane is impermeable to the multi-component liquid and is permeable to the undesired fluid, wherein the multi-component liquid is a liquid multi-component operating medium. A filter with such a separating device and a filter element, in particular for diesel fuel, as well as a liquid system with such a separating device are described.

The present invention relates to a demount-free electrical cleanable filter, which includes a housing and a main filter cylinder in the housing. the housing is provided with a cleaning hoop and a reciprocating driving device. The cleaning hoop is sleeved on cylinder filtering material of the main filter cylinder. The reciprocating driving device drives the cleaning hoop to move up and down repeatedly, so as to conduct a clean-up operation on the main filter cylinder. The beneficial effect of the present invention is as follows. The present invention can be used in vehicle using fuel, engine and industry, environmental filtering, according to the flow rate and different designs of material. By a novel structure design, the lifetime of the present filter is greatly improved. During the entire life cycle of the filter, an apparatus which uses the present filter does not need to replace the fuel filter.

Fuel filtration systems having an automatic drain assembly for water that accumulates in the filter housing are described. The filtration system includes a filter media that is configured to remove particulate matter and dispersed water contained within the fuel. The water is drained to a drain reservoir within the filter housing where the water collects. When the water reaches a threshold level, a controller initiates a warning to the engine operator, such as a dashboard light, that instructs the operator to shut the engine off. When the engine is shut off, the collected water is drained through a valve of the automatic drain assembly. In some arrangements, the automatic drain assembly can be retrofitted to existing fuel filtration systems thereby reducing the cost of fitting the automatic drain assembly to existing internal combustion engines.

A fuel filter, including: a housing, an inlet port, and an outlet port. The housing includes: a first axially disposed side wall forming a radially outermost portion of a circumference for the housing; a second axially disposed side wall located radially inward of the first axially disposed wall; a first radially disposed end wall connected to a first axial edge of the first axially disposed wall; and a second radially disposed end wall connected to a first axial edge of the second axially disposed side wall. The outlet port extends from the second radially disposed end wall and is radially aligned with the second axially disposed side wall. The inlet port extends from the first radially disposed end wall.

An in-tank fuel pump assembly and mounting system is disclosed which may be configured for mounting inside a fuel tank. The assembly includes a pump housing, pump mounted to the housing, and pressure relief valve. The housing may comprise upper and lower pump housing units coupled together. The upper housing unit is configured for mounting to a tank opening, which in one implementation may be the fuel fill opening. The lower housing unit extends into the tank to approximately the bottom of the tank. A fuel fill fluid pathway is created through the housing for adding fuel to the tank while the pump assembly remains in situ. The upper housing unit may include a removable fuel cap. The pump housing may include an integral vapor trap.

An in-tank fuel pump assembly and mounting system is disclosed which may be configured for mounting inside a fuel tank. The assembly includes a pump housing, pump mounted to the housing, and pressure relief valve. The housing may comprise upper and lower pump housing units coupled together. The upper housing unit is configured for mounting to a tank opening, which in one implementation may be the fuel fill opening. The lower housing unit extends into the tank to approximately the bottom of the tank. A fuel fill fluid pathway is created through the housing for adding fuel to the tank while the pump assembly remains in situ. The upper housing unit may include a removable fuel cap. The pump housing may include an integral vapor trap.

A heater device of a diesel fuel filter may include a heater housing inserted into a diesel fuel filter, and a heater portion inserted into the heater housing. A plurality of flow-path regions may be formed in the heater portion such that heated fuel passes through the heater portion. Accordingly, heat is transmitted directly from a heater portion including a plurality of heat radiating plates and PTC devices, and thus fuel is rapidly heated and a fuel transfer velocity is increased so as to improve engine starting performance at low temperature, thereby improving marketability and convenience.

A fuel supply apparatus able to stop actuating of a fuel supply pump without mounting a special fuel supply sensor when the fuel supply is stopped or becomes slow, includes a control section which calculates an amount of the fuel in the fuel tank based upon a signal from a fuel gauge, and outputs the result to a fuel meter. The control section also calculates from the fuel gauge signal the amount of the supplied into the fuel tank per unit of time, and if the amount of the fuel supplied per unit of time is determined to be less than a set supply rate, the fuel supply pump is stopped so that a malfunction of the fuel supply can be detected without mounting a special fuel supply sensor.