Abstract: Methods and systems are provided for reducing NVH resultant from collisions between internal components of a hydraulic engine mount. In one example, a hydraulic engine mount may include a de-coupler with a number cavities encased therein and extending along a common circumference of the de-coupler.

Abstract: An engine system has a balance gear coupled to a balance shaft. The balance gear is formed by a disc having first and second opposite sides extending radially outwardly to a circumferential edge defining a series of teeth, with a first sector of the disc having a first aperture therethrough, and a second opposite sector of the disc having a second aperture therethrough. A damper is positioned within the second aperture and extends across the disc. The damper has a container enclosing a plurality of particles therein. Opposed ends of the container are outboard of the first and second sides of the disc. A method of forming the balance gear is also provided.

Abstract: An engine system has a balance gear coupled to a balance shaft. The balance gear is formed by a disc having first and second opposite sides extending radially outwardly to a circumferential edge defining a series of teeth, with a first sector of the disc having a first aperture therethrough, and a second opposite sector of the disc having a second aperture therethrough. A damper is positioned within the second aperture and extends across the disc. The damper has a container enclosing a plurality of particles therein. Opposed ends of the container are outboard of the first and second sides of the disc. A method of forming the balance gear is also provided.

Abstract: Methods and systems are provided for reducing NVH resultant from collisions between internal components of a hydraulic engine mount. In one example, a hydraulic engine mount may include a de-coupler with a number cavities encased therein and extending along a common circumference of the de-coupler.

Abstract: Embodiments may provide a valve train for an engine including a valve stem configured for reciprocating movement to open and close a port in a combustion chamber of the engine. The valve train may also include an elastomeric element coupled with the valve stem, and a mass may be coupled with the elastomeric element and able to move relative to the valve stem.

Abstract: A non-uniform axisymmetric damper device is provided, comprising a first portion that extends radially outward from an outer surface of a flange protrusion, and is spaced from and concentric with the flange protrusion. Further, a second portion of the damper device is provided with an inner surface coupled to an outer surface of the first portion and a non-uniform outer surface extending radially outward from the first portion. Accordingly, a light-weight damper is provided that allows for resonance suppression in six degrees of freedom.

Abstract: The present disclosure relates to a vehicle transmission clutch assembly with squawk reduction techniques, having: a clutch component configured to rotate with respect to a transmission shaft; and a plurality of multi-directional mass dampers coupled to the clutch component, configured to alter a mode of vibration for the clutch component during clutch engagement.

Abstract: Embodiments may provide a valve train for an engine including a valve stem configured for reciprocating movement to open and close a port in a combustion chamber of the engine. The valve train may also include an elastomeric element coupled with the valve stem, and a mass may be coupled with the elastomeric element and able to move relative to the valve stem.

Abstract: Embodiments may provide a valve train for an engine including a valve stem configured for reciprocating movement to open and close a port in a combustion chamber of the engine. The valve train may also include an elastomeric element coupled with the valve stem, and a mass may be coupled with the elastomeric element and able to move relative to the valve stem.

Abstract: Embodiments may provide a hydromount, an inertial track and a method. The hydromount may a curvilinear inertial track fluidically coupled at a first end to a first fluid chamber, and fluidically coupled at a second end to a second fluid chamber. The hydromount may also include a choke disposed within the inertial track at a predetermined location to reduce a width of a flow path within the inertial track at the predetermined location.

Abstract: Embodiments may provide a valve train for an engine including a valve stem configured for reciprocating movement to open and close a port in a combustion chamber of the engine. The valve train may also include an elastomeric element coupled with the valve stem, and a mass may be coupled with the elastomeric element and able to move relative to the valve stem.

Abstract: Embodiments may provide a valve seat insert including a valve seat face. A circumferential contact surface for contacting a cylinder head may be located radially outside and at least partially axially offset from the valve seat face. A discontinuity may be located radially between the valve seat face and the cylinder head and at least partially axially aligned with the valve seat face.

Abstract: A non-uniform axisymmetric damper device is provided, comprising a first portion that extends radially outward from an outer surface of a flange protrusion, and is spaced from and concentric with the flange protrusion. Further, a second portion of the damper device is provided with an inner surface coupled to an outer surface of the first portion and a non-uniform outer surface extending radially outward from the first portion. Accordingly, a light-weight damper is provided that allows for resonance suppression in six degrees of freedom.

Abstract: A fuel injection system for an internal combustion engine includes a fuel injector pocket, formed within a cylinder head, for housing an injector which sprays fuel into a combustion chamber defined by the cylinder head and a piston crown. The injector is mounted with a conical isolator which is loaded at a lower, elastic rate during lower power operation, with the conical isolator being stacked solid between a tapered portion of the injector and a corresponding tapered portion of the cylinder head during high power operation of the engine and injection system. The isolator controls unwanted injector ticking noise, while protecting the integrity of the injector's tip seal by preventing excessive axial displacement of the injector during higher load operation.

Abstract: The present disclosure relates to a vehicle braking assembly with reduced squeal, having: a brake pad operative to apply a braking force to a brake rotor or drum, the brake pad being subject to vibration during braking; and a damper attached to the pad, configured to force a squeal reducing vibration in the brake pad, the damper including: (i) a first mass; (ii) a second mass connected to the first mass by a first shaft; and (iii) a third mass connected to the first mass by a second shaft.

Abstract: The present disclosure relates to a vehicle braking assembly with reduced squeal, having: a brake pad operative to apply a braking force to a brake rotor or drum, the brake pad being subject to vibration during braking; and a damper attached to the pad, configured to force a squeal reducing vibration in the brake pad, the damper including: (i) a first mass; (ii) a second mass connected to the first mass by a first shaft; and (iii) a third mass connected to the first mass by a second shaft.

Abstract: A fuel injection system for an internal combustion engine includes a fuel injector pocket, formed within a cylinder head, for housing an injector which sprays fuel into a combustion chamber defined by the cylinder head and a piston crown. The injector is mounted with a conical isolator which is loaded at a lower, elastic rate during lower power operation, with the conical isolator being stacked solid between a tapered portion of the injector and a corresponding tapered portion of the cylinder head during high power operation of the engine and injection system. The isolator controls unwanted injector ticking noise, while protecting the integrity of the injector's tip seal by preventing excessive axial displacement of the injector during higher load operation.

Abstract: The present disclosure relates to a method of manufacturing a transmission clutch assembly configured to reduce squawk during engagement, the method including: forming a clutch component; and coupling a plurality of mass dampers to the clutch component to split a mode of vibration for the clutch component during engagement.

Abstract: The present disclosure relates to a vehicle transmission clutch assembly with squawk reduction techniques, having: a clutch component configured to rotate with respect to a transmission shaft; and a plurality of multi-directional mass dampers coupled to the clutch component, configured to alter a mode of vibration for the clutch component during clutch engagement.

Abstract: The present disclosure relates to vehicle braking assemblies with reduced squeal and methods for manufacturing the same. Some configurations include concentrated mass dampers attached to a brake rotor or pad. Some embodiments use multiple mass dampers that can be attached to the brake rotor or pad.