Abstract: A heater for starting an engine is disclosed which comprises a cast body and a sheathed heating element embedded in the body at the time of casting thereof and is secured to the outside surface of the lubricating oil accumulation part of the engine or a transmission case. The cast body is mounted so as to close a hole provided in the outside surface of the lubricating oil accumulation part.

Abstract: A combination radiator and oil cooler including a elongated tubular header 10 having a generally cylindrical cross section with an interior 14 defining a liquid side and an exterior 22 defining an air side. A plurality of elongated parallel tubes 12 are joined to the header 10 at one side thereof and fins 16 extended between the tubes 12. A saddle element 24 is disposed on the header 10 oppositely of the tubes 12 and has a periphery 28, 56, joined to the exterior 22 and an internal section 30, 58, bounded by the periphery 28, 56 and spaced from the exterior 22 to define an oil space 32, 60. An inlet fixture 34 and an outlet fixture 36 are secured to the saddle element 24 oppositely of the space 26, 60 and within the periphery 28, 56 in fluid communication with the oil space 26, 60.

Abstract: An oil cooler assembly with an integrated oil filter, comprises: (i) a casing in which an oil-cooling chamber is formed, the casing constituting an external component attached to an engine block; (ii) a cooler-element unit disposed in the oil-cooling chamber of the casing, the cooler-element unit being provided with a cooling-water passage having a cooling-water inlet portion and a cooling-water outlet portion both of which open into the exterior of the casing; (iii) an oil filter detachably mounted in the oil-cooling chamber of the casing so as to divide the oil-cooling chamber into two compartments, the oil filter being coaxially arranged with the cooler-element unit; and (iv) oil-communication passages by which the two compartments of the oil-cooling chamber are communicated with a lubricating-oil passage provided in the engine block, respectively.

Abstract: Disclosed is an oil heating apparatus for an internal combustion engine, in which a heating unit for heating an oil is arranged adjacent to an oil pump on an oil path which extends from an oil pan to the oil pump of the internal combustion engine and allows the oil to pass therethrough, and energization of the heating unit is controlled by a heating control unit. When an oil having a high viscosity due to a low temperature is heated to increase the viscosity thereof, the load on the oil pump is reduced to allow an easy starting operation of the internal combustion engine at a low temperature.

Abstract: An engine cooling device comprises an oil jacket surrounding a cylinder portion of an engine, an oil gallery supplying high-pressure oil to various parts of the engine, and an oil pressure regulator disposed between the oil jacket and the oil gallery to reduce the pressure of the high-pressure oil supplied from the oil gallery and to supply the oil at a reduced pressure to the oil jacket. Thus, the required mechanical strength of the oil jacket can be decreased to decrease the weight of the engine cylinder block.

Abstract: An oil cooler (1) is removably mounted on the side of an engine block (13) with a tubular coolant flow coupling (19) received as a push-fit in an aperture (18) in the block so that the coolant flow connection is simply made as the oil cooler is fastened to the side of the block. The coupling (19) may be a push-fit in respective axially aligned apertures (18,20) in the block and the cooler. The flow coupling may be an inlet coupling for coolant from the block. The end of the coupling that cooperates with the block has an extension (24) that projects into a coolant flow passage (17) in the block and is shaped to form an inlet opening that is directed laterally of the axis of the coupling and upstream of the coolant flow in said passage. The extension (24) collects coolant from said passage and produces a pressure drop in said passage.

Abstract: A marine propulsion device comprising a power head having an engine, a lower unit which carries the engine, the lower unit including a rotatably mounted propeller and a drive shaft housed within the lower unit and operatively coupled to the engine and to the propeller, a swivel bracket adapted for mounting to a transom bracket for affording vertical tilting movement of the swivel bracket about a generally horizontal axis, the swivel bracket having a generally vertical bore, and a tubular pivot shaft connected to the lower unit and supported within the vertical bore for rotation about a generally vertical steering axis, and including therein a fluid passage adapted to communicate with a source of fluid to be cooled, and a water passage located adjacent the fluid passage and adapted to communicate with a flow of water to cool the fluid in the passage.

Abstract: A reciprocating internal combustion engine comprises a cylinder block having at least one bore formed therein and a cylinder liner fitted into each bore. The cylinder liner defines a cylinder in which a piston is slideable, with a combustion chamber being disposed to one side of the piston and a crank mechanism to the other side. An annular groove is provided at the mating surfaces of the cylinder liner and the cylinder block, for example in the outer surface of the liner, and at least one lubricant discharge nozzle is provided in the cylinder liner in communication with the annular groove and opening on the crank side of the piston when the piston is at the combustion chamber end of its stroke. The nozzle is angled towards the combustion chamber such as to discharge lubricant onto the crank side of the piston.

Abstract: A splash lubrication system is provided for motor vehicle transmissions and comprises an oil sump (42) in the bottom portion of a case (30). The case (30) accommodates a transmission shaft (31) provided with gears (34 to 37) which are immersed in the oil at least partly when the said oil sump (42) is filled completely. In order to prevent the synchronizing mechanism from being blocked by cold and, consequently, very viscous oil in the presence of extremely low operating conditions--a condition which could lead to unsynchronized faulty gear shifting operations and, thus, damage to the transmission, the oil sump (42) is connected with a cavity (33) into which oil is drawn from the oil sump (42) under low operating temperature conditions of the transmission. To this end, preferably, an expansion body (38) is arranged in a cavity (33) in a transmission shaft (31) which contracts under cold conditions, and the cavity (33) is connected with the oil sump (42).

Abstract: A lubricating oil supply system has a pump for automatically supplying lubricating oil from an oil tank to a crankcase of an engine through a passage. A bimetallic strip is cantilevered on a wall of the passage. The bimetallic strip is provided so as to reduce the cross-sectional area of the passage at the bimetallic strip when the temperature of the strip rises and to increase the cross-sectional area when the temperature lowers.

Abstract: A radiator arrangement for a motor vehicle has air inlet openings in the front of the arrangement and lateral air discharge openings. The arrangement is composed of an air guiding housing which has two separated spaces for receiving the water radiator and the oil radiator respectively. Separate air inlet ducts are provided for the spaces and a combined air guiding duct combines the air flows downstream of the radiators. The air is then discharged through lateral discharge openings in the side walls of the vehicle located ahead of the front wheels.

Abstract: A lubricating system for an engine comprises an oil pan for storing a lubricating oil therein, an oil cooler for cooling the lubricating oil, and an oil pump including first and second pump rotors contained in a casing. The oil pump is provided with a suction port commonly used for both the pump rotors, a first discharge port exclusively used for the first pump rotor and a second discharge port exclusively used for the second pump rotor. The suction port is in communication with the subsurface of the oil in the oil pan, the first discharge port communicating with an inlet port of the oil cooler, and said second discharge port communicating with the to-be-lubricated portions of an engine.

Abstract: A lubricating oil passage arrangement for a water-cooled internal combustion engine with a cylinder block having a plurality of cylinder bores and a water jacket surrounding the cylinder bores. The cylinder block includes a side wall and a bulging portion projecting laterally outwardly from the side wall for defining a lubricating oil passage adjacent to the water jacket. Lubricating oil flowing through the lubricating oil passage is effectively cooled by the cooling water in the water jacket.

Abstract: Method and apparatus for cooling the cylinder head of an engine of the type in which oil is delivered to the area located above the combustion chambers in the cylinder head and the latter is cooled by thus delivered oil. Oil introducing means through which oil is introduced into the area located above the combustion chambers in the cylinder head are disposed in the vicinity of ignition plug fitting bosses on the cylinder head whereby oil pumped up from the oil supplying device is delivered to the area located above the combustion chambers in the cylinder head through the oil introducing means.

Abstract: The invention relates to a motor vehicle heat exchagner, the heat exchanger comprising a fluid box (10) having the ends of tubes (22) opening out therein, said tubes constituting a heat exchange bundle located inside an envelope (24). Engine exhaust gases flow through said box (10) and said tubes (22), and engine cooling liquid or cabin heater air flow through said envelope (24). The envelope is connected to the fluid box (10) by a tubular element (30) and a perforated plate (18). The envelope (24) is made of a lightweight material which need not be capable of witstanding exhaust gas temperatures.

Abstract: Apparatus compatible with existing internal features of the engine block of an air-cooled gasoline driven internal combustion engine provides improved control of the temperature of the engine's lubricating oil. The apparatus utilizes a temperature-sensing wax servomotor and a piston positioned thereabove within an elongated circular cylindrical chamber. The upper extremity of the chamber communicates with a branching site of an oil conducting conduit where a first branch leads to an oil cooler device and a second branch avoids the cooler device. When the oil in the crankcase is hotter than desired, the servomotor forces the piston upwardly to cause closure of the second branch.

Abstract: A marine propulsion device comprising a propulsion unit adapted to be mounted on the transom of a boat for pivotal movement relative to the transom about a generally vertical steering axis, and about a generally horizontal tilt axis, the propulsion unit including a rotatably mounted propeller, an engine drivingly connected to the propeller, and a wall at least partially defining a cooling water jacket and having therein an opening communicating with the water jacket, and a fluid cooler extending through the opening and including a portion extending internally of the water jacket and having therein a fluid passage adapted to communicate with a source of fluid to be cooled in the fluid cooler.

Abstract: To control the viscosity of oil circulating in a forced-oil circulation path of an engine, oil is conducted to a receptacle located, for example, within the oil pan of the engine or in communication with the overflow outlet stub (14) of the oil pump (3), and oil is conducted from this intermediate receptacle, for example in form of a pan (6) in two parallel paths. One of the paths conducts the oil directly to the suction inlet of the pump after, however, having to overcome a static pressure, for example by flowing over an elevated weir, notch, or through an overpressure valve; the other path is through a flow resistance element (7), for example a constricted tube, a lamella package, or the like, and then to the cooling portion of the oil pan, remote from the suction inlet of the pump.

Abstract: A low profile support for releasably mounting a portable power supply on a vehicle chassis. The support comprises a framework adapted to be secured beneath the vehicle chassis so as to dispose the power supply between the longitudinal frame members of the chassis. The lowermost member of the framework is a closed tubular frame which may provide an oil reservoir for the lubrication system of the power supply. In one embodiment, the support is extended to provide for suspension of a fuel tank therein. In another embodiment, a chassis mountable fuel tank separate from the power supply support is provided.

Abstract: A device for enhancing the removal of heat from an internal combustion engine utilizes an aluminum plate seated within a matching aperture in the upper portion of an otherwise conventional valve cover panel. The combined plate and valve cover panel form an oil retaining chamber positioned above the valves of the engine. Projections such as vanes integral with upper and lower surfaces of the plate further enhance the conduction of heat away from the engine.

Abstract: In a diesel-electric locomotive, maximum speed of the diesel engine is automatically limited as a function of the temperature of the engine lubricating oil so as to prevent damage to the engine, to the engine-driven lube oil pump, and to the external components of the engine lube oil system when the oil is relatively cool and hence very viscous.

Abstract: Apparatus is disclosed for lubrication of the operating components of an internal combustion engine with accelerated heating of the lubricant during engine warmup, comprising (i) a primary circuit for lubricant recirculation including a primary reservoir adapted to receive lubricant drainage from the engine and a primary conduit adapted to return lubricant to the engine, (ii) means for pumping lubricant through the primary conduit to the engine, (iii) means for preheating the lubricant with heat produced by the engine employing a heat exchanger along the primary conduit, and (iv) an auxiliary lubricant reservoir and a return conduit providing fluid communication for the flow of lubricant from the auxiliary reservoir to the primary reservoir. A valve in the return line is controlled to permit flow of lubricant to the primary reservoir in response to a drop in the primary reservoir lubricant level.

Abstract: In a rear engined or mid engined type of automotive vehicle in which a liquid cooled internal combustion engine is mounted at least partly behind a passenger compartment, and a radiator for cooling the cooling fluid of the engine is mounted in front of the passenger compartment, with a mechanism being provided for conducting flow of cooling fluid between the cooling fluid jacket of the engine and the radiator in both directions, a cooling system for lubricating oil of the engine includes a heat exchanger formed with a cooling fluid passage and a lubricating oil passage arranged to exchange heat therebetween to conduct respectively a flow of cooling fluid and a flow of lubricating oil from the internal combustion engine, wherein the cooling fluid passage of the heat exchanger is a part of the cooling fluid flow conducting mechanism, so as not to the heat exchanger without substantially increasing the flow resistance of the cooling fluid flow conducting mechanism.

Abstract: Process and apparatus for the rapid warmup and thermal regulation of the lubricating oil (18) of an internal combustion engine of the type cooled by a cooling fluid (12) with a high specific heat and slight viscosity such as a water-additives mixture, circulating around the cylinders (6) or liners (8) of this engine. According to the invention, this process consists in a heat exchange between this cooling fluid (12) and lubricating oil (18) at the upper zones of these cylinders or these liners, this oil (18) being able to pick up the calories coming from the cylinder head (2) of this engine to transfer them to this cooling fluid (12).Application: particularly to cooling and lubricating of internal combustion engines.

Abstract: The object of the invention is a device for the improving of the starting of an internal combination engine especially during the cold seasons. The device (7) comprises a chamber (10) with the inlet and outlet conduits (121,111). In combination with the chamber (10) is installed a heating element (18, 19). The chamber (10) is connected directly with the main lubricating oil duct of the engine. Preferably the heating element forms at least a part of the flow guide (14), which is installed in a direction deviating from that of the inlet and/or outlet conduit (121,111). The device may be situated anywhere between the oil filter and/or the oil pump and the parts requiring lubrication in the engine provided that there is a direct and short connection from the device to the lubricating oil ducts of the engine.

Abstract: This invention is a lubrication pumping means contained within one or more reciprocating rods to assure lubrication of the crankpin rod bearing and the wrist pin bearing during operation of a two-cycle internal combustion engine. The invention teaches a means to collect and retain a column of lubricating fluid within a longitudinal bore formed in the rod.

Abstract: An automotive engine is provided with an improved multifilter oil lubrication system. At least two filters are provided wherein the majority of the oil flow is through a primary coarse filter. At least one fine secondary filter is provided to filter the oil not going to the coarse filter. The oil from the fine filter is delivered directly to the engine. The improved system may be used with a smaller pump using less horsepower than previously possible by multifilter bypass systems. The addition of the fine filtration increases engine life.

Abstract: A system is provided for regulating the oil temperature of a diesel engine while the latter is in various operating modes. The engine includes a heat exchange unit through which a heat exchange medium circulates and while the engine is in certain operating modes, the system directs the oil flow through the heat exchange unit so that the oil is either heated or cooled by the circulating heat exchange medium. The system includes a valve housing provided with a cavity having an oil inlet port, first oil outlet ports connected to the heat exchange unit, and a second oil outlet port connected to a passage for bypassing the unit. Disposed within the cavity is an adjustable element for effecting interconnection between the inlet port and a selected outlet port. Adjustment of the valve element within the cavity is determined by the oil temperature during predetermined operating modes of the engine.

Abstract: A diesel internal combustion engine with a soot filter in the exhaust system is equipped with a controllable soot burn-off device. The latter comprises a burner arranged in the soot filter and is operable with fresh air separately fed to the soot filter.In order to render the soot burn-off device useful for several purposes, this device is switchable to serve as a warm-up means which heats up the engine and or its running and operating media during or before operation.

Abstract: This invention is a unique lubrication means contained within a hollow shank of a reciprocating rod including a valve means to maintain a supply of lubricant within the shank of the rod to assure proper lubrication of both the crankpin and wrist pin rod bearings during operation of a two-cycle internal combustion engine.

Abstract: This invention is a lubrication pumping means contained within one or more reciprocating rods to assure lubrication of the crankpin rod bearing and the wrist pin bearing during operation of a two-cycle internal combustion engine.

Abstract: An arrangement for heating the operator's cabin of a machine driven by an internal combustion engine utilizes the engine oil as a heating medium as it is pressurized by a hydraulic pump and is elevated in temperature as it passes through a throttling element. To accelerate the heating of the internal combustion engine, the return line from the space heat exchanger into which the heated engine oil flows is located upstream of the engine lubricating points. To increase the heat supply to a portion of the engine oil, the hydraulic pump located downstream of the lubricating-oil feed pump suctions away, for the purpose of limiting the flow, some of the engine oil flowing through the main oil distribution system of the engine.

Abstract: An engine cover is disclosed which replaces the conventional cover generally found on small internal combustion engines. The cover is preferably made of clear Lexan.TM. plastic and is designed to withstand the forces and heat generated by normal engine operation. The cover preferably includes as an integral part thereof a main bearing with heat sinking an auxiliary bearing and an oil fill port.

Abstract: A fluid lubricating circuit for an internal combustion engine which can effectively damp or reduce fluid pressure pulsation in the circuit. To this end, the circuit includes a pressure damper connected between a hydraulic pump and an oil cooler. The pressure damper has formed therein a pair of orifices disposed in a spaced relation from each other in a direction of fluid flow and a damping chamber between the orifices.

Abstract: Herein disclosed is a lubricant heating system for an internal combustion engine equipped with an exhaust pipe which is connected with a heat exchanger. This heat exchanger is constructed to include a communication passage, which communicates with the exhaust pipe so as to be heated by the engine exhaust gas, and a radiating unit which is disposed adjacent to the communication passage and contacts with the lubricant of the internal combustion engine thereby to heat the lubricant with the heat in the exhaust gas transferred from the communication passage. The heat exchanger thus constructed is adapted to promptly heat the lubricant, which is mixed with a fuel, by the use of the exhaust heat of the internal combustion engine, thus promoting the warm-up of the engine. Moreover, impurities such as the mixed fuel or water are evaporated and separated from the lubricant and are promptly discharged out as a blow-by gas.

Abstract: A cylinder head, for a water cooled internal combustion engine, which reduces the thermal stresses. The gas-changing channels and the oil-return channels are located on one side. A main water overflow, in conjunction with an oppositely located auxiliary water overflow, makes possible a precise or directed flow along the valve land portion and around the turbulence chamber or the injection nozzle channel, whereby the flow is kept along the cylinder head bottom by a roof-shaped wall on the side remote from the cylinder block. The strength of the cylinder head is increased, and the oil removal is improved, by associating an oil-return channel with each cylinder. Specially shaped cylinder head screw channels increase the compression or pressure against the combustion chamber walls and effect a more uniform pressure distribution. A more favorable sealing behavior is attained by compensation or expansion curvatures in the cylinder head cover plate.

Abstract: A reciprocating piston internal combustion engine having an intake air system, an exhaust gas system, and an injection pump. To lubricate the injection pump, the latter can communicate with the lubricating-oil system of the internal combustion engine; the injection pump conveys a fuel having a low boiling point. A vaporizer is provided, the input side of which can communicate with the lubricating-oil return line of the injection pump, and the output side of which can communicate with the lubricating-oil system of the internal combustion engine and with the intake air system. The vaporizer serves for purifying the lubricating oil of fuel constituents which have a low boiling point and which contaminated the lubricating oil as a result of unavoidable leakages within the injection pump.

Abstract: An internal-combustion engine includes an oil reservoir, a lubricating oil circuit, a lubricating oil pump drawing oil from the oil reservoir and driving the oil in the lubricating oil circuit and a cooling oil circuit coupled to the lubricating oil circuit. There is further provided a cooling oil pump drawing oil from the oil reservoir and driving the oil in the cooling oil circuit. The cooling oil pump has a lower output pressure than the lubricating oil pump.

Abstract: A heater (16) for heating diesel fuel in a fuel filter (15) to prevent jelling of the diesel fuel is disclosed. The heater (16) includes a receptacle (34) having an open top and an internal cavity (35). The fuel filter (15) is positioned in the internal cavity (35). A first O-ring (36) secured to the receptacle (34) sealingly engages the fuel filter (15) to close the open top. Conduit means connect the internal cavity (35) to a coolant system (31). The conduit means includes an inlet conduit (32) having a first end (32a) which may be connected to for fluid communication with the coolant system (31) and a second end (32b) secured to the receptacle (34) and in fluid communication with the internal cavity (35). The outlet conduit (33) has a first end (33a) which may be connected in fluid communication with the liquid coolant system (31) and a second end (33b) cooperatively connected to the receptacle (34) and in fluid communication with the internal cavity (35).

Abstract: A cooler and filter assembly (2) is disclosed including a cooler housing (4) containing an elongated internal cavity (14) opening into generally planar end faces (16 and 18) of the cooler housing (4) and further including a support structure (6) for mounting the cooler housing (4) on an internal combustion engine and for providing internal supply and return passages (104, 106, 108 and 110) for both engine coolant and lubrication oil through only one of the planar end faces (16) of the cooler housing (4). A thermostatically controlled valve (118) and an oil pressure responsive valve means (80) control the flow of oil through the cooler and filter assembly (2) to insure efficient and safe operation of the assembly (2). A heat exchange means (24) includes a fixed plate-like member (30) for mounting one end of each of a plurality of elongated tubes (26) and also contains oil supply and return apertures (54 and 56) which allow for simplification of the arrangement of flow passages within the assembly (2).

Abstract: A coupler for use in an oil system for an engine which includes a first oil cooler provided adjacent the engine and a second oil cooler provided remotely from the engine. The coupler includes a housing, a first passageway in the housing for coupling an oil output port of the engine to an input oil port of the first oil cooler, a second passageway in the housing for coupling an oil output port of the first oil cooler to an oil input port of the second oil cooler and a third passageway in the housing for coupling an oil output port of the second oil cooler to an oil inport of the engine whereby the first and second oil coolers are connected in series.

Abstract: A cooling unit is provided for an internal combustion engine wherein the latter is provided with a first interior portion having external inlet and outlet ports through which a first liquid circulates and a second interior portion through which a second liquid circulates. The second interior portion is provided with an access opening. The unit includes a base section which overlies the access opening and is sealingly secured to surface portions circumjacent the access opening. The base section is provided with a first set of ports which register with the inlet and outlet ports of the first interior portion, and a second set of ports. Mounted on one side of the base section is a heat exchange section which projects through the access opening into the second interior portion. The exterior of the heat exchange unit is contacted by the circulating second liquid. The interior of the heat exchange section is provided with a passageway through which the first liquid circulates.

Abstract: The temperature of an internal combustion engine is controlled in accordance with engine operating conditions such as engine load and speed by controlling the temperature of a working fluid or fluids of the engine, such as engine intake air, engine cooling water and lubricating oil. To do this there are provided fluid temperature sensing means, engine condition detecting means, a control unit to produce a control signal and means for regulating the working fluid temperature in response to the control signal so as to bring the sensed working fluid temperature closer to a predetermined reference temperature which is set as being a function of engine operating conditions. Preferably the temperature control is operated in such a manner that the working fluid temperature is high at low engine load and low at high engine load.

Abstract: An internal combustion engine has a reservoir containing oil which is circulated through passageways in the engine by an oil pump to lubricate and cool the engine. A tube has a spiral portion located in the reservoir and a cooling liquid, preferably water, is pumped through the tube to cool the heated oil in the reservoir. The water is thus heated and subsequently enters and discharges this heat in a heat receiver which is preferably part of a home-heating system. In a preferred embodiment, the heating system includes a heat pump which is operatively coupled to the heat receiver, the compressor of the heat pump being driven by the engine. In another preferred embodiment, a portion of the engine exhaust pipe extends through the reservoir so that heat from the gases passing through the pipe is at least partially transferred to the oil in the reservoir.

Abstract: A heating system for heating the oil of a machine having a hydraulic or lubricating oil system includes a high-pressure supply pump and a throttling element for heating the medium while reducing the pressure, the pump supplying the lubricating points of the machine at the reduced pressure either via the pressure-reducing element or via a by-pass thereto with a low flow resistance. Heat removed from the heating medium by a heat exchanger may be transferred to the service cabin of the machine for space heating purposes.

Abstract: A gasket screening assembly for an internal combustion engine having an auxiliary oil cooler. A gasket screening assembly is provided between a flange on the block and a complementary flange on the cooler support. Four passageways, two for oil and two for coolant are provided between the cooler support and block through the gasket screening assembly, each being sealed from the other. The coolant path from the block to the cooler support through the gasket assembly is provided with a gasket portion which screens out particles which would tend to block the oil cooler tubes. The gasket screening assembly includes a core, peripheral facing layers and a central zone devoid of facing material. The central zone defines a multiplicity of substantially circular perforations of from 1/8 inch to 3/16 inch in diameter in staggered rows. The zone having the facing layers defines clear-through oil inlet and outlet openings and a clear-through coolant return opening.

Abstract: An arrangement for heating the oil contained within an oil reservoir of a machine or of an internal combustion engine of a motor vehicle includes a hydraulic pump for suctioning the oil from the reservoir and returning it thereto through an oil conduit into which the pump is coupled. At least one operating element in the form of a throttle is coupled into the conduit at the pressure side of the pump for constricting the flow of oil through the conduit, and the pump is coupled with a source of power to be thereby driven. Thus, the temperature of the oil within the reservoir may be elevated by operation of the pump together with the operating element for improving upon the startability of the machine or engine and for sustaining early operation after the start of the machine or engine.

Abstract: An assembly of auxiliary equipment for a water-cooled internal combustion engine having an oil pump, a water pump and an oil cooler/oil filter unit, wherein the oil pump, water pump and oil cooler/oil filter unit are provided as separate interchangeable subassemblies and are combined and interconnected into a constructional unit that can be mounted on the engine.

Abstract: A liquid cooled multi-cylinder internal combustion engine comprises a crankcase which extends above the crankshaft axis and a cylinder block which is fixed to the upper edge of the crankcase by means of a connecting flange arranged on the cooling jacket. The engine has two-part crankshaft main bearings which are connected to the cylinder block by means of through bolts. The cooling jacket of the cylinder block is shorter than the cylinder liners, and adjacent to the cooling jacket and extending to the end of the cylinder liners downward opening conduits are formed which are communicating with each other. These conduits are tightly covered by a cover plate, which is arranged between the lower end of the cylinder block and the upper bearing parts and serve for the oil supply, especially of the crankshaft main bearings of the engine.

Abstract: An arrangement for heating the service cabin of a machine driven by an internal combustion engine, includes a hydraulic pump which is driven by the engine and which pumps oil from the engine's oil reservoir and through an operating element, as for example a throttle, located between the hydraulic pump and the heat exchanger. The heat produced in the operating element and in the hydraulic pump effects an increase in temperature of the oil before reaching a heat exchanger, located in the service cabin, through which the heated oil is returned to the oil reservoir. The pumped oil may be selectively valved directly back into the oil reservoir for quickly heating the oil of the engine, and the hydraulic pump may be arranged for the taking of oil from the pressurized oil lines of the engine's lubricating oil distribution system rather than directly from the oil reservoir.