EVENDALE, Ohio (AP) _ Sales by General Electric Co.'s aircraft engine division this year already match the total for all of 1988.

This week, the division, whose offices are in this Cincinnati suburb, announced three new orders totaling $355 million. This means that more than $5 billion in new commercial jet engine orders have been awarded this year to GE and CFM International, its 50-50 partner with SNECMA of France.

''1989 promises to be an absolutely phenomenal year for our commercial engine business. The agreements we have reached with our customers have been unprecedented,'' said Brian Rowe, senior vice president for the division.

Through the first four months of 1989, CFM obtained commercial engine orders valued at $3.1 billion. Meanwhile, GE was awarded $2 billion worth of new orders for its CF6-80C2 engine.

GE said Wednesday that it will supply CF6-80C2 engines valued at as much as $230 million for at least eight and as many as 12 Airbus Industrie A310-300 widebody aircraft ordered by Trans European Airways in Belgium.

GE also announced that Air Algerie has specified CF6-80C2 engines valued at more than $40 million for three Boeing 767-300 widebodies it ordered.

Thai Airways chose the CF6 engine to power one Boeing 747-400 widebody it ordered this week. That order is worth $20 million.

In addition, Thai Airways specified CFM56-3 engines valued at $65 million for seven Boeing 737-400 narrow body jetliners.

CFM engines are jointly produced in the United States and France. The CF6 engine is made by GE alone at Evendale.