Ohio Associated Enterprises, Inc.

Other

Paul M Dadd

John T Venaleck

Park French

John E Hartman

Charles R Anspach

Carl W Rose, Jr

Devices are provided for regulating the pressure pulses and flow pulses that are emitted in the exhausts of apparatus and equipment such as internal combustion engines, compressors and poppet valves. The pressure pulses are reflected from a reflecting member to their source as expansion waves that create a reduced pressure zone that allows subsequently emitted flow pulses to be more easily emitted, thereby enhancing the operational efficiency of the apparatus and equipment. Flow pulses that contain exhaust products such as the products of combustion from an internal combustion engine are regulated so that the exhaust flow they generate is not unduly restricted within the device and an undesirable back pressure that resists the emission of flow pulses from their source created. In regulating the pressure and flow pulses, the devices attenuate the noise generated by the pressure and flow pulses.

Devices for regulating pressure and flow pulses

An outdrive system for water craft includes in an embodiment use of plastic or other relatively flexible material, e.g., compared to metal, as a housing material, and techniques which enable and/or at least facilitate use of such housing material. Several of those techniques employ a flexible member, such as a belt, to couple power between the input and output of an outdrive, and heat conducting back bending surfaces to urge the belt legs toward each other and to remove heat from the outdrive, an anti-shear stuffer or fence to reduce energy losses such as heat, and lubricant requirements, and/or an eccentric mechanical tensioning device for the belt. The invention also relates to use in a vehicle drive, especially for water craft, of housing materials a substantial part of which are not subject to corrosion, galvanic action and the like. Other features include a rotational shock absorber system, an output shaft support, an improved sprocket tooth profile, a water by-pass silencer, an L C (analogous to an electrical inductor and capacitor filter) exhaust silencer, a split eccentric tensioner, an active tensioner, a transmission and a transmission shift mechanism, tensioning protocol and a cooling method. Also, in an embodiment the housing may be made partly or entirely of thermally conductive material, such as, aluminum, which facilitates and enhances heat removal by conduction to the water in which the outdrive is immersed.

Marine drive system with improved drive belt

It is an object of the current invention to provide a trim cylinder that is cost effective; it is further an object of the invention to provide a cylinder that has few parts, less than one-third the number of parts of present art; it is further an object of the invention to provide a unique and simple check valve for operation as a shock absorber and further to provide passages integral of the extruded or molded body allowing plumbing to be attached at one end only of the cylinder; also to eliminate the plastic shroud which normally covers unsightly plumbing.

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Mentor, OH, United States of America

Paul M Dadd