US1322174A - Tiste baebakotj - Google Patents

Description

M. J. B. BARBAROU.

MEANS FOR LUBRICATING EXPLOSIVE ENGINES.

APPLICATION FILED APR-28, I9I5.

1,322 174. I Patented Nov 18, 1919.

FIG}- M. J. B. BARBAROU.

MEANS FOR LUBRICATING EXPLOSIVE ENGINES.

APPLICATION FILED APR. 28, 19x5.

1,322, 174:. Patented Nov. 18, 1919.

2 SHEETSSHEET 2.

MARIUs JEAN BAPTISTE BARBAROU; OFNEUILLY-SUR-SEINE, FRANCE.

Specification of Letters Patent.

' MEANS r03 temmmme evasive-Enema.

Patented Nov. 18, 1919.

Applicationifiled'April as, 1915. Serial noflz'aels.

' To'aZZ whom it may concern Be it known that I,'MAn1UsTE.-\N Bar- 'rrs'rn BARBAROU, a citizen of the French Republic, residing at Neuilly-sur-Seine, France, have invented certaln new and useful Improvements in Means for Lubricating Explosive-Engines, of which the following is a specification.

My invention relates to improvements in means for lubricating explosive engines.

In lubricating systems at present" most generally employed, the circulation of oil is effected by valveless, oscillating barrel pumps, which are generally fixed tothe lower part of the engine casing forming the oil well or tank.

According to my invention, I support the pump at the upper part of the casing, whereby I secure a number of very substantial advantages over existing types 'of'hibrieating systems. By my improved arrangement, I reduce the distance between the axis of the shaft driving the pump and that of the barrel, thus increasing for any given stroke of the eccentric the angle of oscillation of the barrel and consequently the eX- tent to which the intake and discharge ports are opened. As a result of increasing the opening of these ports, they may be reduced in length whereby the dead space within the pump may be decreased. These two factors, viz: increase of the opening of the ports and reduction of the dead space in the pump, cooperate in enhancing the satisfactory operation of the pump.

Another advantage resulting from my improved arrangement is that, owing to the fact that all parts of the pump are rigid with the upper easing, the pump may be very easily installed and inspected or repaired by simply removing the lower part of the casing, which, in my construction merely performs the function of a housing forming the oil reservoir.

Another feature of my invention is that the oscillating barrel moves in an absolutely closed receptacle containing the oil which forms a seal at the closing lips of the barrel, in this manner the entrance of air between the oscillating barrel and the wall of the chamber in which it revolves is prevented.

The invention is illustratively exemplified in the accompanying drawings, wherein- Figure 1 is a vertical sectional view taken axially through the oscillating barrel; and

Fig. 2 is a sectionat right angles to Fig. 1. Referring to the drawings by reference characters, (6 denotes a tubular member forming the pump body, threaded into an oscillating barrel Z). The latter rotates in a casing cl provided with an interior sleeve or lining 0, and having one of its endsclosed by'a'cap or head at. he casing d is suspended from the upper part f (which may be one of the engine bearings) of the engine casing, the cap 9 of the engine bearing and a distance piece it being interposed between the casing 65 of the pump and the said part f of the engine'casing. 2' denotes the'intake tube which dips into the oil contained in the I lower part j of the engine casing, and 7e flargm of the operating eccentric, the" disk it "of whlch 'isintegral wlth tlie'crank shaft 0 of the engine.

The oscillating barrel 5 comprises the central tubular part in which the pump body a is threaded, and the cylindrical upper and lower lips 79 and g, which slide in contact with the sleeve or lining a. To prevent the entrance of air between the lower lips q and the sleeve 0 the oil is constantly maintained at a certain level above the plane of contact of these two members. To this end, the chamber 1 which surrounds the central tubular part b of the barrel is closed at two ends by the wall of the casing (Z andthe cap or head at, and the oil which enters this chamber at the beginning of the engine operation remains to form a liquid seal against the entrance of air. Furthermore, the contact of the upper lips p of the barrel with the sleeve 0 also prevents the entrance of air into the pump chamber;

The operation of the pump is similar tothat of the general type of barrel pumps, and will be understood from the following description. As the engine shaft 0 turns in former into communication with the discharge pipe k. This sequence occurs throughout the operation of the pump.

I desire it to be understood that the in- 5 vention is not limited to the details of engines, in combination, an engine casing comprising an upper part and a removable lower part constituting an oil reservoir, a crank shaft rotatably supported in the upper part of said engine casing, a lubricating pump suspended from said upper part and entirely free from thelower part, drivmg means connecting said pump to the crank shaft of the englne'and an extended intake tube depending from said pump into 30 sald 011 tank.

2. In a lubricating device for explosive engines, in combination, an engine casing comprising an upper part and a removable lower part, the latter being adaptedto form an oil tank, a crank shaft rotatably supported in the upper part of the engine easing, a pump casing suspended from said upper part and provided with an intake port in communication with the oil tank and a discharge port in communication with the parts to be lubricated, an oscillating barrel mounted in said pump casing and having a bore adapted to alternately regis ter with the intake port and the discharge port, a piston adapted to slide in said bore of the oscillatingbarrel and an eccentric mounted on the crank shaft for driving said piston.

3. In a lubricating device for explosive engines, in combination: an engine casing comprising an upper part and a removable lower partythe latter being adapted to form an oil tank, a removable bearing cap secured to the upper part, a crank shaft rotatably supported in said bearing cap, a pump casing suspended from said removable bearing cap, and provided with an intake port in comnnmication with the oil tank and a discharge port in communication with the parts to be lubricated, an oscillating barrel mounted in said pump casing and having a bore adapted to alternately register with the intake port and the discharge port, a piston adapted to slide in said bore of the oscillating barrel and an eccentric mounted on the crank shaft for drivingi said piston.

In testimony whereof I have affixed my signature in presence of two witnesses.

MARIUS JEAN BAP'llS'lE- BARBAROU.

Witnesses:

P. LAYRAR, JOHN J. ERNSTER.

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