RU97121105A - IMPROVED PISTON PUMP, IN PARTICULAR RADIAL PISTON PUMP, FOR FUEL OF INTERNAL COMBUSTION ENGINES - Google Patents

IMPROVED PISTON PUMP, IN PARTICULAR RADIAL PISTON PUMP, FOR FUEL OF INTERNAL COMBUSTION ENGINES

Info

Publication number
RU97121105A
RU97121105A RU97121105/06A RU97121105A RU97121105A RU 97121105 A RU97121105 A RU 97121105A RU 97121105/06 A RU97121105/06 A RU 97121105/06A RU 97121105 A RU97121105 A RU 97121105A RU 97121105 A RU97121105 A RU 97121105A
Authority
RU
Russia
Prior art keywords
piston
pump
shoe
pump according
cam
Prior art date
Application number
RU97121105/06A
Other languages
Russian (ru)
Other versions
RU2196248C2 (en
Inventor
Рикко Марио
Original Assignee
Элазис Система Ричерка Фиат Нель Медзоджорно
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from IT1996TO000264U external-priority patent/IT239879Y1/en
Application filed by Элазис Система Ричерка Фиат Нель Медзоджорно filed Critical Элазис Система Ричерка Фиат Нель Медзоджорно
Publication of RU97121105A publication Critical patent/RU97121105A/en
Application granted granted Critical
Publication of RU2196248C2 publication Critical patent/RU2196248C2/en

Links

Claims (9)

1. Поршневой насос, содержащий по меньшей мере один цилиндр (21), в котором скользит поршень (42), и приводной вал (28), в свою очередь содержащий кулачок (39), вращающийся на эксцентрической части (35), изготовленной за одно целое с упомянутым валом (28) для приведения в действие поршня (42), причем кулачок содержит плоский участок (40), зацепляемый подушкой (43), изготовленной за одно целое с поршнем (42), отличающийся тем, что между плоским участком (40) и подушкой (43) установлен элемент (66), изготовленный из самосмазывающегося материала для гарантирования смазывания между подушкой (43) и плоским участком (40) при любых рабочих условиях насоса.1. A piston pump containing at least one cylinder (21) in which the piston (42) slides, and the drive shaft (28), in turn, containing a cam (39) rotating on an eccentric part (35) made in one integral with said shaft (28) for actuating the piston (42), the cam comprising a flat portion (40) engaged with a pillow (43) made in one piece with the piston (42), characterized in that between the flat portion (40) ) and a pillow (43) has an element (66) made of a self-lubricating material to guarantee lubrication Bani between the pad (43) and flat portion (40) at all operating conditions of the pump. 2. Насос по п.1, отличающийся тем, что элемент имеет форму дискоообразного башмака (66). 2. The pump according to claim 1, characterized in that the element has the form of a disco-shaped shoe (66). 3. Насос по п.2, отличающийся тем, что башмак (66) смонтирован внутри полости (67), образованной в подушке (43) или в плоском участке (40). 3. The pump according to claim 2, characterized in that the shoe (66) is mounted inside the cavity (67) formed in the pillow (43) or in a flat section (40). 4. Насос по п.2, отличающийся тем, что башмак (66) прикреплен к подушке (43) или к плоскому участку (40) посредством болтов, сварки или связующего вещества. 4. The pump according to claim 2, characterized in that the shoe (66) is attached to the pillow (43) or to a flat section (40) by means of bolts, welding or a binder. 5. Насос по п.3 или 4, отличающийся тем, что башмак (66) содержит опору (69) из металлического материала, покрытого по меньшей мере одним слоем (70) самосмазывающегося материала, причем башмак (66) смонтирован внутри полости (67) посредством опоры (69). 5. A pump according to claim 3 or 4, characterized in that the shoe (66) comprises a support (69) of a metal material coated with at least one layer (70) of self-lubricating material, the shoe (66) being mounted inside the cavity (67) by means of a support (69). 6. Насос по п.5, отличающийся тем, что слой самосмазывающегося материала содержит слой (70) из политетрафлуорена и свинца, который поддерживается эластично соприкасающимся плоским участком (40). 6. The pump according to claim 5, characterized in that the layer of self-lubricating material contains a layer (70) of polytetrafluorene and lead, which is supported by an elastically contacting flat section (40). 7. Насос по одному из пп.2-6, отличающийся тем, что он содержит ряд цилиндров (21), соответственные оси (22) которых расположены на заданном угловом расстоянии относительно приводного вала (28), и ряд поршней (42), каждый из которых скользит внутри соответственного цилиндра (21) из ряда, причем радиальный внутренний конец каждого поршня (42) содержит подушку (43), зацепляющую соответственный плоский участок (40) кулачка (39) и башмак (66) установлен между каждой из подушек (43) и соответственным плоским участком (40). 7. The pump according to one of claims 2 to 6, characterized in that it contains a series of cylinders (21), the corresponding axis (22) of which are located at a given angular distance relative to the drive shaft (28), and a series of pistons (42), each of which slides inside a respective cylinder (21) from a row, the radial inner end of each piston (42) comprising a cushion (43) engaging a corresponding flat portion (40) of the cam (39) and a shoe (66) installed between each of the cushions (43 ) and the corresponding flat section (40). 8. Насос по п.7, отличающийся тем, что он является насосом высокого давления для топлива двигателей внутреннего сгорания, содержащий тело (20), имеющее закрытую камеру (23), вмещающую кулачок (39) и подушки (43), и в котором топливо подается для смазывания вала (28) и кулачка (39), при этом и вал (28) и эксцентрическая часть (35) содержат подшипники скольжения (29, 31, 34), в свою очередь содержащие металлическую опору и по меньшей мере один слой самосмазывающегося материала. 8. The pump according to claim 7, characterized in that it is a high pressure pump for fuel of internal combustion engines, comprising a body (20) having a closed chamber (23) containing a cam (39) and pillows (43), and in which fuel is supplied to lubricate the shaft (28) and cam (39), while both the shaft (28) and the eccentric part (35) contain sliding bearings (29, 31, 34), which in turn contain a metal support and at least one layer self-lubricating material. 9. Поршневой насос, в частности радиально-поршневой насос для топлива двигателей внутреннего сгорания, по существу как описано и показано здесь со ссылкой на прилагаемые чертежи. 9. A piston pump, in particular a radial piston pump for fuel of internal combustion engines, essentially as described and shown here with reference to the accompanying drawings.
RU97121105/06A 1996-12-23 1997-12-22 Radial piston fuel pump for internal combustion engine RU2196248C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO96U000264 1996-12-23
IT1996TO000264U IT239879Y1 (en) 1996-12-23 1996-12-23 REFINEMENTS TO A PISTON PUMP, IN PARTICULAR TO A RADIAL APISTON PUMP FOR THE FUEL OF AN INTERNAL COMBUSTION ENGINE.

Publications (2)

Publication Number Publication Date
RU97121105A true RU97121105A (en) 1999-08-27
RU2196248C2 RU2196248C2 (en) 2003-01-10

Family

ID=11414534

Family Applications (1)

Application Number Title Priority Date Filing Date
RU97121105/06A RU2196248C2 (en) 1996-12-23 1997-12-22 Radial piston fuel pump for internal combustion engine

Country Status (8)

Country Link
US (1) US5979297A (en)
EP (1) EP0851120B1 (en)
JP (1) JP4128253B2 (en)
KR (1) KR100538334B1 (en)
CN (1) CN1101523C (en)
DE (1) DE69723040T2 (en)
IT (1) IT239879Y1 (en)
RU (1) RU2196248C2 (en)

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