Methods, apparatus, systems, and articles of manufacture of valve packing apparatus and related methods. An apparatus includes a cartridge including packing components and a spring. The cartridge is dimensioned to fit in a bore of a bonnet of a valve. A retainer is disposed in an aperture of the cartridge. The retainer is removable from the aperture to release the spring to apply a predetermined compressive load to the stack of packing components.

Methods, apparatus, systems, and articles of manufacture of valve packing apparatus and related methods. An apparatus includes a cartridge including packing components and a spring. The cartridge is dimensioned to fit in a bore of a bonnet of a valve. A retainer is disposed in an aperture of the cartridge. The retainer is removable from the aperture to release the spring to apply a predetermined compressive load to the stack of packing components.

A flap device for an internal combustion engine includes a flow housing comprising a flow channel, an actuating shaft, a flap body arranged on the actuating shaft in the flow channel, a housing bore arranged in the flow housing, a lever fixed on the actuating shaft, a bearing bush arranged in the housing bore, and a sealing disk comprising a surface which is at least partially spherically shaped. The housing bore has the actuating shaft protrude outwards therethrough. The lever comprises a rear wall. The bearing bush has the actuating shaft mounted therein. The surface rests under tension against the rear wall of the lever.

A flap device for an internal combustion engine includes a flow housing comprising a flow channel, an actuating shaft, a flap body arranged on the actuating shaft in the flow channel, a housing bore arranged in the flow housing, a lever fixed on the actuating shaft, a bearing bush arranged in the housing bore, and a sealing disk comprising a surface which is at least partially spherically shaped. The housing bore has the actuating shaft protrude outwards therethrough. The lever comprises a rear wall. The bearing bush has the actuating shaft mounted therein. The surface rests under tension against the rear wall of the lever.

Methods, apparatus, systems, and articles of manufacture of valve packing apparatus and related methods. An apparatus includes a cartridge including packing components and a spring. The cartridge is dimensioned to fit in a bore of a bonnet of a valve. A retainer is disposed in an aperture of the cartridge. The retainer is removable from the aperture to release the spring to apply a predetermined compressive load to the stack of packing components.

Methods, apparatus, systems, and articles of manufacture of valve packing apparatus and related methods. An apparatus includes a cartridge including packing components and a spring. The cartridge is dimensioned to fit in a bore of a bonnet of a valve. A retainer is disposed in an aperture of the cartridge. The retainer is removable from the aperture to release the spring to apply a predetermined compressive load to the stack of packing components.

A valve assembly includes a valve body, a bonnet coupled to the valve body, a stem within the stem bore, a bonnet cap axially aligned with the bonnet along a stem bore axis, and a valve drive train coupled to the stem. The valve assembly also includes a first eutectic ring, positioned between a bonnet cap interior surface and an upper shelf of the valve drive train, the first eutectic ring blocking axially upward movement of the valve drive train when in a solid state, and a second eutectic ring, positioned between a lower bonnet cap interior surface and a lower shelf of the valve drive train to fill a gap, wherein the bonnet cap is configured to move in an axially downward direction after the first and second eutectic ring transition to a flowable state.

A valve assembly includes a valve body, a bonnet coupled to the valve body, a stem within the stem bore, a bonnet cap axially aligned with the bonnet along a stem bore axis, and a valve drive train coupled to the stem. The valve assembly also includes a first eutectic ring, positioned between a bonnet cap interior surface and an upper shelf of the valve drive train, the first eutectic ring blocking axially upward movement of the valve drive train when in a solid state, and a second eutectic ring, positioned between a lower bonnet cap interior surface and a lower shelf of the valve drive train to fill a gap, wherein the bonnet cap is configured to move in an axially downward direction after the first and second eutectic ring transition to a flowable state.

A closure assembly including a retaining cover, a first catch plate sitting partially within the retaining cover, a second catch plate sitting partially within the retaining cover opposite the first catch plate and spaced apart from the first catch plate, and a closure pressing against the first catch plate and pressing against the second catch plate.

A closure assembly including a retaining cover, a first catch plate sitting partially within the retaining cover, a second catch plate sitting partially within the retaining cover opposite the first catch plate and spaced apart from the first catch plate, and a closure pressing against the first catch plate and pressing against the second catch plate.