摘要:
An internal combustion engine for an outboard motor comprises a cylinder block having first and second banks of cylinders that extend transversely with respect to each other in a V-shape so as to define a valley there between. An exhaust manifold conveys exhaust gas from the internal combustion engine and is at least partially disposed in the valley. A supporting mechanism supports the exhaust conduit with respect to the internal combustion engine. The supporting mechanism is configured to allow the exhaust conduit to move with respect to the internal combustion engine in 360 degrees in a plane defined by the lateral and transverse axes, and laterally towards and away from the internal combustion engine, thereby facilitating assembly of the exhaust manifold and the internal combustion engine despite positional tolerance differences there between.
摘要:
A boat drive including combustion engine located within the hull and a drive unit located outside the hull. The drive has a propeller shaft and an exhaust system with an exhaust duct and an outlet. The exhaust duct connects the engine to the exhaust outlet for carrying away exhaust gases from the engine and cooling water introduced into the exhaust duct. The exhaust outlet is arranged in the propeller shaft. A first exhaust release opening is arranged in the exhaust duct, between the engine and the exhaust outlet, so that during operation, a first fraction of the exhaust gases and cooling water is discharged through the first exhaust release opening, while a second fraction of the exhaust gases and the cooling water is discharged through the exhaust outlet. A device is provided for adjusting the first fraction that can be discharged through the first exhaust release opening.
摘要:
A damper unit includes a first damper arranged to transmit a torque around a rotation axis transmitted from an input member side to an output member side, an intermediate member arranged to transmit a torque around the rotation axis transmitted from the first damper to the output member side, and a second damper arranged to transmit a torque around the rotation axis transmitted from the intermediate member to the output member side, wherein at least a portion of the second damper is disposed on a straight line that passes through the first damper and is parallel or substantially parallel to the rotation axis.
摘要:
An idle exhaust relief passage is provided with a valve that can inhibit flow through the passage in response to certain operating conditions of an engine of an outboard motor. More particularly, operation above a predetermined threshold can be used to inhibit flow through the idle exhaust relief passage. A valve, configured for this purpose, can be a flapper valve.
摘要:
The present invention is a device which redirects motor exhaust fumes a distance away from a boat. This device can be applied to a boat's propulsion motor or to its generator for purposes of preventing carbon monoxide poisoning of a boat's passengers. The device includes an adaptor for attaching to a boat motor exhaust port and an elongate extension hose attached to the adaptor. The extension hose is made buoyant through use of a plurality of flotation collars disposed along the length of the hose. An extension rod is inserted into the collars to keep the hose rigid and the distal exhaust end of the hose directed away from a boat to which the device is attached.
摘要:
A system for reducing the infrar d visibility of an amphibious vehicle that generates hot exhaust gas when it is in a body of water has a nozzle directed downward at and closely juxtaposed with a surface of the body of water. This nozzle expels the hot exhaust gas downward at the surface so as to form a water-droplet cloud that cools the gas and masks the vehicle. the nozzle is set at an angle of at most 60null to vertical.
摘要:
Disclosed is an exhaust mixer (50) including a passage (54) extending from an inlet (56) to an outlet (58) that is coincident with a centerline axis of mixer (50). Several ridges (68) are circumferentially disposed about the axis and each flare away from the centerline axis relative to a direction along the centerline axis from inlet (56) toward outlet (58). Ridges (68) each define a corresponding one of several inner channels (74) radially disposed about passage (54) that each intersect passage (54) between inlet (56) and outlet (58). Several outer channels (84) are also radially disposed about passage(54) and are each positioned between a corresponding pair of inner channels (74). Ridges are each shaped to turn inner channels (74and outer channels (84) about the axis as ridges (68) extend along the indicated direction. Inner channels (74) diverge away from the axis and one another in this direction while outer channels (84) converge toward the axis and one another in this direction.
摘要:
Engine noise attenuator for motor-propelled boats including a housing made of resilient material and having one end connected to the exhaust pipe and a perforated pipe disposed within the housing and supported by the housing wherein the perforated pipe is in communication with the exhaust pipe such that the perforations form a resonance chamber between the housing and the exhaust pipe.