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Patent Searching and Data


Matches 201 - 250 out of 3,932

Document Document Title
WO/1989/008797A1
A dynamic seal or bearing interface having a surface comprising: a first interface area (24) which, as it wears, provides a first amount of surface roughness which provides asperity tip load support (at 28); and a second interface area (...  
WO/1989/004931A1
A cylinder unit has a cylinder portion (1) in which a piston provided with a piston rod (3) is reciprocally movable under the influence of a pressure medium which is supplied to the cylinder portion (1). In order to provide reliable guid...  
WO/1988/008925A1
The invention relates to cylinder for piston engines and to a process for its production. The cylinder bore is characterized by its surface being aluminum-oxide ceramic of 3.85 - 3.95 g/cm3 density, containing 0.2 - 3.0 mass% calcium- an...  
WO/1988/008097A1
The invention relates to a working cylinder, such as a hydraulic cylinder, which comprises a cylinder part with two end portions (1, 2) and an interconnecting cylinder pipe (3). The object is to provide a new working cylinder which can b...  
WO/1988/001357A1
Closure arrangement, in particular for use in the closing of open ended cylinders. An end cap (20) or plug (50) is used to close the end of a cylinder (10), the cap (20) or plug (50) being locked in place by a flexible locking member (32...  
WO/1987/005076A1
The piston engine consists of a cylinder block with at least one cylinder in which the piston, equipped with at least one piston ring and connected with the crankshaft, is arranged to move up and down. In order to take account, in the en...  
WO/1987/001317A1
A cylinder lining device is produced by isostatic radial compression of a powder into a pressed body and sintering the body. The powder is compressed into the shape of a pressed body unit comprising at least two mutually integral cylinde...  
WO/1986/005550A1
The design and construction of present midsupported liner and multipiece block engines has caused increased manufacturing cost and reduced engine reliability. The present invention overcomes these engine construction problems by using an...  
WO/1986/004113A1
A light metal, e.g. aluminium alloy, cylinder liner (10) is produced by squeeze forming to incorporate woven glass fibre strengthening elements (18) in the metal matrix of the liner during the squeeze forming operation. Said elements (18...  
WO/1986/001434A1
Combined hydrostatic/hydrodynamic bearing system for a grinding apparatus in which the material is ground in a grinding space defined between a pair of relatively rotating grinding members and in which at least one of the grinding member...  
WO/1984/003742A1
Braking and holding device for displaceable rods such as the rods (4) in telescopic positioning and holding devices in which the rod is required to be braked in conjunction with its displacement for the purpose of extending or retracting...  
WO/1984/000591A1
A fluid cylinder in which the cylinder tube (14) has two internal cross-sections, a first cross-section (A) which receives the piston (10) and a second cross-section (B) which receives the piston rod (12) in guiding relationship.  
WO/1984/000585A1
A fluid - operated piston and cylinder device (10, 12) which is inexpensive to manufacture and which has at least one groove (32) in the inner wall of the cylinder (10) which permits flow of working fluid back and forth between opposite ...  
WO/1983/003261A1
The friction surface of a portion within the combustion chamber of a piston combustion engine, particularly the friction surface of a cylinder sleeve and/or a piston segment, is provided by locally melting and rapidly cooling a 0.5 - 8 m...  
WO/1983/002306A1
A pressure fluid cylinder without a piston rod and of the kind having a slotted cylinder tube (1) and a piston displaceable therein, said piston being connected to a movement transfer device, which extends radially through the slot. The ...  
WO/1983/001811A1
The hydraulic jack comprises a casing (1) with a face cover (2) and a back cover (3) and a piston rod (4) moving in relation to each other, on which rod there are provided a sealing element (7) and at least two grooves to form a correspo...  
WO/1982/002234A1
A method for reducing friction between relatively sliding members (1-3, 15-17) which are subject to a relative lateral force (F). One member is given a slight rotation (R) about an axis substantially perpendicular to the direction of sli...  
WO/1982/001493A1
Advantageous process for manufacturing a hollow machine cylinder subjected to a strong erosion and a high pressure, utilized in particular in machines working plastic materials. A blank is formed by forging and hot-rolling a starting bla...  
WO/1981/000117A1
A sliding material which has enough abrasion resistance, baking resistance, scuffing resistance, and intimate adhesion properties to be suited for use as a sliding surface of a piston ring or a cylinder liner for internal combustion engi...  
WO/1979/001103A1
An article, for example a piston for an internal combustion engine is formed of two or more layers of different material compositions in which there is a controlled graded change of composition between layers or within at least one of th...  
JPWO2019097678A1
Even if it makes projection height lower, junction intensity sufficient between the perimeter side members and adhesion nature are securable. It consists of casting surfaces, and the peripheral face of the cylindrical member made of cast...  
JP2019533781A
At least one cylinder (12) in which a piston (14) is stored in an inside movable between a top dead center (OT) and a bottom dead center (UT) as for the present invention, A cylinder bore (18) which a cylinder bore (D) of the cylinder ex...  
JP6601476B2  
JP2019183799A
[Subject] Thermal efficiency is raised in an internal-combustion engine. [Means for Solution] Cylinder block 2 which has cooling-water passage 30 established in a method of the outside of a diameter direction of cylinder 6 which receives...  
JP2019528189A
Specified microstructure which consists of a plurality of minute slots which the present invention keeps the direction distance of an axis mutually, and extend in the direction of the circumference is provided, It is related with a surfa...  
JP6579171B2  
JP6579027B2  
JP2019157844A
[Subject] A level difference by wear of cylinder inner skin is controlled. [Means for Solution] A piston at which engine 100 is provided a cylinder in which a cylinder liner was formed, and in a cylinder liner, A piston ring formed in a ...  
JP2019157743A
[Subject] Provide engine component parts with the high thermal insulation nature of a heat barrier, and good heat influence nature. [Means for Solution] Engine component parts are provided with the following. A metal substrate, A heat ba...  
JP2019157740A
[Subject] Provide engine component parts with the high thermal insulation nature of a heat barrier, and the good adhesion nature of a heat barrier to a substrate. [Means for Solution] Engine component parts are provided with the followin...  
JP2019157741A
[Subject] Provide engine component parts with the high thermal insulation nature of a heat barrier, and the good adhesion nature of a heat barrier to a substrate. [Means for Solution] Engine component parts are provided with the followin...  
JP2019157744A
[Subject] Provide engine component parts with the high thermal insulation nature of a heat barrier, and the good adhesion nature of a heat barrier to a substrate. [Means for Solution] Engine component parts are provided with the followin...  
JP2019157742A
[Subject] Provide engine component parts with the high thermal insulation nature of a heat barrier, and the good adhesion nature of a heat barrier to a substrate. [Means for Solution] Engine component parts are provided with the followin...  
JP2019152133A
[Subject] A concrete pump which can control that piston packing is damaged at an early stage is provided. [Means for Solution] Concrete piston 9A with which concrete cylinder 9 which moves before and behind the direction of an axis is eq...  
JP2019524997A
The cylinder of the piston type internal-combustion engine concerning the present invention, A cylinder is provided with at least one boa which has the inner side shell formed from the substrate, and it sets to the field of a boa, A subs...  
JP2019132338A
To provide an actuator in which a favorable membrane can be formed on an internal peripheral face of a cylinder.An actuator A comprises: an aluminum alloy-made cylinder 1; a bottom part 2 for blocking one end of the cylinder 1; a cylindr...  
JP2019120185A
To provide structure of a cylinder peripheral wall surface which allows for reduction of friction generated between a piston and a cylinder peripheral wall surface in an expansion stroke.A peripheral wall surface 21 of a cylinder 20 has ...  
JP2019121175A
To provide a pressure difference reducing device between high-temperature and high-pressure fluid, a method of reducing a pressure difference between the high-temperature and high-pressure fluid using the same, and a filtration device eq...  
JP2019120212A
To provide a cylinder block which can suppress the lowering of the roundness of cylinder bores at an operation.In a cylinder block to which a cylinder head is fixed with bolts, the cylinder block has holes into which the bolts are insert...  
JP2019119652A
To provide a thermal insulation material having low thermal conductivity using amorphous silicon, a manufacturing method therefor, and an internal combustion engine using the same.A thermal insulation material containing amorphous silico...  
JP2019108804A
To provide a cylinder block which can optimize a temperature of a cylinder bore.In this cylinder block, upper-side surface roughness is larger than lower-side surface roughness, and an upper-side cross hatch angle is larger than a lower-...  
JPWO2018092176A1
[Subject] A realizable internal-combustion engine is suitably provided for control of piston slap sound, and reduction of friction. [Means for Solution] Organization main part 2 which demarcates cylinder bore 3, and piston 4 stored in cy...  
JP2019100317A
To sufficiently supply lubrication fluid in an engine system comprising a variable compression mechanism.An engine system comprises a variable compression device with a fluid chamber, in which a piston rod connected to a piston is moved ...  
JP2019093408A
To provide a casting component in which a shear stress occurring on a casting surface is effectively dispersed.A casting component having a mesh-like protrusion 3, a bottom surface part F surrounded by the protrusion, and independent pro...  
JP2019094806A
To provide a fluid passage structure which can sufficiently secure the detection performance of detection means arranged in a fluid passage while securing a favorable fluid flow in the fluid passage.A fluid passage structure comprises: a...  
JP2019094781A
To provide a cylinder bore capable of appropriately forming an oil groove holding lubricant, to attain improvement in engine performance, and a method for manufacturing the cylinder bore.A cylinder bore 10 is manufactured by: performing ...  
JP6533858B1
[Subject] Friction is reduced and a cast-iron quality cylinder liner which has the outstanding printing-proof nature is provided. [Means for Solution] In a cylinder liner made of cast iron which has inner circumference sliding surfaces w...  
JP2019090346A
To further effectively cool inter-bore parts being portions between adjacent cylinder bores.A multicylinder engine 1 comprises a cylinder block 5 having a plurality of cylinder bores 7 which are arranged in series to a direction orthogon...  
JP2019089115A
To provide a member for insert casting in which, in the different two regions of an insert-cast member, the characteristics such as adhesion and thermal conductivity can be largely changed at easy, and a method for producing the same.Pro...  
JP2019090433A
To improve durability of a pressure resisting instrument.A cylinder tube includes a body portion 10 which has a through hole 11 opened to an end surface, and a lid portion 20 which closes an opening of the through hole 11 of the body por...  

Matches 201 - 250 out of 3,932