Abstract:
An object of the invention is to provide a rubber modified asphalt type of waterproofing composition which can be used in a normal temperature type of spray waterproofing method and can find its application in waterproofing, moisture-proofing, rustproofing, and filling buildings and structure for engineering works, said waterproofing composition coagulates instantaneously to form a stable yet firm waterproofing layer. This rubber modified asphalt type of waterproofing composition comprises a cationic rubber modified asphalt emulsion and an organic coagulating agent.
Abstract:
A cylinder block is detachably connected to a transmission casing so that an engine and a transmission constitutes a single unit. A crankshaft is entirely supported on the cylinder block. A crankshaft gear is installed on the crankshaft at the nearly central portion thereof. An intermediate shaft with an idler gear and an idler shaft with an input gear are entirely supported on the transmission casing in such a way that the idler gear and input gear are meshed with each other. The crankshaft gear and idler gear are automatically meshed with each other when the cylinder block is installed in place on the transmission casing.
Abstract:
In order to prevent large amounts of liquid coolant from boiling over from a coolant jacket of an evaporative cooling system wherein coolant vapor is used as a vehicle for removing heat from the engine to the condenser in which the coolant vapor is condensed, a vapor manifold is arranged to collect any liquid coolant before it reaches the radiator and return same to a relatively cool section of the coolant jacket.
Abstract:
In order to increase cabin space and simultaneously increase the amount of engine cooling which can be effected by natural air drafts which occur during forward running of the vehicle, the engine radiator is disposed on a forward portion of the vehicle roof and arranged to receive coolant vapor generated in the engine coolant jacket. The coolant is condensed and returned to the coolant jacket via a level sensor controlled pump in a manner which maintain the structure of the engine subject to high heat flux securely immersed in coolant.When the engine is stopped the negative pressure which develops due to the condensation of the vapor is used to induct coolant from a reservoir in a manner to fill the system and obviate any negative pressure which would otherwise tend to induct contamination atmospheric air thereinto. In the event that some non-condensible matter collects in the system, a purge function is provided which pumps excess coolant into the coolant jacket and radiator and flushes out any air or the like each time the engine is started with the coolant temperature below a predetermined level.
Abstract:
In an internal combustion engine cooling system wherein the coolant is boiled and the vapor produced condensed in a radiator in a manner that the rate of condensation under light engine load is maintained at a level sufficiently low to raise the pressure within the system and thus raise the boiling point of the coolant while under heavy load increased to the point of lowering the pressure in the system and thus lower the coolant boiling point, an arrangement is provided to reduce the heat exchange capacity of the radiator when the rate of condensation therein due to uncontrollable external influences becomes excessive. When the engine is stopped, coolant is admitted to fill the system. To purge any air or like non-condensible which finds its way into the system, liquid coolant is pumped in to overfill the system and flush same out during engine warm-up.
Abstract:
A boiling and cooling apparatus for use in a V-type internal combustion engine. A connection passage (34) is connected between the water jackets (30, 31) formed in the respective banks of the V-type engine. The connection passage is formed with a collection port for collecting the vapor produced in the water jackets. The collected vapor is introduced into a condenser (7) in which it is cooled and liquerized. A level sensor (10) is provided in the connection passage for sensing the level of the coolant contained in the water jackets. When the sensed coolant level decreases below a predetermined value, coolant is introduced from a reservoir to the water jackets to maintain the coolant level at the predetermined value.
Abstract:
A valve train of an overhead camshaft engine is provided with a mechanism for taking up slack in the valve train. The slack take up mechanism is constituted by a tappet, an oil pressure chamber, a coil spring, etc. and constructed such that leakage of the oil pressure chamber takes place for take up adjustment during each cycle of valve operation.
Abstract:
In order to rapidly bring the temperature of the coolant in the coolant jacket of an evaporative type cooling system to a derived target value, both the rate of heat exchange between the condenser or radiator of the system and the surrounding ambient atmospheric air and the amount of coolant in the cooling circuit are varied in a manner to change the pressure and therefore the boiling point of the coolant. With the invention coolant is positively pumped to and from a reservoir which is maintained at atmospheric pressure, into and out of a cooling circuit which is hermetically sealed during engine operation via a valve and conduit arrangement which includes only two electromagnetic valves and associated conduits. A reversible pump is utilized to pump the coolant to and from the reservoir. The coolant is permitted to pass unrestrictedly through the pump when the pump is not operating due to a pressure differential between the cooling circuit and the reservoir.
Abstract:
In order to detect cooling system malfunction, the operation of a pump which recycles the liquid coolant from a radiator (or condensor) to the coolant jacket of a vapor cooled type engine, is monitored. In the event that the pump operation period and frequency (viz., the time between changes in pump operation) fail to fall within a predetermined time schedule, a malfunction indicating signal is issued. The schedule can be varied in accordance with a signal indicative of the amount of fuel being combusted in the engine (viz., the amount of heat being produced by the engine) so as to take into the account the increased amount of coolant circulation which occurs under high engine load operation and the accompanying changes in pump operation characteristics.
Abstract:
A cabin heating arrangement is associated with an evaporative type engine cooling system and arranged so that immediately after a cold engine start when the cooling circuit of the engine is completely filled with liquid coolant coolant is inducted from a first port located immediately adjacent the most highly heated structure of the engine and pumped through the core of the cabin heater. Upon the coolant temperature rising sufficiently, coolant vapor is inducted from a second port located above the first one and introduced into the heater core.