Abstract: A hydraulic control device (10, 90) for load pressure-independent control of a double-acting motor, in which by replacing the pressure balance regulator throttle slide valve element (68, 93) but using the same housing (13), the control device can be converted from a directional-control valve (11) with a primary individual pressure balance regulator (12) for load pressure-independent control to a directional-control valve (91) with a secondary individual pressure balance regulator (92) for an oil flow distribution in the event of undersupply. To this end, in a second longitudinal bore (41) containing the control pressure opening (68, 93), the housing (13) has three axially spaced infeeds of control pressure openings (51, 52, 53), which can be activated differently through interchangeable installation of a sealing plug (66) and a stopper (67) and, together with the respective throttle slide valve element, constitute a primary pressure balance regulator (12) or a secondary pressure balance regulator (92).

Abstract: In the case where a full-tank state is brought about by feed, excessive ascent of a liquid level in a loading arm is suppressed and excessive feed is prevented. A finned umbrella valve is provided for throttling a flowrate of a fuel vapor prior to closing of a float valve.

Abstract: A 3/2 normally closed module includes a main body, a housing and a magnetically energizable coil. The main body includes a bore, an armature and a rod. The housing includes first and second valve seats and is configured to receive a first and second ball. The housing also includes a first, a second and a third port. When the module is in an energized state, current flows through the coil, generating a magnetic field. The magnetic field forces the armature against the rod, which in turn, forces the first ball to engage the first valve seat. As the first ball engages the first valve seat, the first ball forces the second ball to disengage from the second valve seat. As a result, a fluid flow path is created between the first and second ports. When the module is in a de-energized state, a spring, disposed between the main body and the second ball, forces the second ball to engage with the second valve seat.

Abstract: A variable force actuator with a double needle poppet assembly includes a housing in which a first poppet and a second poppet are slidably disposed. The second poppet fits within the first poppet, and both poppets move when a nearby coil is energized to establish, in combination, a fluid flow configuration in response to the amount of energy applied to the coil.

Abstract: Method and apparatus for isolating hydraulic devices in a stacked hydraulic circuit of modular design employing an isolator valve module which enables partial and/or complete isolation of components in a hydraulic system to be isolated for inspection, testing, maintenance or replacement, by selective operation of the isolator valves in the isolator valve module. The isolator valve module may be a sub-plate module supporting other modules or a plurality of stacks of modules or may be a “sandwich” type module sandwiched between a sub-plate and another module or between two sandwich-type modules.

Abstract: A ventilation and/or a pressure-equalizing system for a fuel tank, in particular for a fuel tank of a motor vehicle, includes at least one aeration and/or de-aeration line leading into the fuel tank, via which the gases and/or vapors may be removed from or conducted into the fuel tank. A collection device for liquid fuel is coupled into the aeration and/or de-aeration line, the collection device including at least two chambers, of which one is used as a temporary storage device for liquid fuel and is connected to a return line into the fuel tank.

Abstract: A low leak pressure control actuator for, e.g., controlling pressure in an automatic transmission system, includes a poppet and a check ball slidably disposed within a housing. The poppet and check ball are movable between a de-energized configuration, plural partially energized configurations, and a fully energized configuration. In the de-energized configuration, the poppet and check ball prohibit all flow to and from the supply port and permit flow between the control port and the exhaust port. In the partially energized configurations, the poppet and check ball permit flow to and from all of the ports, and incremental changes in the internal displacement of the poppet produce incremental changes in a control pressure. In the fully energized configuration flow, the poppet and check ball prohibit all flow to the exhaust port and permit fluid flow between the supply port and the control port.

Abstract: A fuel tank vent apparatus comprises a housing. The housing comprises inner and outer sleeves providing a fuel vapor transfer passageway therebetween so that liquid fuel entrained in fuel vapor is shed therefrom as fuel vapor flows from a fuel vapor transfer port formed in the outer sleeve through the fuel vapor transfer passageway to a fuel vapor inlet port formed in the inner sleeve to produce a flow of demoisturized fuel vapor for discharge from the housing.

Abstract: An air-blow valve configured for clean-in-place capability is provided. The valve comprises a valve body defining a valve seat and internal fluid passageways. The valve further comprises valve components disposed within the valve body, including a plug, a piston, and a spring. The valve is separately operatively connected to a pressurized-air source and to a sanitizing-fluid source. In operation, the spring biases the piston, causing the plug to engage the seat, to prevent undesired fluid flow between the passageways and the connecting conduits. Alternatively, the spring biases the piston, causing the plug to disengage the seat, allowing fluid flow between the passageways and connecting conduits. Pressurized air is used to space the plug from the seat to achieve flow whenever desired, or alternatively to engage the seat to prevent fluid flow when desired.

Abstract: A plastic bodied fuel vapor management valve has mounting lugs thereon which are adjustably snap-locked onto a bracket provided on a cover for the tank access opening to selectively locate the valve vertically on the bracket. As the valve is engaged with the bracket, a vapor vent fitting provided on the cover is received in the valve outlet and sealed by a seal ring. The cover preferably comprises a mounting flange for a fuel level signal sender.

Abstract: A liquid fuel trap device for a vehicle fuel tank, comprising a housing formed with a confined space with at least one inlet port connectable to a corresponding fuel valve, an outlet port connectable to a fuel vapor recovery system, and a liquid fuel discharge valve adapted for discharging liquid fuel from the confined space into the tank. The housing further comprises a connecting arrangement for attaching the device on an inner surface of an upper wall of the fuel tank.

Abstract: A first normally open solenoid valve “A” is connected to passageway (32). A second normally open solenoid valve “B” is connected to a passageway (36). A latching valve (24) includes a valve spool chamber (26) and a valve spool (50) within the chamber. An air-delivery conduit (20) delivers pressurized air to both a first passageway (32) and a second passageway (36). Passageway (32) is connected to one end of the valve spool chamber (26). Passageway (36) is connected to the opposite end of the valve spool chamber (26). The valve spool (50) has two positions. In the first position, passageway (32) is connected with a passageway (40) that extends to an air-operated device (44). Flow through the valve (24) to and from passageway (36) is blocked. In the second position, flow from passageway (32) to passageway (40) is blocked. Also, flow through the valve (24) to and from passageway (36) is blocked.

Abstract: A variable pressure solenoid (VPS) control valve. The VPS control valve includes an hydraulic section and a magnetic section. The hydraulic section includes a movable valve that receives a pressurized fluid and generates a control pressure, and the magnetic section controls the operation of the movable valve. The movable valve includes an inlet ball valve for limiting the flow of pressurized fluid into the hydraulic section and an exhaust valve for limiting the exhaust of pressurized fluid out of the hydraulic section. The magnetic section includes a spring-biased armature, and an electromagnetic coil for generating a variable electromagnetic field in response to an electrical input signal for moving the spring biased armature.

Abstract: To provide a four-way solenoid valve having a three-way solenoid valve of which non-concentricity between a valve element and a valve hole is small, if any. A core of a three-way solenoid is integrally formed with a refrigerant passage extending axially therethrough, an annular projection forming a valve seat, and a guide for guiding reciprocating motion of a needle forming a valve element. A plug closing a cylinder of a body to define the pressure control chamber is also integrally formed with a valve seat and a guide for guiding reciprocating motion of a needle forming a valve element associated with the valve seat. This causes the needles to be seated on the valve seats associated therewith in respective states guided by the guides substantially concentric with the valve holes, which makes it possible to impart sufficient sealing properties to the valve portions when each valve is closed.

Abstract: A directional control valve includes a pressure regulator piston configured as a hollow slide with a radial passage positioned in such a way that a connection from the internal chamber of the pressure regulator piston to a pump pressure annular channel (P) can be regulated by the radial passage and a second radial passage of a directional control valve piston. The second radial passage constitutes a control edge, which is used to regulate the connection from the internal chamber to a load sensing annular channel (LS). An annular groove, which in the neutral position forms a connection from the internal chamber to the load sensing annular channel (LS), is joined to the second radial passage. The pressure regulator is impervious to different flow forces caused by different mass fluxes and ensures that the hydraulic consumer is prevented from moving in the neutral position.

Abstract: A float bell for use in a condenser comprising a center sleeve extending along a centerline comprising a first and second perimeter, an outer sleeve comprising a first and second perimeter encompassing the center sleeve, a top in contact with the second perimeter of the outer sleeve and the second perimeter of the center sleeve, and a plurality of stiffeners extending between the center sleeve and the outer sleeve.

Abstract: In a dual hydrant, the combination comprising two spaced apart tubular bodies to receive in-flow of fluids A and B, a fluid mixing zone to receive fluids A and B from said bodies, manually operable flow control valves in the two tubular bodies, a primary check valve in one of the bodies to pass forward fluid flow toward said mixing zone, and to block reverse flow in the one body, an outlet from the mixing zone, and a secondary check valve in series with the outlet to pass forward flow from either or both of the two bodies through the outlet, and to block reverse flow from the outlet to the mixing zone.

Abstract: An apparatus is for inhibiting fuels from flowing out of fuel tanks, and includes a housing having an evaporator opening, a floating valve, a seat, a cylinder having a peripheral wall and a lateral hole formed in the peripheral wall and communicating the inside of the cylinder with the outside, a bottom hole formed in the seat and communicating the inside of the cylinder with the outside, and a flow passage extending from the bottom hole to the lateral hole, flow passage in which a part of the peripheral wall of the cylinder intervenes. Alternatively, the apparatus include a flow passage extending from the bottom hole to the evaporator opening and constricted partially by the seat and a bottom of the floating valve. Thus, gases are less likely to float the floating valve upward, but liquids are likely to float it upward.

Abstract: A manual control mechanism for a lift unit having a lift arm and a hydraulic cylinder for lifting the lift arm up and down. The mechanism includes a control valve configured as a three-position switchover valve for selectively providing lowering, neutral and elevating conditions according to a spool position for controlling movement of the hydraulic cylinder, a lift lever for manually operating the control valve and an operational path for guiding operational displacement of the lift lever. The operational path includes an inching operational path for operating the hydraulic cylinder at a creeping speed by slightly opening a port of the control valve and a main operational path for operating the control valve over an entire stroke range thereof. An operational feel when the lift lever is operationally displaced along the inching operational path is different from an operational feel when the lift lever is operationally displaced along the main operational path.

Abstract: An insert or cartridge that fits into a cavity in a valve body provides a check valve function and an anti-cavitation function and a pressure relief function. This insert is substantially circular and has an internal cavity with a valve assembly that has two pairs of valve seats, one pair of valve seats providing the anti-cavitation function and the other pair of valve seats providing the pressure relief function. The outside of the insert itself engages with a sealing surface in the cavity in the valve body to provide the check valve function.