Abstract:
An opposed piston engine includes a valve mechanism for regulating fluid flow through an opening formed in a cylinder of the engine. The mechanism includes a valve operatively coupled to the cylinder so as to be rotatable to a first position to seal the opening and to a second position to unseal the opening, and at least one cam surface operatively coupled to the cylinder so as to be movable with respect to the cylinder to engage the valve so as to produce rotation of the valve.
Abstract:
The valve system for opposed piston engines essentially comprises a single poppet valve opening into the common combustion chamber between the two opposed pistons of each piston and cylinder pair. The engine for which the mechanism is adapted includes a rotating internal cylinder surrounding each piston pair, with a stationary outer cylinder or case surrounding the rotating cylinder. The valve is pivotally attached at one side or end thereof to the edge of the valve port of the rotating cylinder, and is actuated by an arm or arms having guides (rollers, etc.) at the distal end(s) thereof, which are captured in corresponding cam track(s) or channel(s) formed in the fixed outer cylinder or case of the engine. The cam track has a variable radius, with the valve arm(s) and guide(s) alternately lifting and lowering as the guide(s) travel(s) in the variable radius cam track(s), thereby closing and opening the valve.
Abstract:
An ignition source for initiating combustion is provided. The ignition source includes an electrical delivery conductor mounted in a delivery conductor mounting structure. An electrical ground conductor is mounted in a ground conductor mounting structure and extends from the ground conductor mounting structure to a point proximate the delivery conductor to define an ignition spark gap between the delivery conductor and the ground conductor. At least one of the delivery conductor and the ground conductor is mounted so as to be positionable with respect to the other one of the delivery conductor and the ground conductor to selectively adjust a width of the ignition spark gap.
Abstract:
The centrally located ignition source in a combustion chamber is an electrical conductor spanning the general center of the combustion chamber, with a spark gap at the general center of the conductor. The device may be offset from the combustion chamber centerline, and/or the spark gap may be offset from the conductor center, as required. The centrally located ignition source is particularly well suited for use in an opposed piston engine having a rotary sleeve valve mechanism, with the conductor rotating with the sleeve valve and crossing the combustion chamber between the two pistons. An arcuate commutator section may be disposed upon the exterior of the rotary sleeve valve, with a contact finger making electrical contact between the electrical energy source and the commutator section to supply electrical energy to the ignition source. The device is also suitable for use in stationary installations, e.g., gas furnace combustors, etc.
Abstract:
Pressurized air may be generated within a lightweight opposed piston engine without the need to make use of a supercharger. The lightweight engine may be combined with one or more lightweight micro-generators.
Abstract:
A four-stroke opposed piston engine includes a rotating cylinder with a circumference and an aperture defined through the circumference, first and second opposing pistons, optional first and second opposing cylindrical spacers, first and second opposing piston caps, a spark rod that bisects the cylinder with insulating elements, and a pair of opposing gears.
Abstract:
An earplug mounting device for insertion into the human ear adapted to support electronic telecommunications equipment, other audio equipment or visual aids is disclosed. A main body portion of semi-rigid resilient material is insertable into the outer ear of a user and has a main body passageway therethrough. A snap connection is provided between the main body and a boom, which boom extends forwardly therefrom. A boom passageway is in air communication with the main body passageway. A pressure chamber formed along the boom passageway, with a vent providing air flow communication with the outside of the chamber, to equalize air pressure between outside air and an inner ear is provided. A receiving tube, connected to a radio receiver, is rotatably connected to the boom by a second snap connection utilizing a fitting having a third passageway in communication with the first two passageways.
Abstract:
An earplug mounting device individually molded to the shape of a user's ear is adapted to fit tightly therein and support a forwardly extending boom from which can be suspended audio or visual aids of various types and configurations. The earplug mounting device may be further adapted to conduct sound from audio communication devices to the inner ear while being of such construction as to dampen outside ambient noise.