376results about How to "Improve cold start performance" patented technology

An electrically-variable transmission for use with an engine includes an input member configured for operative interconnection with the engine, an output member, and a stationary member. First and second motor/generators, a first and a second planetary gear set each having respective first, second, and third members are included. A first, a second, and a third selectively engagable torque-transmitting mechanism are included. The input member is connectable for common rotation with the first member of the first planetary gear set either continuously or selectively by engagement of the third torque-transmitting mechanism. The output member is connected for common rotation with the first member of the second planetary gear set. The motor/generators are controllable and the torque-transmitting mechanisms are selectively engagable to establish at least one electric-only mode, a series mode, an output-split mode, and at least one neutral mode.

The lubricating base oil of the invention satisfies at least one of conditions (a) or (b) below. The lubricating oil composition for an internal combustion engine according to the invention comprises the lubricating base oil of the invention, an ashless antioxidant containing essentially no sulfur as a constituent element, and at least one compound selected from among ashless antioxidants containing sulfur as a constituent element and organic molybdenum compounds. Also, a lubricating oil composition for a power train device according to the invention comprises the lubricating base oil of the invention, a poly(meth)acrylate-based viscosity index improver and a phosphorus-containing compound.

(a) The saturated component content is 90% by mass or greater, and the proportion of cyclic saturated components among the saturated components is 10-40% by mass.

(b) The condition represented by the following formula (1) is satisfied. 1.440≦n₂₀−0.002×kv100≦1.453 (1)

[wherein n₂₀ represents the 20° C. refractive index of the lubricating base oil, and kv100 represents the kinematic viscosity at 100° C. (mm²/s) of the lubricating base oil.]

The invention provides a lead-acid cell which belongs to the field of lead-acid cells, and can be used for solving the problems of poor large current performance and short cycle life of the existing lead-acid cell. Through adding conductive additive and carbon materials to a negative pole of the lead-acid cell, the lead-acid cell solves the problems of the poor large current performance, the short cycle life and the like of the existing lead-acid cell.

There is provided an electrode catalyst layer that has excellent durability compared to conventional electrode catalyst layers employing carbon supports, and that can minimize as much as possible the amount of catalyst material used while exhibiting desired output, by allowing adjustment of the amount as necessary. The electrode catalyst dispersion of the disclosure comprises catalyst particles that contain a non-conductive support and a conductive catalyst material covering the surface of non-conductive support, and a dispersing medium selected from among water, organic solvents and combinations thereof. The ink composition of the disclosure comprises catalyst particles containing a non-conductive support and a conductive catalyst material covering the surface of non-conductive support, a dispersing medium selected from among water, organic solvents and combinations thereof, and an ionic conductive polymer, wherein the volume ratio of the catalyst particles and the ionic conductive polymer is 55:45-90:10. There is further provided an electrode catalyst layer.

The invention discloses a negative plate of a battery, a preparation method thereof and the battery comprising the negative plate. The negative plate is composed of a plate grid and a negative pole material coated on the plate grid, and the negative pole material comprises a battery active material, a capacitor material as well as a conductive steric hindrance agent; the battery active material comprises 100 parts by weight of lead powder, 0.6-2.0 parts by weight of barium sulfate and 0.1-0.5 part by weight of short fiber, and the capacitor material comprises 0.1-10 parts by weight of active carbon; and the additive amount of the electric conduction steric hindrance agent is 0.1-5.0 in parts by weight, and the conductive steric hindrance agent comprises Magneli mutual sulfoxide titanium oxide and/or plumbous acid barium. The raw material of the negative plate of the battery provided by the invention can be used for postponing a negative board sulphate phenomenon through combining the three parts, the cold-starting property is markedly improved, and the heavy-current charge-discharge property is optimized.

The method of the invention controls engine speed during engine starting for a hybrid electric vehicle that includes a battery, an engine and a generator, acting as a motor, whereby generator torque assists the engine to develop a stable running speed throughout an engine start event, particularly a cold engine start event, without violating battery power limits.

Multi-stage in-line cartridge ejectors for a fuel cell system provided herein comprise: at least one ejector main body for supplying hydrogen, each ejector main body including a plurality of nozzles arranged in line with a predetermined gap, in which the diameters of the respective nozzles become larger from an inlet side of the ejector main body toward an outlet side thereof, and a plurality of sub-inlets formed on an outer surface of the ejector main body to be connected to the gap or gaps between the nozzles; and a housing accommodating the eject main body and including a main inlet for intake of recirculated hydrogen. The multi-stage in-line cartridge ejectors can improve the system performance by increasing the amount of recirculated hydrogen. Moreover, at least one check valve is provided at an intake position of the cartridge ejectors to effectively prevent reverse flow of recirculation hydrogen gas and at least one heater is provided around the cartridge ejectors to improve cold startability.

The invention discloses gasoline of high proportion methanol directly used for a vehicle. The methanol mass fraction is not less than 70%. The methanol gasoline comprises: 70-90% of methanol, 7-29% of component oil and 1 to 3% of additive, wherein, the component oil comprises C5-C7 saturated alkane, solvent oil, 90 # gasoline and toluene, the additive comprises C3-C8 monobasic alcohol, petroleum ether with distillation range of 30-60 degrees C., EGME, N, N'-2 salicylidene -1,2- propylene diamine and other raw materials which can be added or not. The provided gasoline of high proportion methanol directly used for the vehicle in the invention overcomes the existing technical problem of the gasoline of high proportion methanol under the circumstances that the existing engine is not required to be modified, and leads the gasoline of high proportion methanol to be well applied to the vehicle.

The invention relates the alcohol ether fuel and preparing method. The fuel comprises 20-80wt% methyl alcohol or ethanol, 14-75% petrol, 1-5% auxiliary solvent, 1.5-3wt% combustion adjuvant, 0.01-2wt% corrosion inhibitor, and 0.01-0.5wt% metal deactivator. The invention has the advantages of reducing energy consumption, good stable stability, good burning effect, good cold-starting, reducing the output volume of CO and HC, reducing CO content, simple technology and low cost.

The invention discloses a direct injection engine with diesel-gasoline dual-fuel sequence combustion, belonging to the technical field of engines. On the one hand, the engine can simultaneously make use of diesel and gasoline, and the two fuels can be sequentially and directly injected in one cycle; on the other hand, according to the engine, a high-compression-rate and three-way catalysis aftertreatment device, so that the engine can realize the purposes of high thermal efficiency and low emission simultaneously.

A battery warm up system according to the present disclosure includes a battery state measuring unit to measure a state of charge (SOC) of each module of a battery pack of a vehicle, a control unit to optionally output a forced discharging start signal and to output a balancing start signal, a forced discharging circuit unit to force at least one battery module among a plurality of battery modules of the battery pack to be discharged in response to the forced discharging start signal, and a balancing unit to balance the SOC of each of the battery modules in response to the balancing start signal.

The invention relates to an internal combustion steam engine that is based on the internal combustion thermodynamic generator. The variable radiators are taken out from the traditional engine, while the warm keep cover, and heat absorbing water spray system formed by water tank, low pressure water pump, water cooling heat exchanger, high pressure pump, high water sprayer, are installed on the outside of traditional engine and connected through the water delivery pipe according to the above order, thereof, the high pressure water sprayer if installed on the high temperature part of the firebox; besides, by reforming the fuel atomization and spraying device onto the air-changing channel to make engine save energy and the more environment-protective.

A hot coolant type heat accumulating apparatus for a hybrid vehicle is provided that includes an internal combustion engine having first and second coolant circulation systems through which a coolant is circulated using power from the engine, a heat accumulation tank that recovers, via part of the second coolant circulation system, some of the coolant that has been heated by the internal combustion engine, and stores that heated coolant, and a controller. This controller automatically shuts off the internal combustion engine when a predetermined shutoff condition has been fulfilled, circulates the coolant through the second coolant circulation system while the internal combustion engine is shutoff, and inhibits recovery of the hot coolant while the internal combustion engine is shutoff by automatic shutoff.

A carburetor choke valve electronic control system includes: a transmission device coupled to a choke valve for opening and closing an intake path of a carburetor; an electric motor for driving the choke valve to be opened and closed via the transmission device; and an electronic control unit for controlling operation of the electric motor. The system further includes: a casing mounted on one side of the carburetor, and housing the transmission device and the electric motor; an operating lever disposed outside the casing; and a choke valve forced closure mechanism that allows the transmission device to be operated in a direction that closes the choke valve by operation of the operating lever.

The invention relates to methanol-diesel and a preparation method thereof, and the methanol-diesel contains the following components in parts by weight: 30-80 parts of methanol, 20-60 parts of diesel and 10-50 parts of additives. The preparation method comprises the following steps: adding the additives into a reactor successively, and stirring until a uniform and steady transparent solution is formed, thus obtaining an additive mixed solution; and then mixing the methanol with 0# diesel, then adding the prepared additive mixed solution of a certain proportion under intense stirring, and thenstirring until the solution is clear and transparent, thus obtaining the prepared methanol-diesel. Compared with the prior art, the stability of the methanol-diesel is improved, the flash point and the combustion efficiency of the methanol-diesel are enhanced, and the mixed methanol-diesel is transparent and steady, has no milky or stratified situation and can be stored for a long time; and when in use, the methanol-diesel can be directly used, the structure of the existing engine does not need to be changed, and the performance indexes can all meet the requirements of commercial diesel.

An oil injector, inside which a positive temperature coefficient ceramics heating material is arranged, mainly comprises an injector needle valve, an injector needle valve body, an injector body, an injector tappet, an injector pressure-adjusting spring, a round heat transfer pipe inside the injector body, positive temperature coefficient heating ceramics inside the injector body, an insulated jacket inside the injector body, a round heat transfer pipe inside an oil inlet bolt, positive temperature coefficient heating ceramics inside the oil inlet bolt, an insulated jacket inside the oil inlet body, and so on. Positive temperature coefficient heating ceramics is arranged inside the oil inlet bolt and the oil injector, heats the diesel oil with a self-controlling temperature via the heat transfer pipes, and is insulated through the insulated jacket. The invention provides an oil injector used for diesel heating at the self-controlling temperature during the coal start and warm-up courses. The heating temperature will not exceed the boiling point of diesel oil. Less heating is needed, and the heating is quicker, so the diesel emission can be effectively improved and the cold-start performance can be promoted.

A battery warm up system according to the present disclosure includes an open signal receiving unit to receive a door open signal for opening a door of a vehicle, a temperature measuring unit to measure a temperature of a battery pack connected to a starter of the vehicle, a control unit to output a forced discharging start signal by referring to information associated with the temperature measured by the temperature measuring unit when the door open signal is received by the open signal receiving unit, and a forced discharging circuit unit to force a plurality of battery modules constituting the battery pack to be discharged in response to the forced discharging start signal.

The invention discloses an engine cold-start preheating device. A heat storing heat exchanger (3) is in a parallel connection with an exhaust pipe (2) of an engine (1), the heat storing heat exchanger (3) is used for storing exhaust air waste heat of the engine (1), the heat storing heat exchanger (3) is in a columnar structure, a plurality of heat storing units are distributed in the heat storing heat exchanger (3), each heat storing unit is a concentric casing pipe (7) which comprises an inner pipe and an outer pipe, a phase change thermal storage material (8) is encapsulated in annular space between the inner pipe and the outer pipe, two ends of the inner pipe are welded on two flow guide plates (9) respectively, a hollow cavity for enabling cooling water of the engine (1) to flow through is formed by the two flow guide plates (9) and inner walls of the heat storing heat exchanger (3), and the inner walls of the heat storing heat exchanger (3) are located between the two flow guide plates (9). The engine cold-start preheating device has the advantages of being low in costs, small in size, efficient, energy-saving and convenient to popularize and use in a wide range.