Abstract:
The thermoelectric facility has a thermoelectric generator and a structure for limiting the temperature thereof. The structure has a flat compartment which is at least substantially filled with an evaporable working medium. The dimensions of the compartment are adapted to those of the thermoelectric generator and the compartment is thermally connected to a heat source or to the thermoelectric generator across a large surface of its opposite surfaces. The temperature-limiting structure also includes a conduit system, connected to the compartment, into which a recirculation cooler is integrated to which a gaseous portion of the working medium can freely rise from the compartment. The working medium should have a boiling point that is at least below a critical temperature above which the thermoelectric generator will be permanently damaged. The thermoelectric facility is especially useful for motor vehicles that are operated by an internal combustion engine.
Abstract:
The present disclosure is directed to injectors with integrated igniters providing efficient injection, ignition, and complete combustion of various types of fuels. These integrated injectors/igniters can include, for example, insulators with adequate mechanical and dielectric strength to enable high-energy plasma generation by components that have very small dimensions, multifunction valving that is moved to injector multiple bursts of fuel and to induce plasma projection, a fuel control valve at the interface to the combustion chamber for the purpose of eliminating fuel drip at undesired times, and one or more components at the interface of the combustion chamber for the purpose of blocking transmission of combustion sourced pressure.
Abstract:
Engine cooling structure directs cooling air, introduced into a case by operation of a fan, to a cylinder block of an engine and then discharges the cooling air out of the case through an outlet port along meandering flow passages. Case cooling structure directs cooling along the inner surface of the case. Further cooling flow passage directs the air to vertically-oriented heat radiating fins so that the cooling air flows upward along the fins and then is discharged through the outlet port. Metal cooling-fan cover is supported by the lower cover via mounting members, and a resin-made cover guide is fastened to the engine together with supporting portions and interposed between the fan cover and the engine.
Abstract:
A sealing region where a valve seat and an outer peripheral surface of a enlarged diameter portion of a flare portion are contacted to each other is configured so that an end on a side opposite a combustion chamber is positioned at a position same as or on a side away from the combustion chamber than an end on a side close to the combustion chamber of a connecting region where a lid member and an inner peripheral surface of the enlarged diameter portion are connected with respect to the axis line direction.
Abstract:
In a two-cycle, opposed-piston internal combustion engine, opposed pistons disposed in a cylinder are coupled to a pair of side-mounted crankshafts by connecting rods that are subject to substantially tensile forces acting between the pistons and the crankshafts. This geometry reduces or eliminates side forces between the pistons and the bore of the cylinder. The cylinder and the pistons are independently cooled to reduce cylindrical deformation caused by thermal expansion during engine operation.
Abstract:
The invention provides a system for capturing waste heat from a heat source via an air cooled radiator to heat a container of windshield washer fluid in a motor vehicle. The system's components include a radiator, means to induce air flow through the radiator, and a shroud assembly for mounting a windshield washer fluid container downdraft of the radiator. The shroud assembly includes a radiator shroud that is adapted to mount onto the radiator to define a plenum for receiving heated air and a windshield washer fluid container. The windshield washer fluid container may be formed with the radiator shroud as a single integral unit. On the container surface is a heat conductive element that is in direct contact with both the heated air flow and windshield washer fluid.
Abstract:
A method of controlling alternator temperature and engine temperature for a vehicle is provided. The method comprises rotating a first drive shaft to generate electricity during an operation of an engine; rotating a second drive shaft to cause pumping of coolant to cool at least portion of the alternator and the engine where the first and second drive shafts are operatively coupled such that rotation of the first drive shaft imparts rotation to the second drive shaft; and selectively routing coolant through multiple different fluid pathways in response to an engine operation condition.
Abstract:
A heat exchanger is provided for dissipating heat from a dual turbocharged engine. The heat exchanger has a jacket water cooler, and first and second charge air coolers. The three coolers are arranged in parallel enabling each to operate with a maximum temperature differential, and have fronts that lie in parallel planes. Charge air from a first turbocharger is directly piped to the first charge air cooler, and charge air from the second turbocharger is directly piped to the second charge air cooler. A first baffle is between and upstream of the first charge air cooler and the jacket water cooler. A second baffle is between and upstream of the second charge air cooler and the jacket water cooler. The baffles can direct selected amounts of air to each of the three coolers and prevent radial convective scrubbing. A fuel oil cooler can also be provided.
Abstract:
An engine-driven work machine is provided in which an engine/work machine unit (5) and an exhaust muffler (23) are housed in a box (30), the box (30) is provided with a cooling air passage (44) that passes the area around the engine/work machine unit (5) and the exhaust muffler (23), and a cooling fan (15) driven by the engine (2) is disposed in the cooling air passage (44), wherein the box (30) is provided with blocking means (51) for blocking the cooling air passage (44) between the engine (2) and the exhaust muffler (23) when running of the engine (2) is stopped. The heat of the high temperature exhaust muffler can thus be prevented from affecting the engine/work machine unit even when running of the engine is stopped, while maintaining the soundproofing of the box housing the unit, etc.
Abstract:
A water-cooled internal combustion engine has a cylinder head 21 provided with a cylinder head water jacket Jh through which cooling water flows. The cylinder head water jacket Jh includes a combustion chamber water jacket 70 surrounding combustion chambers 26 and an exhaust passage water jacket 71 around an exhaust manifold passage 38. The exhaust gas discharged from the combustion chambers 26 through exhaust ports 28 flows through the exhaust manifold passage. The exhaust passage water jacket 71 is divided into an upstream water jacket 72a and a downstream water jacket 72b by a partition wall 75. The cooling water flows from both the upstream water jacket 72a and the downstream water jacket 72a into the combustion chamber water jacket 70. Equality in temperature between a combustion chamber wall and an exhaust passage wall is improved and the cylinder head 21 is heated in a uniform temperature distribution.
Abstract translation:水冷式内燃机具有设置有冷却水流过的气缸盖水套J H 2的气缸盖21。 气缸盖水套J< h>包括围绕燃烧室26的燃烧室水套70和围绕排气歧管通道38的排气通道水套71。 从燃烧室26经排气口28排出的废气流过排气歧管通道。 排气通路水套71通过分隔壁75分为上游侧水套72a和下游侧水套72b。 冷却水从上游水套72a和下游水套72a两者流入燃烧室水套70。 在燃烧室壁和排气通道壁之间的温度平衡得到改善,气缸盖21以均匀的温度分布被加热。