Abstract: A reverberation condition is detected affecting an electronic hearing device. The hearing device receives sound from a microphone and provides amplified sound to an in-ear receiver. The reverberation condition is predicted to impact clarity of the amplified sound. A sound processing capability is determined that will affect the reverberation. The sound processing capability is applied to the amplified sound and includes one or more of expansion, compression, and directionality processing. In response to detecting the reverberation condition, at least one of the following is performed: enabling the sound processing capability with a reverberation mitigation setting if the sound processing capability is currently disabled; or changing the sound processing capability to the reverberation mitigation setting from a default setting if the sound processing capability is currently enabled. The reverberation mitigation setting is removed when the reverberation condition is no longer detected.

Abstract: A method for fitting a hearing instrument comprises obtaining sensor data from a plurality of sensors belonging to a plurality of sensor types; applying a machine learned (ML) model to determine, based on the sensor data, an applicable fitting category of the hearing instrument from among a plurality of predefined fitting categories, wherein the plurality of predefined fitting categories includes a fitting category corresponding to a correct way of wearing the hearing instrument and a fitting category corresponding to an incorrect way of wearing the hearing instrument; and generating an indication based on the applicable fitting category of the hearing instrument.

Abstract: An ear-wearable electronic device comprises a housing configured to be worn in, at or about an ear of a wearer. A sound generator is disposed in the housing and configured to produce at least a tinnitus masking sound. A physiologic sensor arrangement is disposed in or supported by the housing and configured to measure one or both of a plurality of physiologic parameters and a plurality of physiologic conditions of the wearer. The physiologic sensor arrangement is configured to produce physiologic sensor signals in response to the measurements. A controller is operatively coupled to the sound generator and the physiologic sensor arrangement. The controller is configured to detect one or more of presence, absence, and severity of tinnitus of the wearer using the physiologic sensor signals.

Abstract: Methods and systems are provided for a multi-layered steel gasket for an internal combustion engine. In one example, a system may include a pressure relief device arranged in the multi-layered steel gasket for releasing pressure from one or more fluids flowing through passages of the internal combustion engine.

Abstract: Methods and systems are provided for a multi-layered steel gasket for an internal combustion engine. In one example, a system may include a pressure relief device arranged in the multi-layered steel gasket for releasing pressure from one or more fluids flowing through passages of the internal combustion engine.

Abstract: A cylinder head for an internal combustion engine includes a casting having a number of camshaft support bulkheads. Each of the support bulkheads has a portion of a parent bore bearing for mounting a camshaft. A bulkhead thrust surface is formed in an outer surface of at least one of the support bulkheads. A camshaft is rotatably mounted upon the support bulkheads. The camshaft has at least one thrust bearing member abutting a bulkhead thrust surface which is provided with lubricating oil by means of a radially extending, surface-piercing lubricant distribution channel formed in the bulkhead thrust surface, such that oil flowing in the parent bearing will be caused to be deposited upon the bulkhead thrust surface as well as upon the camshaft thrust surface.

Abstract: An oil level indicating system for an internal combustion engine includes an indicator passageway extending through a cylinder block, cylinder head and up through a ported boss extending through an upper engine cover. The ported boss is sealingly engaged with the cylinder head of the engine so as to prevent fugitive oil from entering indicator passageway, thereby preventing erroneous oil level readings.

Abstract: An oil level indicating system for an internal combustion engine includes an indicator passageway extending through a cylinder block, cylinder head and up through a ported boss extending through an upper engine cover. The ported boss is sealingly engaged with the cylinder head of the engine so as to prevent fugitive oil from entering indicator passageway, thereby preventing erroneous oil level readings.

Abstract: A cylinder head for an internal combustion engine includes a casting having a number of camshaft support bulkheads. Each of the support bulkheads has a portion of a parent bore bearing for mounting a camshaft. A bulkhead thrust surface is formed in an outer surface of at least one of the support bulkheads. A camshaft is rotatably mounted upon the support bulkheads. The camshaft has at least one thrust bearing member abutting a bulkhead thrust surface which is provided with lubricating oil by means of a radially extending, surface-piercing lubricant distribution channel formed in the bulkhead thrust surface, such that oil flowing in the parent bearing will be caused to be deposited upon the bulkhead thrust surface as well as upon the camshaft thrust surface.

Abstract: A shaft mounting device for an internal combustion engine includes a bearing body having a mounting base for engaging an engine structure, and a semi-circular bore which is serviced by a lubricant distribution channel. An integral flow regulator, which is formed in place as a partial hydraulic obstruction, is located within the lubricant distribution channel. Because the flow restriction is integral, a separately machined flow restrictor is eliminated.