61results about How to "Low starting resistance" patented technology

The invention discloses a control method of an electronic expansion valve of an air conditioner. The maximum opening of the electronic expansion valve is 480 pulses. The control method comprises the steps that after a starting instruction is received, a control system of the air conditioner opens the electronic expansion valve to the maximum opening or to more than 70% of the maximum opening, and then a compressor is started; after the compressor is started and operates for a period of time till operating stably, the opening of the electronic expansion valve is adjusted to the target operating opening; an air conditioner system operates normally; when a shutting-down instruction is received, the control system of the air conditioner opens the electronic expansion valve completely. According to the technical scheme, due to the fact that the electronic expansion valve is completely opened in the starting process, the coolant pressure difference between the two ends of a system throttling device can be reduced, the starting resistance of the compressor can be reduced, and the starting current can be reduced. The service life of system elements can be prolonged. A small-capacitance capacitor can be used, and therefore the system cost can be lowered, and impact on a power grid and other household appliances can be reduced.

This invention is a divisional application, which application number is 200410075501.2. It relates to a damper. It includes cylinder body and moving body. At least parts of the moving body are in the cylinder body. At least one axial extended chamber is arranged in the cylinder body. The chamber is filled with viscous damping liquid and forms the damping chamber. The moving body is composed of moving blades that are arranged inside of the damping chamber. The moving blades and damping chamber wall form shearing cavity. The thickness dimension of the shearing cavity is far less than its axial dimension. Axial guiding device is arranged between the cylinder body and moving body. This invention is simple and reliable. It has no precise components. Thus, its cost is low. This invention also has long life span and can be used after examining and repairing.

The invention provides an automatic decompression starter, which relates to the field of electric starting technology of an internal-combustion engine and mainly comprises a power switch, an electromagnet and a starter. The automatic decompression starter is characterized in that: the power switch consists of a moving contact and two static contacts; an iron core of the electromagnet is in clearance fit with a shifting fork and is fixedly connected with a pulling wire lined with an internal-combustion engine decompression mechanism; both two static contacts of the power switch are connected with the electromagnet and a power connection of the starter respectively; and both switch-on and switch-off of a power supply of the starter are later than those of the electromagnet. The starter works in the state of decompression so that the starting failures are greatly reduced and the service life is prolonged.

The invention relates to a damper, comprising a cylinder body and a moving body; the moving body is at least positioned in the cylinder body partially, the cylinder body is internally provided with at least one chamber extending along the axial direction, and the chamber is filled with viscous damping liquid so as to a damping chamber; the damper is characterized in that the moving body consists of moving blades arranged in the damping chamber; the moving blades and the wall of the damping chamber form a shearing cavity; the thickness of the shearing cavity is far less than the axial dimension thereof; an elastic compensating body is arranged in the damping chamber or a compensating chamber communicated with the damping chamber. The damper is characterized by soft damping characteristics, simple structure, low manufacturing cost, stable performance, long service life, easy regeneration and environmental protection.

The invention discloses an auxiliary device for low-pressure and low-temperature starting of a diesel engine. The auxiliary device comprises a fuel heater, a lithium ion storage battery module, a starter, a water inflow/return valve, a water temperature sensor and a control unit; the fuel heater is provided with a water outlet pipeline; the water outlet pipeline is provided with the water temperature sensor and a first water inflow/return valve and connected with the water inlet of an engine oil pan water jacket; the water outlet of the engine oil pan water jacket is connected with a water return pipeline; the water return pipeline is provided with a second water inflow/return valve and a water pump; the control unit is connected with the water temperature sensor; the lithium ion storage battery module, the starter and a motor are connected in sequence. The auxiliary device realizes hot starting of the diesel engine under low pressure and low temperature conditions, reduces the abrasion of the diesel engine during starting and prolongs the service life of the diesel engine.

The invention discloses an engine lubricating oil supply system which comprises a lubricating oil tank, an oil supply pump and an oil return pump. The system is characterized by further comprising anoil drawing pump arranged before the oil supply pump. The flow amount of the oil drawing pump is 50%-60% of that of the oil supply pump. Lubricating oil of the lubricating oil tank is supplied to an engine after being pressurized through the oil drawing pump and the oil supply pump, and drawn back through the oil return pump after lubricating and cooling a gear, a bearing and the like. A part of return oil of the engine enters the oil supply pump along a first flowing way 1 to continue circulating, a part of the return oil flows back to the lubricating oil tank along a second flowing way 2, the flow amount of the first flowing way 1 and the flow amount of the second flowing way 2 are adjusted through a flow limiting nozzle arranged on the second flowing way 2, and it is ensured that the flow amount of the second flowing way 2 accounts for 80%-90% of the total flow amount of the return oil. According to the engine lubricating oil supply system, the two-stage pump is adopted for pressurizing the lubricating oil, most return oil of the engine does not flow into the lubricating oil tank, and directly enters the oil supply pump to continue circulating, the circulating route is short, preheating of the lubricating oil is benefitted, and starting resistance of the lubricating system is reduced.

The invention relates to a rope-swing-type self-resetting anti-drawing seismic isolation bearing. The rope-swing-type self-resetting anti-drawing seismic isolation bearing comprises a U-shaped bearing and a bearing upper plate. The U-shaped bearing and the bearing upper plate are connected through a floating seismic isolation device. According to the rope-swing-type self-resetting anti-drawing seismic isolation bearing, the seismic isolation bearing can isolate seismic oscillation transmitted from different directions through rolling of the roller along a rope and swing of the rope, seismic isolation protection can be provided for an upper portion structure, and damage of the structure is reduced and even avoided; the seismic isolation bearing isolates an earthquake through rolling of the roller along the rope and swing of the rope, and because the starting resistance of rolling and swinging is obviously reduced compared with traditional rubber or a sliding bearing, the seismic isolation efficiency is greatly improved; and the seismic isolation bearing isolates the earthquake through rolling of the roller along the rope and swing of the rope, through rolling of the roller along the rope and free swinging of the rope, the upper portion of the bearing can finally go back to an initial position of the bearing, and the rope-swing-type self-resetting anti-drawing seismic isolation bearing has a good self-resetting function.

The invention relates to the technical field of engine equipment with an engine oil preheating function, in particular to an engine oil preheating system, a control method thereof and an engine. The engine oil preheating system comprises a thermostat, a three-way solenoid valve, an engine oil cooler, an engine oil temperature sensor and a controller; the two water inlet ends of the three-way solenoid valve communicate with the water outlet end of the thermostat and a hot water supplying device correspondingly, and the water outlet end of the three-way solenoid valve communicates with the engine oil cooler; the engine oil temperature sensor is used for sensing the temperature of engine oil in the engine and electrically connected with the controller, and the controller is further connectedwith the three-way solenoid valve. The control method is applied to the engine oil preheating system, and the engine comprises the engine oil preheating system. According to the engine oil preheatingsystem, the control method thereof and the engine, during cold starting of the engine, the starting resistance is small, and fuel consumption and the emission load are low.

The invention discloses a loop heat pipe capable of being rapidly started. The loop heat pipe capable of being rapidly started comprises an evaporator, a condenser, a steam pipeline and a liquid pipeline, wherein the evaporator and the condenser are connected through the steam pipeline and the liquid pipeline. A PTFE film is arranged at an inlet, where the steam pipeline enters the condenser, in the tail end of the steam pipeline, and thus, liquid working media are prevented from entering the steam pipeline. According to the loop heat pipe capable of being rapidly started, the start time of the loop heat pipe is shortened, and meanwhile, it is ensured that the loop heat pipe can be smoothly started under a small heat load condition.

A microcomputer controlled variable compression ratio and variable air distribution phase is disclosed, and can increase the thermal efficiency, volume efficiency and mechanical efficiency of engine, save fuel, decrease the preheat time and prevent overhigh cooling temp. and decrease the abrasion of brake. The acceleration position sensor and other sensors output the electric signals to the microcomputer for controlling the controllers of air inlet and outlet valves. When corking conditions of 4-stroke engine change, the air inlet and outlet valves can be controlled at correct positions of crankshaft.

The invention relates to a bulk cargo conveying tank reconstructed through a container. The bulk cargo conveying tank comprises a container body which comprises a container top, a container bottom and a container door; and the bulk cargo conveying tank is characterized in that the container bottom is a W-shaped container bottom, the two downwards-sinking portions of the W-shaped container bottom are each provided with a horizontal packing auger, and a flow guide plate is arranged above each horizontal packing auger. Each flow guide plate is divided into a plurality of flow guide sheets in the longitudinal direction, and a gap is reserved between every two adjacent flow guide sheets; and the tail ends of the two sides of each flow guide sheet are connected with the W-shaped container bottom through flow guide plate adjusting plates, and gaps are reserved between the bottoms of the flow guide plate adjusting plates and the W-shaped container bottom. The container top is partially or wholly cut off, and a grid type feeding opening is horizontally formed in the position below the cut-off container top. By means of the reconstructed container, bulk cargoes can be loaded from the upper portion of the container and transversely unloaded through the horizontal packing augers, and loading and unloading are convenient and rapid; in addition, the container can well meet the requirement for conveying the bulk cargoes in a large batch; and the beneficial effects of being simple in operation, safe, efficient and the like are achieved.